queries

Worker used to clean up pending subscriptions and old idempotency
records

.cargo/config.toml

@@ -1,3 +1,3 @@
 [target.x86_64-unknown-linux-gnu]
 linker = "clang"
-rustflags = ["-C", "link-arg=-fuse-ld=/usr/bin/mold"]
+rustflags = ["-C", "link-arg=-fuse-ld=mold"]

.dockerignore

@@ -4,3 +4,9 @@
 Dockerfile
 /scripts
 /migrations
+/node_modules
+/assets/css/main.css
+/.github
+README.md
+/tests
+/configuration/local.yaml

.env

@@ -1 +0,0 @@
-DATABASE_URL="postgres://postgres:Jq09NF6Y8ZXJS4jd9c8U@localhost:5432/newsletter"

.github/workflows/general.yml

@@ -1,11 +1,6 @@
-# The name of your workflow. GitHub displays the names of your workflows on your repository's "Actions" tab
 name: Rust
 
-# To automatically trigger the workflow
 on:
-  # NB: this differs from the book's project!
-  # These settings allow us to run this specific CI pipeline for PRs against
-  # this specific branch (a.k.a. book chapter).
   push:
     branches:
       - main
@@ -18,74 +13,51 @@ env:
   CARGO_TERM_COLOR: always
   SQLX_VERSION: 0.8.6
   SQLX_FEATURES: "rustls,postgres"
-  APP_USER: app
-  APP_USER_PWD: secret
-  APP_DB_NAME: newsletter
+  DATABASE_URL: postgres://postgres:password@postgres:5432/newsletter
+  APP_DATABASE__HOST: postgres
+  APP_KV_STORE__HOST: redis
 
-# A workflow run is made up of one or more jobs, which run in parallel by default
-# Each job runs in a runner environment specified by runs-on
 jobs:
-  # Unique identifier of our job (`job_id`)
   test:
-    # Sets the name `Test` for the job, which is displayed in the GitHub UI
     name: Test
-    # Containers must run in Linux based operating systems
     runs-on: ubuntu-latest
-    # Service containers to run alongside the `test` container job
     services:
-      # Label used to access the service container
       postgres:
-        # Docker Hub image
         image: postgres
-        # Environment variables scoped only for the `postgres` element
         env:
           POSTGRES_USER: postgres
           POSTGRES_PASSWORD: password
-          POSTGRES_DB: postgres
-        # When you map ports using the ports keyword, GitHub uses the --publish command to publish the container’s ports to the Docker host
-        # Opens tcp port 5432 on the host and service container
+          POSTGRES_DB: newsletter
         ports:
-          - 5432:5432
+          - 15432:5432
       redis:
-        image: redis:7
+        image: redis
         ports:
-          - 6379:6379
+          - 16379:6379
     steps:
-      # Downloads a copy of the code in your repository before running CI tests
       - name: Check out repository code
-        # The uses keyword specifies that this step will run v4 of the actions/checkout action.
-        # This is an action that checks out your repository onto the runner, allowing you to run scripts or other actions against your code (such as build and test tools).
-        # You should use the checkout action any time your workflow will run against the repository's code.
         uses: actions/checkout@v4
-      # This GitHub Action installs a Rust toolchain using rustup. It is designed for one-line concise usage and good defaults.
-      # It also takes care of caching intermediate build artifacts.
+      - name: Install mold linker
+        run: |
+          sudo apt-get update
+          sudo apt-get install -y mold clang
       - name: Install the Rust toolchain
         uses: actions-rust-lang/setup-rust-toolchain@v1
+        with:
+          cache: false
       - name: Install sqlx-cli
         run: cargo install sqlx-cli
           --version=${{ env.SQLX_VERSION }}
           --features ${{ env.SQLX_FEATURES }}
           --no-default-features
           --locked
-      - name: Create app user in Postgres
-        run: |
-          sudo apt-get install postgresql-client
-
-          # Create the application user
-          CREATE_QUERY="CREATE USER ${APP_USER} WITH PASSWORD '${APP_USER_PWD}';"
-          PGPASSWORD="password" psql -U "postgres" -h "localhost" -c "${CREATE_QUERY}"
-
-          # Grant create db privileges to the app user
-          GRANT_QUERY="ALTER USER ${APP_USER} CREATEDB;"
-          PGPASSWORD="password" psql -U "postgres" -h "localhost" -c "${GRANT_QUERY}"
       - name: Migrate database
-        run: SKIP_DOCKER=true ./scripts/init_db.sh
+        run: cargo sqlx migrate run
       - name: Run tests
-        run: cargo test
+        run: TEST_LOG=true cargo test
       - name: Check that queries are fresh
         run: cargo sqlx prepare --check --workspace
 
-  # `fmt` container job
   fmt:
     name: Rustfmt
     runs-on: ubuntu-latest
@@ -95,31 +67,30 @@ jobs:
         uses: actions-rust-lang/setup-rust-toolchain@v1
         with:
           components: rustfmt
+          cache: false
       - name: Enforce formatting
         run: cargo fmt --check
 
-  # `clippy` container job
   clippy:
     name: Clippy
     runs-on: ubuntu-latest
     env:
-      # This environment variable forces sqlx to use its offline mode,
-      # which means that it will not attempt to connect to a database
-      # when running the tests. It'll instead use the cached query results.
-      # We check that the cached query results are up-to-date in another job,
-      # to speed up the overall CI pipeline.
-      # This will all be covered in detail in chapter 5.
       SQLX_OFFLINE: true
     steps:
-      - uses: actions/checkout@v4
+      - name: Check out repository code
+        uses: actions/checkout@v4
+      - name: Install mold linker
+        run: |
+          sudo apt-get update
+          sudo apt-get install -y mold clang
       - name: Install the Rust toolchain
         uses: actions-rust-lang/setup-rust-toolchain@v1
         with:
           components: clippy
+          cache: false
       - name: Linting
         run: cargo clippy -- -D warnings
 
-  # `coverage` container job
   coverage:
     name: Code coverage
     runs-on: ubuntu-latest
@@ -129,45 +100,35 @@ jobs:
         env:
           POSTGRES_USER: postgres
           POSTGRES_PASSWORD: password
-          POSTGRES_DB: postgres
+          POSTGRES_DB: newsletter
         ports:
-          - 5432:5432
+          - 15432:5432
       redis:
-        image: redis:7
+        image: redis
         ports:
-          - 6379:6379
+          - 16379:6379
     steps:
       - uses: actions/checkout@v4
+      - name: Install mold linker
+        run: |
+          sudo apt-get update
+          sudo apt-get install -y mold clang
       - name: Install the Rust toolchain
         uses: actions-rust-lang/setup-rust-toolchain@v1
         with:
           components: llvm-tools-preview
+          cache: false
       - name: Install sqlx-cli
         run: cargo install sqlx-cli
           --version=${{ env.SQLX_VERSION }}
           --features ${{ env.SQLX_FEATURES }}
           --no-default-features
           --locked
-      - name: Create app user in Postgres
-        run: |
-          sudo apt-get install postgresql-client
-
-          # Create the application user
-          CREATE_QUERY="CREATE USER ${APP_USER} WITH PASSWORD '${APP_USER_PWD}';"
-          PGPASSWORD="password" psql -U "postgres" -h "localhost" -c "${CREATE_QUERY}"
-
-          # Grant create db privileges to the app user
-          GRANT_QUERY="ALTER USER ${APP_USER} CREATEDB;"
-          PGPASSWORD="password" psql -U "postgres" -h "localhost" -c "${GRANT_QUERY}"
       - name: Migrate database
-        run: SKIP_DOCKER=true ./scripts/init_db.sh
+        run: cargo sqlx migrate run
       - name: Install cargo-llvm-cov
         uses: taiki-e/install-action@cargo-llvm-cov
       - name: Generate code coverage
         run: cargo llvm-cov --all-features --workspace --lcov --output-path lcov.info
       - name: Generate report
         run: cargo llvm-cov report --html --output-dir coverage
-      - uses: actions/upload-artifact@v4
-        with:
-          name: "Coverage report"
-          path: coverage/

.gitignore

@@ -1,2 +1,6 @@
 /target
 /node_modules
+.env
+/.idea
+docker-compose.yml
+

.sqlx/query-02fff619c0ff8cb4f9946991be0ce795385b9e6697dcaa52f915acdbb1460e65.json

@@ -0,0 +1,18 @@
+{
+  "db_name": "PostgreSQL",
+  "query": "\n        INSERT INTO comments (user_id, comment_id, post_id, author, content)\n        VALUES ($1, $2, $3, $4, $5)\n        ",
+  "describe": {
+    "columns": [],
+    "parameters": {
+      "Left": [
+        "Uuid",
+        "Uuid",
+        "Uuid",
+        "Text",
+        "Text"
+      ]
+    },
+    "nullable": []
+  },
+  "hash": "02fff619c0ff8cb4f9946991be0ce795385b9e6697dcaa52f915acdbb1460e65"
+}

.sqlx/query-059162eba48cf5f519d0d8b6ce63575ced91941b8c55c986b8c5591c7d9b09e4.json

@@ -0,0 +1,64 @@
+{
+  "db_name": "PostgreSQL",
+  "query": "\n        SELECT p.post_id, p.author_id, u.username AS author, u.full_name,\n               p.title, p.content, p.published_at, last_modified\n        FROM posts p\n        LEFT JOIN users u ON p.author_id = u.user_id\n        WHERE p.post_id = $1\n        ",
+  "describe": {
+    "columns": [
+      {
+        "ordinal": 0,
+        "name": "post_id",
+        "type_info": "Uuid"
+      },
+      {
+        "ordinal": 1,
+        "name": "author_id",
+        "type_info": "Uuid"
+      },
+      {
+        "ordinal": 2,
+        "name": "author",
+        "type_info": "Text"
+      },
+      {
+        "ordinal": 3,
+        "name": "full_name",
+        "type_info": "Text"
+      },
+      {
+        "ordinal": 4,
+        "name": "title",
+        "type_info": "Text"
+      },
+      {
+        "ordinal": 5,
+        "name": "content",
+        "type_info": "Text"
+      },
+      {
+        "ordinal": 6,
+        "name": "published_at",
+        "type_info": "Timestamptz"
+      },
+      {
+        "ordinal": 7,
+        "name": "last_modified",
+        "type_info": "Timestamptz"
+      }
+    ],
+    "parameters": {
+      "Left": [
+        "Uuid"
+      ]
+    },
+    "nullable": [
+      false,
+      false,
+      false,
+      true,
+      false,
+      false,
+      false,
+      true
+    ]
+  },
+  "hash": "059162eba48cf5f519d0d8b6ce63575ced91941b8c55c986b8c5591c7d9b09e4"
+}

.sqlx/query-06f07a7522f3ee8e2cdfe5a7988a46f9a2598aa9c0618d00f6287978d5ce28ca.json

@@ -0,0 +1,20 @@
+{
+  "db_name": "PostgreSQL",
+  "query": "SELECT count(*) FROM notifications_delivered WHERE opened = TRUE",
+  "describe": {
+    "columns": [
+      {
+        "ordinal": 0,
+        "name": "count",
+        "type_info": "Int8"
+      }
+    ],
+    "parameters": {
+      "Left": []
+    },
+    "nullable": [
+      null
+    ]
+  },
+  "hash": "06f07a7522f3ee8e2cdfe5a7988a46f9a2598aa9c0618d00f6287978d5ce28ca"
+}

.sqlx/query-0f552668ea90475e1877425d51727cfe38a9d93571283aa33e8267b42e117e6e.json

@@ -0,0 +1,15 @@
+{
+  "db_name": "PostgreSQL",
+  "query": "UPDATE subscriptions SET status = 'confirmed', unsubscribe_token = $1 WHERE id = $2",
+  "describe": {
+    "columns": [],
+    "parameters": {
+      "Left": [
+        "Text",
+        "Uuid"
+      ]
+    },
+    "nullable": []
+  },
+  "hash": "0f552668ea90475e1877425d51727cfe38a9d93571283aa33e8267b42e117e6e"
+}

.sqlx/query-1e1a90042e89bd8662df3bae15bc7506146cff102034664c77ab0fc68b9480f5.json

@@ -0,0 +1,12 @@
+{
+  "db_name": "PostgreSQL",
+  "query": "\n        DELETE FROM idempotency\n        WHERE created_at < NOW() - INTERVAL '1 hour'\n        ",
+  "describe": {
+    "columns": [],
+    "parameters": {
+      "Left": []
+    },
+    "nullable": []
+  },
+  "hash": "1e1a90042e89bd8662df3bae15bc7506146cff102034664c77ab0fc68b9480f5"
+}

.sqlx/query-1fc92c14786c21d24951341e3a8149964533b7627d2d073eeac7b7d3230513ce.json

@@ -0,0 +1,64 @@
+{
+  "db_name": "PostgreSQL",
+  "query": "\n        SELECT p.author_id, u.username as author, u.full_name,\n               p.post_id, p.title, p.content, p.published_at, p.last_modified\n        FROM posts p\n        INNER JOIN users u ON p.author_id = u.user_id\n        WHERE p.author_id = $1\n        ORDER BY p.published_at DESC\n        ",
+  "describe": {
+    "columns": [
+      {
+        "ordinal": 0,
+        "name": "author_id",
+        "type_info": "Uuid"
+      },
+      {
+        "ordinal": 1,
+        "name": "author",
+        "type_info": "Text"
+      },
+      {
+        "ordinal": 2,
+        "name": "full_name",
+        "type_info": "Text"
+      },
+      {
+        "ordinal": 3,
+        "name": "post_id",
+        "type_info": "Uuid"
+      },
+      {
+        "ordinal": 4,
+        "name": "title",
+        "type_info": "Text"
+      },
+      {
+        "ordinal": 5,
+        "name": "content",
+        "type_info": "Text"
+      },
+      {
+        "ordinal": 6,
+        "name": "published_at",
+        "type_info": "Timestamptz"
+      },
+      {
+        "ordinal": 7,
+        "name": "last_modified",
+        "type_info": "Timestamptz"
+      }
+    ],
+    "parameters": {
+      "Left": [
+        "Uuid"
+      ]
+    },
+    "nullable": [
+      false,
+      false,
+      true,
+      false,
+      false,
+      false,
+      false,
+      true
+    ]
+  },
+  "hash": "1fc92c14786c21d24951341e3a8149964533b7627d2d073eeac7b7d3230513ce"
+}

.sqlx/query-22c9449522dcf495d9f49c16ca433aa07a0d1daae4884789ba1e36a918e7dfd1.json

@@ -0,0 +1,44 @@
+{
+  "db_name": "PostgreSQL",
+  "query": "\n        SELECT user_id, password_hash, role as \"role: Role\"\n        FROM users\n        WHERE username = $1\n        ",
+  "describe": {
+    "columns": [
+      {
+        "ordinal": 0,
+        "name": "user_id",
+        "type_info": "Uuid"
+      },
+      {
+        "ordinal": 1,
+        "name": "password_hash",
+        "type_info": "Text"
+      },
+      {
+        "ordinal": 2,
+        "name": "role: Role",
+        "type_info": {
+          "Custom": {
+            "name": "user_role",
+            "kind": {
+              "Enum": [
+                "admin",
+                "writer"
+              ]
+            }
+          }
+        }
+      }
+    ],
+    "parameters": {
+      "Left": [
+        "Text"
+      ]
+    },
+    "nullable": [
+      false,
+      false,
+      false
+    ]
+  },
+  "hash": "22c9449522dcf495d9f49c16ca433aa07a0d1daae4884789ba1e36a918e7dfd1"
+}

.sqlx/query-3124db53d9e1fe0701a2fc70eea98e001fef4b75c24d33d8dd595f6b483e8f65.json

@@ -0,0 +1,14 @@
+{
+  "db_name": "PostgreSQL",
+  "query": "\n        INSERT INTO idempotency (idempotency_key, created_at)\n        VALUES ($1, now())\n        ON CONFLICT DO NOTHING\n        ",
+  "describe": {
+    "columns": [],
+    "parameters": {
+      "Left": [
+        "Text"
+      ]
+    },
+    "nullable": []
+  },
+  "hash": "3124db53d9e1fe0701a2fc70eea98e001fef4b75c24d33d8dd595f6b483e8f65"
+}

.sqlx/query-3b79eca713fe7e167578537399436f5cb1171a7e89c398e005ad41ee12aaf91f.json

@@ -1,6 +1,6 @@
 {
   "db_name": "PostgreSQL",
-  "query": "\n        SELECT newsletter_issue_id, subscriber_email\n        FROM issue_delivery_queue\n        FOR UPDATE\n        SKIP LOCKED\n        LIMIT 1\n        ",
+  "query": "\n        SELECT newsletter_issue_id, subscriber_email, unsubscribe_token, kind\n        FROM issue_delivery_queue\n        FOR UPDATE\n        SKIP LOCKED\n        LIMIT 1\n        ",
   "describe": {
     "columns": [
       {
@@ -12,15 +12,27 @@
         "ordinal": 1,
         "name": "subscriber_email",
         "type_info": "Text"
+      },
+      {
+        "ordinal": 2,
+        "name": "unsubscribe_token",
+        "type_info": "Text"
+      },
+      {
+        "ordinal": 3,
+        "name": "kind",
+        "type_info": "Text"
       }
     ],
     "parameters": {
       "Left": []
     },
     "nullable": [
+      false,
+      false,
       false,
       false
     ]
   },
-  "hash": "06f83a51e9d2ca842dc0d6947ad39d9be966636700de58d404d8e1471a260c9a"
+  "hash": "3b79eca713fe7e167578537399436f5cb1171a7e89c398e005ad41ee12aaf91f"
 }

.sqlx/query-3d7376ca79ffd159830fc6d43042d5fe761b6d330924bde7c5fc0f17f533def9.json

@@ -0,0 +1,20 @@
+{
+  "db_name": "PostgreSQL",
+  "query": "SELECT count(*) FROM posts",
+  "describe": {
+    "columns": [
+      {
+        "ordinal": 0,
+        "name": "count",
+        "type_info": "Int8"
+      }
+    ],
+    "parameters": {
+      "Left": []
+    },
+    "nullable": [
+      null
+    ]
+  },
+  "hash": "3d7376ca79ffd159830fc6d43042d5fe761b6d330924bde7c5fc0f17f533def9"
+}

.sqlx/query-3f4aceeab03c1c7352d6bed39d397e17d1fc934015d53754f9b0055c4701ee21.json

@@ -0,0 +1,20 @@
+{
+  "db_name": "PostgreSQL",
+  "query": "SELECT count(*) FROM notifications_delivered",
+  "describe": {
+    "columns": [
+      {
+        "ordinal": 0,
+        "name": "count",
+        "type_info": "Int8"
+      }
+    ],
+    "parameters": {
+      "Left": []
+    },
+    "nullable": [
+      null
+    ]
+  },
+  "hash": "3f4aceeab03c1c7352d6bed39d397e17d1fc934015d53754f9b0055c4701ee21"
+}

.sqlx/query-409cb2c83e34fba77b76f031cb0846a8f2716d775c3748887fb0c50f0e0a565b.json

@@ -1,15 +0,0 @@
-{
-  "db_name": "PostgreSQL",
-  "query": "\n        INSERT INTO idempotency (user_id, idempotency_key, created_at)\n        VALUES ($1, $2, now())\n        ON CONFLICT DO NOTHING\n        ",
-  "describe": {
-    "columns": [],
-    "parameters": {
-      "Left": [
-        "Uuid",
-        "Text"
-      ]
-    },
-    "nullable": []
-  },
-  "hash": "409cb2c83e34fba77b76f031cb0846a8f2716d775c3748887fb0c50f0e0a565b"
-}

.sqlx/query-4141df8c45db179016d8e87b023b572bec7e04a6f3324aa17de7e7a9b1fb32ef.json

@@ -0,0 +1,22 @@
+{
+  "db_name": "PostgreSQL",
+  "query": "DELETE FROM subscriptions WHERE id = $1 RETURNING email",
+  "describe": {
+    "columns": [
+      {
+        "ordinal": 0,
+        "name": "email",
+        "type_info": "Text"
+      }
+    ],
+    "parameters": {
+      "Left": [
+        "Uuid"
+      ]
+    },
+    "nullable": [
+      false
+    ]
+  },
+  "hash": "4141df8c45db179016d8e87b023b572bec7e04a6f3324aa17de7e7a9b1fb32ef"
+}

.sqlx/query-5d9039a01feaca50218a1c791439b2bd3817582798027c00d59d43089531ecc0.json

@@ -0,0 +1,15 @@
+{
+  "db_name": "PostgreSQL",
+  "query": "\n        INSERT INTO issue_delivery_queue (\n            newsletter_issue_id,\n            subscriber_email,\n            unsubscribe_token,\n            kind\n        )\n        SELECT $1, email, unsubscribe_token, $2\n        FROM subscriptions\n        WHERE status = 'confirmed'\n        ",
+  "describe": {
+    "columns": [],
+    "parameters": {
+      "Left": [
+        "Uuid",
+        "Text"
+      ]
+    },
+    "nullable": []
+  },
+  "hash": "5d9039a01feaca50218a1c791439b2bd3817582798027c00d59d43089531ecc0"
+}

.sqlx/query-601884180bc841dc0762008a819218620fc05169fe3bb80b7635fbe9e227056b.json

@@ -0,0 +1,62 @@
+{
+  "db_name": "PostgreSQL",
+  "query": "\n        SELECT user_id, username, role as \"role: Role\", full_name, bio, member_since\n        FROM users\n        WHERE user_id = $1\n        ",
+  "describe": {
+    "columns": [
+      {
+        "ordinal": 0,
+        "name": "user_id",
+        "type_info": "Uuid"
+      },
+      {
+        "ordinal": 1,
+        "name": "username",
+        "type_info": "Text"
+      },
+      {
+        "ordinal": 2,
+        "name": "role: Role",
+        "type_info": {
+          "Custom": {
+            "name": "user_role",
+            "kind": {
+              "Enum": [
+                "admin",
+                "writer"
+              ]
+            }
+          }
+        }
+      },
+      {
+        "ordinal": 3,
+        "name": "full_name",
+        "type_info": "Text"
+      },
+      {
+        "ordinal": 4,
+        "name": "bio",
+        "type_info": "Text"
+      },
+      {
+        "ordinal": 5,
+        "name": "member_since",
+        "type_info": "Timestamptz"
+      }
+    ],
+    "parameters": {
+      "Left": [
+        "Uuid"
+      ]
+    },
+    "nullable": [
+      false,
+      false,
+      false,
+      true,
+      true,
+      false
+    ]
+  },
+  "hash": "601884180bc841dc0762008a819218620fc05169fe3bb80b7635fbe9e227056b"
+}

.sqlx/query-68a00cae18e40dc76ffea61dfc0ea84d8cb09502b24c11dbb8d403419899dfd1.json

@@ -0,0 +1,20 @@
+{
+  "db_name": "PostgreSQL",
+  "query": "SELECT count(*) FROM subscriptions",
+  "describe": {
+    "columns": [
+      {
+        "ordinal": 0,
+        "name": "count",
+        "type_info": "Int8"
+      }
+    ],
+    "parameters": {
+      "Left": []
+    },
+    "nullable": [
+      null
+    ]
+  },
+  "hash": "68a00cae18e40dc76ffea61dfc0ea84d8cb09502b24c11dbb8d403419899dfd1"
+}

.sqlx/query-73dbf3fb780272b1849cd8aa2ecfb59774b1c46bf52181b6298eebccbc86e438.json

@@ -0,0 +1,60 @@
+{
+  "db_name": "PostgreSQL",
+  "query": "\n        SELECT user_id, username, role as \"role: Role\", full_name, bio, member_since\n        FROM users\n        ORDER BY member_since DESC\n        ",
+  "describe": {
+    "columns": [
+      {
+        "ordinal": 0,
+        "name": "user_id",
+        "type_info": "Uuid"
+      },
+      {
+        "ordinal": 1,
+        "name": "username",
+        "type_info": "Text"
+      },
+      {
+        "ordinal": 2,
+        "name": "role: Role",
+        "type_info": {
+          "Custom": {
+            "name": "user_role",
+            "kind": {
+              "Enum": [
+                "admin",
+                "writer"
+              ]
+            }
+          }
+        }
+      },
+      {
+        "ordinal": 3,
+        "name": "full_name",
+        "type_info": "Text"
+      },
+      {
+        "ordinal": 4,
+        "name": "bio",
+        "type_info": "Text"
+      },
+      {
+        "ordinal": 5,
+        "name": "member_since",
+        "type_info": "Timestamptz"
+      }
+    ],
+    "parameters": {
+      "Left": []
+    },
+    "nullable": [
+      false,
+      false,
+      false,
+      true,
+      true,
+      false
+    ]
+  },
+  "hash": "73dbf3fb780272b1849cd8aa2ecfb59774b1c46bf52181b6298eebccbc86e438"
+}

.sqlx/query-74d92b078198c3f73edc272c788249b14b62c59365d745d6a2e314cd9c5db1e9.json

@@ -1,6 +1,6 @@
 {
   "db_name": "PostgreSQL",
-  "query": "\n        SELECT\n            response_status_code as \"response_status_code!\",\n            response_headers as \"response_headers!: Vec<HeaderPairRecord>\",\n            response_body as \"response_body!\"\n        FROM idempotency\n        WHERE\n            user_id = $1\n            AND idempotency_key = $2\n        ",
+  "query": "\n        SELECT\n            response_status_code as \"response_status_code!\",\n            response_headers as \"response_headers!: Vec<HeaderPairRecord>\",\n            response_body as \"response_body!\"\n        FROM idempotency\n        WHERE idempotency_key = $1\n        ",
   "describe": {
     "columns": [
       {
@@ -44,7 +44,6 @@
     ],
     "parameters": {
       "Left": [
-        "Uuid",
         "Text"
       ]
     },
@@ -54,5 +53,5 @@
       true
     ]
   },
-  "hash": "1fc498c8ccbf46f3e00b915e3b3973eb8d44a83a7df6dd7744dc56a2e94a0aa5"
+  "hash": "74d92b078198c3f73edc272c788249b14b62c59365d745d6a2e314cd9c5db1e9"
 }

.sqlx/query-769e8762bd2173c088d85fc132326b05a08e67092eac4c3a7aff8a49d086b5a0.json

@@ -0,0 +1,22 @@
+{
+  "db_name": "PostgreSQL",
+  "query": "\n                SELECT login_time FROM user_logins\n                WHERE user_id = $1\n                ORDER BY login_time DESC\n                ",
+  "describe": {
+    "columns": [
+      {
+        "ordinal": 0,
+        "name": "login_time",
+        "type_info": "Timestamptz"
+      }
+    ],
+    "parameters": {
+      "Left": [
+        "Uuid"
+      ]
+    },
+    "nullable": [
+      false
+    ]
+  },
+  "hash": "769e8762bd2173c088d85fc132326b05a08e67092eac4c3a7aff8a49d086b5a0"
+}

.sqlx/query-7eccf0027753bc1c42897aef12c9350eca023f3be52e24530127d06c3c449104.json

@@ -0,0 +1,12 @@
+{
+  "db_name": "PostgreSQL",
+  "query": "\n        DELETE FROM subscriptions\n        WHERE status = 'pending_confirmation'\n        AND subscribed_at < NOW() - INTERVAL '24 hours'\n        ",
+  "describe": {
+    "columns": [],
+    "parameters": {
+      "Left": []
+    },
+    "nullable": []
+  },
+  "hash": "7eccf0027753bc1c42897aef12c9350eca023f3be52e24530127d06c3c449104"
+}

.sqlx/query-84fcada696e1be5db55ef276e120ffef9adf7f5a4f5c4d5975b85e008e15620b.json

@@ -0,0 +1,22 @@
+{
+  "db_name": "PostgreSQL",
+  "query": "SELECT author_id FROM posts WHERE post_id = $1",
+  "describe": {
+    "columns": [
+      {
+        "ordinal": 0,
+        "name": "author_id",
+        "type_info": "Uuid"
+      }
+    ],
+    "parameters": {
+      "Left": [
+        "Uuid"
+      ]
+    },
+    "nullable": [
+      false
+    ]
+  },
+  "hash": "84fcada696e1be5db55ef276e120ffef9adf7f5a4f5c4d5975b85e008e15620b"
+}

.sqlx/query-878036fa48e738387e4140d5dc7eccba477794a267f2952aab684028b7c6e286.json

@@ -0,0 +1,27 @@
+{
+  "db_name": "PostgreSQL",
+  "query": "\n        INSERT INTO users (user_id, username, password_hash, role)\n        VALUES ($1, $2, $3, $4)\n        ",
+  "describe": {
+    "columns": [],
+    "parameters": {
+      "Left": [
+        "Uuid",
+        "Text",
+        "Text",
+        {
+          "Custom": {
+            "name": "user_role",
+            "kind": {
+              "Enum": [
+                "admin",
+                "writer"
+              ]
+            }
+          }
+        }
+      ]
+    },
+    "nullable": []
+  },
+  "hash": "878036fa48e738387e4140d5dc7eccba477794a267f2952aab684028b7c6e286"
+}

.sqlx/query-886de678764ebf7f96fe683d3b685d176f0a41043c7ade8b659a9bd167a2d063.json

@@ -0,0 +1,59 @@
+{
+  "db_name": "PostgreSQL",
+  "query": "\n        SELECT c.user_id as \"user_id?\", u.username as \"username?\", c.comment_id, c.post_id, c.author, c.content, c.published_at\n        FROM comments c\n        LEFT JOIN users u ON c.user_id = u.user_id AND c.user_id IS NOT NULL\n        ORDER BY published_at DESC\n        LIMIT $1\n        OFFSET $2\n        ",
+  "describe": {
+    "columns": [
+      {
+        "ordinal": 0,
+        "name": "user_id?",
+        "type_info": "Uuid"
+      },
+      {
+        "ordinal": 1,
+        "name": "username?",
+        "type_info": "Text"
+      },
+      {
+        "ordinal": 2,
+        "name": "comment_id",
+        "type_info": "Uuid"
+      },
+      {
+        "ordinal": 3,
+        "name": "post_id",
+        "type_info": "Uuid"
+      },
+      {
+        "ordinal": 4,
+        "name": "author",
+        "type_info": "Text"
+      },
+      {
+        "ordinal": 5,
+        "name": "content",
+        "type_info": "Text"
+      },
+      {
+        "ordinal": 6,
+        "name": "published_at",
+        "type_info": "Timestamptz"
+      }
+    ],
+    "parameters": {
+      "Left": [
+        "Int8",
+        "Int8"
+      ]
+    },
+    "nullable": [
+      true,
+      false,
+      false,
+      false,
+      true,
+      false,
+      false
+    ]
+  },
+  "hash": "886de678764ebf7f96fe683d3b685d176f0a41043c7ade8b659a9bd167a2d063"
+}

.sqlx/query-8d72bcc059606a15aef7e3c2455b9cc44427356b4ab772f0f1fb3dfd318c4561.json

@@ -0,0 +1,22 @@
+{
+  "db_name": "PostgreSQL",
+  "query": "SELECT unsubscribe_token FROM subscriptions WHERE email = $1",
+  "describe": {
+    "columns": [
+      {
+        "ordinal": 0,
+        "name": "unsubscribe_token",
+        "type_info": "Text"
+      }
+    ],
+    "parameters": {
+      "Left": [
+        "Text"
+      ]
+    },
+    "nullable": [
+      true
+    ]
+  },
+  "hash": "8d72bcc059606a15aef7e3c2455b9cc44427356b4ab772f0f1fb3dfd318c4561"
+}

.sqlx/query-8dc27ae224c7ae3c99c396302357514d66e843dc4b3ee4ab58c628b6c9797fdd.json

@@ -0,0 +1,17 @@
+{
+  "db_name": "PostgreSQL",
+  "query": "\n        UPDATE users\n        SET username = $1, full_name = $2, bio = $3\n        WHERE user_id = $4\n        ",
+  "describe": {
+    "columns": [],
+    "parameters": {
+      "Left": [
+        "Text",
+        "Text",
+        "Text",
+        "Uuid"
+      ]
+    },
+    "nullable": []
+  },
+  "hash": "8dc27ae224c7ae3c99c396302357514d66e843dc4b3ee4ab58c628b6c9797fdd"
+}

.sqlx/query-95a6533f617e7bae589b00548c73425b2991237b8c823dd7c863e6dad002d4b6.json

@@ -0,0 +1,20 @@
+{
+  "db_name": "PostgreSQL",
+  "query": "SELECT count(*) FROM subscriptions WHERE status = 'confirmed'",
+  "describe": {
+    "columns": [
+      {
+        "ordinal": 0,
+        "name": "count",
+        "type_info": "Int8"
+      }
+    ],
+    "parameters": {
+      "Left": []
+    },
+    "nullable": [
+      null
+    ]
+  },
+  "hash": "95a6533f617e7bae589b00548c73425b2991237b8c823dd7c863e6dad002d4b6"
+}

.sqlx/query-9bfa261067713ca31b191c9f9bcf19ae0dd2d12a570ce06e8e2abd72c5d7b42d.json

@@ -1,14 +0,0 @@
-{
-  "db_name": "PostgreSQL",
-  "query": "\n        INSERT INTO issue_delivery_queue (\n            newsletter_issue_id,\n            subscriber_email\n        )\n        SELECT $1, email\n        FROM subscriptions\n        WHERE status = 'confirmed'\n        ",
-  "describe": {
-    "columns": [],
-    "parameters": {
-      "Left": [
-        "Uuid"
-      ]
-    },
-    "nullable": []
-  },
-  "hash": "9bfa261067713ca31b191c9f9bcf19ae0dd2d12a570ce06e8e2abd72c5d7b42d"
-}

.sqlx/query-9fc831553927814e21dd2aa4ff92d06c32e318c7536918d5adbaf5eaf5777e3d.json

@@ -0,0 +1,14 @@
+{
+  "db_name": "PostgreSQL",
+  "query": "UPDATE notifications_delivered SET opened = TRUE WHERE email_id = $1",
+  "describe": {
+    "columns": [],
+    "parameters": {
+      "Left": [
+        "Uuid"
+      ]
+    },
+    "nullable": []
+  },
+  "hash": "9fc831553927814e21dd2aa4ff92d06c32e318c7536918d5adbaf5eaf5777e3d"
+}

.sqlx/query-a6cb227efa5ac12189e662d68b8dcc39032f308f211f603dfcf539b7b071b8e3.json

@@ -0,0 +1,47 @@
+{
+  "db_name": "PostgreSQL",
+  "query": "SELECT * FROM subscriptions ORDER BY subscribed_at DESC LIMIT $1 OFFSET $2",
+  "describe": {
+    "columns": [
+      {
+        "ordinal": 0,
+        "name": "id",
+        "type_info": "Uuid"
+      },
+      {
+        "ordinal": 1,
+        "name": "email",
+        "type_info": "Text"
+      },
+      {
+        "ordinal": 2,
+        "name": "subscribed_at",
+        "type_info": "Timestamptz"
+      },
+      {
+        "ordinal": 3,
+        "name": "status",
+        "type_info": "Text"
+      },
+      {
+        "ordinal": 4,
+        "name": "unsubscribe_token",
+        "type_info": "Text"
+      }
+    ],
+    "parameters": {
+      "Left": [
+        "Int8",
+        "Int8"
+      ]
+    },
+    "nullable": [
+      false,
+      false,
+      false,
+      false,
+      true
+    ]
+  },
+  "hash": "a6cb227efa5ac12189e662d68b8dcc39032f308f211f603dfcf539b7b071b8e3"
+}

.sqlx/query-aa7e732d453403819a489e1a4ac5c56cd3b57bc882c8b1e96a887811f8f999cd.json

@@ -0,0 +1,22 @@
+{
+  "db_name": "PostgreSQL",
+  "query": "SELECT id FROM subscriptions WHERE email = $1",
+  "describe": {
+    "columns": [
+      {
+        "ordinal": 0,
+        "name": "id",
+        "type_info": "Uuid"
+      }
+    ],
+    "parameters": {
+      "Left": [
+        "Text"
+      ]
+    },
+    "nullable": [
+      false
+    ]
+  },
+  "hash": "aa7e732d453403819a489e1a4ac5c56cd3b57bc882c8b1e96a887811f8f999cd"
+}

.sqlx/query-acf1b96c82ddf18db02e71a0e297c822b46f10add52c54649cf599b883165e58.json

@@ -1,28 +0,0 @@
-{
-  "db_name": "PostgreSQL",
-  "query": "\n        SELECT user_id, password_hash\n        FROM users\n        WHERE username = $1\n        ",
-  "describe": {
-    "columns": [
-      {
-        "ordinal": 0,
-        "name": "user_id",
-        "type_info": "Uuid"
-      },
-      {
-        "ordinal": 1,
-        "name": "password_hash",
-        "type_info": "Text"
-      }
-    ],
-    "parameters": {
-      "Left": [
-        "Text"
-      ]
-    },
-    "nullable": [
-      false,
-      false
-    ]
-  },
-  "hash": "acf1b96c82ddf18db02e71a0e297c822b46f10add52c54649cf599b883165e58"
-}

.sqlx/query-aef1e780d14be61aa66ae8771309751741068694b291499ee1371de693c6a654.json

@@ -0,0 +1,17 @@
+{
+  "db_name": "PostgreSQL",
+  "query": "\n                UPDATE posts\n                SET title = $1, content = $2, last_modified = $3 WHERE post_id = $4\n                ",
+  "describe": {
+    "columns": [],
+    "parameters": {
+      "Left": [
+        "Text",
+        "Text",
+        "Timestamptz",
+        "Uuid"
+      ]
+    },
+    "nullable": []
+  },
+  "hash": "aef1e780d14be61aa66ae8771309751741068694b291499ee1371de693c6a654"
+}

.sqlx/query-b47161386b21432693aa3827963e8167c942e395687cd5ffecb7c064ca2dde70.json

@@ -1,6 +1,6 @@
 {
   "db_name": "PostgreSQL",
-  "query": "UPDATE subscriptions SET status = 'confirmed' WHERE id = $1",
+  "query": "DELETE FROM posts WHERE post_id = $1",
   "describe": {
     "columns": [],
     "parameters": {
@@ -10,5 +10,5 @@
     },
     "nullable": []
   },
-  "hash": "a71a1932b894572106460ca2e34a63dc0cb8c1ba7a70547add1cddbb68133c2b"
+  "hash": "b47161386b21432693aa3827963e8167c942e395687cd5ffecb7c064ca2dde70"
 }

.sqlx/query-b64d5c2e51f328effc8f4687066db96ad695c575fb66195febcdf95c1539a153.json

@@ -1,11 +1,10 @@
 {
   "db_name": "PostgreSQL",
-  "query": "\n        UPDATE idempotency\n        SET\n            response_status_code = $3,\n            response_headers = $4,\n            response_body = $5\n        WHERE\n            user_id = $1\n            AND idempotency_key = $2\n        ",
+  "query": "\n        UPDATE idempotency\n        SET\n            response_status_code = $2,\n            response_headers = $3,\n            response_body = $4\n        WHERE idempotency_key = $1\n        ",
   "describe": {
     "columns": [],
     "parameters": {
       "Left": [
-        "Uuid",
         "Text",
         "Int2",
         {
@@ -37,5 +36,5 @@
     },
     "nullable": []
   },
-  "hash": "32701e61ea14e25608b5f6b05289d08d422e9629d6aee98ac1dcbd50f1edbfe1"
+  "hash": "b64d5c2e51f328effc8f4687066db96ad695c575fb66195febcdf95c1539a153"
 }

.sqlx/query-ba8d4af43c5654ecce5e396a05681249a28bdcff206d4972f53c8cbd837f8acf.json

@@ -0,0 +1,14 @@
+{
+  "db_name": "PostgreSQL",
+  "query": "DELETE FROM subscriptions WHERE unsubscribe_token = $1",
+  "describe": {
+    "columns": [],
+    "parameters": {
+      "Left": [
+        "Text"
+      ]
+    },
+    "nullable": []
+  },
+  "hash": "ba8d4af43c5654ecce5e396a05681249a28bdcff206d4972f53c8cbd837f8acf"
+}

.sqlx/query-bd08bf95dc1c8c0c7678bc509df7ce776e839846f29981e2e0bdfd382de9370f.json

@@ -0,0 +1,22 @@
+{
+  "db_name": "PostgreSQL",
+  "query": "SELECT count(*) FROM comments WHERE post_id = $1",
+  "describe": {
+    "columns": [
+      {
+        "ordinal": 0,
+        "name": "count",
+        "type_info": "Int8"
+      }
+    ],
+    "parameters": {
+      "Left": [
+        "Uuid"
+      ]
+    },
+    "nullable": [
+      null
+    ]
+  },
+  "hash": "bd08bf95dc1c8c0c7678bc509df7ce776e839846f29981e2e0bdfd382de9370f"
+}

.sqlx/query-bfd02c92fb5e0c8748b172bf59a77a477b432ada1f41090571f4fe0e685b1b1b.json

@@ -0,0 +1,28 @@
+{
+  "db_name": "PostgreSQL",
+  "query": "SELECT username, full_name FROM users WHERE user_id = $1",
+  "describe": {
+    "columns": [
+      {
+        "ordinal": 0,
+        "name": "username",
+        "type_info": "Text"
+      },
+      {
+        "ordinal": 1,
+        "name": "full_name",
+        "type_info": "Text"
+      }
+    ],
+    "parameters": {
+      "Left": [
+        "Uuid"
+      ]
+    },
+    "nullable": [
+      false,
+      true
+    ]
+  },
+  "hash": "bfd02c92fb5e0c8748b172bf59a77a477b432ada1f41090571f4fe0e685b1b1b"
+}

.sqlx/query-caf9f2603db6bc8b715cad188501c12f5de5fae49cd04271471f1337a3232f58.json

@@ -0,0 +1,14 @@
+{
+  "db_name": "PostgreSQL",
+  "query": "DELETE FROM comments WHERE comment_id = $1",
+  "describe": {
+    "columns": [],
+    "parameters": {
+      "Left": [
+        "Uuid"
+      ]
+    },
+    "nullable": []
+  },
+  "hash": "caf9f2603db6bc8b715cad188501c12f5de5fae49cd04271471f1337a3232f58"
+}

.sqlx/query-dc3c1b786b4f4bd65f625922ce05eab4cb161f3de6c6e676af778f7749af5710.json

@@ -0,0 +1,65 @@
+{
+  "db_name": "PostgreSQL",
+  "query": "\n        SELECT p.post_id, p.author_id, u.username AS author, u.full_name,\n               p.title, p.content, p.published_at, p.last_modified\n        FROM posts p\n        LEFT JOIN users u ON p.author_id = u.user_id\n        ORDER BY p.published_at DESC\n        LIMIT $1\n        OFFSET $2\n        ",
+  "describe": {
+    "columns": [
+      {
+        "ordinal": 0,
+        "name": "post_id",
+        "type_info": "Uuid"
+      },
+      {
+        "ordinal": 1,
+        "name": "author_id",
+        "type_info": "Uuid"
+      },
+      {
+        "ordinal": 2,
+        "name": "author",
+        "type_info": "Text"
+      },
+      {
+        "ordinal": 3,
+        "name": "full_name",
+        "type_info": "Text"
+      },
+      {
+        "ordinal": 4,
+        "name": "title",
+        "type_info": "Text"
+      },
+      {
+        "ordinal": 5,
+        "name": "content",
+        "type_info": "Text"
+      },
+      {
+        "ordinal": 6,
+        "name": "published_at",
+        "type_info": "Timestamptz"
+      },
+      {
+        "ordinal": 7,
+        "name": "last_modified",
+        "type_info": "Timestamptz"
+      }
+    ],
+    "parameters": {
+      "Left": [
+        "Int8",
+        "Int8"
+      ]
+    },
+    "nullable": [
+      false,
+      false,
+      false,
+      true,
+      false,
+      false,
+      false,
+      true
+    ]
+  },
+  "hash": "dc3c1b786b4f4bd65f625922ce05eab4cb161f3de6c6e676af778f7749af5710"
+}

.sqlx/query-dfa520877c017cd5808d02c24ef2d71938b68093974f335a4d89df91874fdaa2.json

@@ -0,0 +1,14 @@
+{
+  "db_name": "PostgreSQL",
+  "query": "DELETE FROM users WHERE user_id = $1",
+  "describe": {
+    "columns": [],
+    "parameters": {
+      "Left": [
+        "Uuid"
+      ]
+    },
+    "nullable": []
+  },
+  "hash": "dfa520877c017cd5808d02c24ef2d71938b68093974f335a4d89df91874fdaa2"
+}

.sqlx/query-e049f4db1020c0a2979d5ee3c1c0519de59eee8594eb2e472877e5db6bf25271.json

@@ -0,0 +1,62 @@
+{
+  "db_name": "PostgreSQL",
+  "query": "\n        SELECT user_id, username, full_name, role as \"role: Role\", member_since, bio\n        FROM users\n        WHERE username = $1\n        ",
+  "describe": {
+    "columns": [
+      {
+        "ordinal": 0,
+        "name": "user_id",
+        "type_info": "Uuid"
+      },
+      {
+        "ordinal": 1,
+        "name": "username",
+        "type_info": "Text"
+      },
+      {
+        "ordinal": 2,
+        "name": "full_name",
+        "type_info": "Text"
+      },
+      {
+        "ordinal": 3,
+        "name": "role: Role",
+        "type_info": {
+          "Custom": {
+            "name": "user_role",
+            "kind": {
+              "Enum": [
+                "admin",
+                "writer"
+              ]
+            }
+          }
+        }
+      },
+      {
+        "ordinal": 4,
+        "name": "member_since",
+        "type_info": "Timestamptz"
+      },
+      {
+        "ordinal": 5,
+        "name": "bio",
+        "type_info": "Text"
+      }
+    ],
+    "parameters": {
+      "Left": [
+        "Text"
+      ]
+    },
+    "nullable": [
+      false,
+      false,
+      true,
+      false,
+      false,
+      true
+    ]
+  },
+  "hash": "e049f4db1020c0a2979d5ee3c1c0519de59eee8594eb2e472877e5db6bf25271"
+}

.sqlx/query-e056c3230c1ccd1b3b62e902f49a41f21213e0f7da92b428065986d380676034.json

@@ -0,0 +1,20 @@
+{
+  "db_name": "PostgreSQL",
+  "query": "SELECT count(*) FROM comments",
+  "describe": {
+    "columns": [
+      {
+        "ordinal": 0,
+        "name": "count",
+        "type_info": "Int8"
+      }
+    ],
+    "parameters": {
+      "Left": []
+    },
+    "nullable": [
+      null
+    ]
+  },
+  "hash": "e056c3230c1ccd1b3b62e902f49a41f21213e0f7da92b428065986d380676034"
+}

.sqlx/query-f4ea2ad9ba4f26093152e4a0e008ef6c3114fbe9e51301611c5633e1cc944c05.json

@@ -0,0 +1,22 @@
+{
+  "db_name": "PostgreSQL",
+  "query": "SELECT user_id FROM users WHERE username = $1",
+  "describe": {
+    "columns": [
+      {
+        "ordinal": 0,
+        "name": "user_id",
+        "type_info": "Uuid"
+      }
+    ],
+    "parameters": {
+      "Left": [
+        "Text"
+      ]
+    },
+    "nullable": [
+      false
+    ]
+  },
+  "hash": "f4ea2ad9ba4f26093152e4a0e008ef6c3114fbe9e51301611c5633e1cc944c05"
+}

.sqlx/query-f682b1791fb9871c5f7416711caf32637d6303b2c166ef89e7f725b309d2219f.json

@@ -1,20 +1,25 @@
 {
   "db_name": "PostgreSQL",
-  "query": "\n        SELECT title, text_content, html_content\n        FROM newsletter_issues\n        WHERE newsletter_issue_id = $1\n        ",
+  "query": "\n        SELECT newsletter_issue_id, title, text_content, html_content\n        FROM newsletter_issues\n        WHERE newsletter_issue_id = $1\n        ",
   "describe": {
     "columns": [
       {
         "ordinal": 0,
+        "name": "newsletter_issue_id",
+        "type_info": "Uuid"
+      },
+      {
+        "ordinal": 1,
         "name": "title",
         "type_info": "Text"
       },
       {
-        "ordinal": 1,
+        "ordinal": 2,
         "name": "text_content",
         "type_info": "Text"
       },
       {
-        "ordinal": 2,
+        "ordinal": 3,
         "name": "html_content",
         "type_info": "Text"
       }
@@ -25,10 +30,11 @@
       ]
     },
     "nullable": [
+      false,
       false,
       false,
       false
     ]
   },
-  "hash": "43116d4e670155129aa69a7563ddc3f7d01ef3689bb8de9ee1757b401ad95b46"
+  "hash": "f682b1791fb9871c5f7416711caf32637d6303b2c166ef89e7f725b309d2219f"
 }

.sqlx/query-f8afa9b469bf8c216c5855e1d6b7ee05281c9e7779f8fd6486780f882f46e385.json

@@ -0,0 +1,15 @@
+{
+  "db_name": "PostgreSQL",
+  "query": "\n            INSERT INTO notifications_delivered (email_id, newsletter_issue_id)\n            VALUES ($1, $2)\n            ",
+  "describe": {
+    "columns": [],
+    "parameters": {
+      "Left": [
+        "Uuid",
+        "Uuid"
+      ]
+    },
+    "nullable": []
+  },
+  "hash": "f8afa9b469bf8c216c5855e1d6b7ee05281c9e7779f8fd6486780f882f46e385"
+}

.sqlx/query-fb280849a8a1fce21ec52cd9df73492d965357c9a410eb3b43b1a2e1cc8a0259.json

@@ -0,0 +1,60 @@
+{
+  "db_name": "PostgreSQL",
+  "query": "\n        SELECT c.user_id as \"user_id?\", u.username as \"username?\", c.comment_id, c.post_id, c.author, c.content, c.published_at\n        FROM comments c\n        LEFT JOIN users u ON c.user_id = u.user_id AND c.user_id IS NOT NULL\n        WHERE c.post_id = $1\n        ORDER BY c.published_at DESC\n        LIMIT $2\n        OFFSET $3\n        ",
+  "describe": {
+    "columns": [
+      {
+        "ordinal": 0,
+        "name": "user_id?",
+        "type_info": "Uuid"
+      },
+      {
+        "ordinal": 1,
+        "name": "username?",
+        "type_info": "Text"
+      },
+      {
+        "ordinal": 2,
+        "name": "comment_id",
+        "type_info": "Uuid"
+      },
+      {
+        "ordinal": 3,
+        "name": "post_id",
+        "type_info": "Uuid"
+      },
+      {
+        "ordinal": 4,
+        "name": "author",
+        "type_info": "Text"
+      },
+      {
+        "ordinal": 5,
+        "name": "content",
+        "type_info": "Text"
+      },
+      {
+        "ordinal": 6,
+        "name": "published_at",
+        "type_info": "Timestamptz"
+      }
+    ],
+    "parameters": {
+      "Left": [
+        "Uuid",
+        "Int8",
+        "Int8"
+      ]
+    },
+    "nullable": [
+      true,
+      false,
+      false,
+      false,
+      true,
+      false,
+      false
+    ]
+  },
+  "hash": "fb280849a8a1fce21ec52cd9df73492d965357c9a410eb3b43b1a2e1cc8a0259"
+}

.sqlx/query-fc383671ada951baa611ab7dd00efcc7f4f2aea7c22e4c0865e5c766ed7f99b3.json

@@ -0,0 +1,14 @@
+{
+  "db_name": "PostgreSQL",
+  "query": "INSERT INTO user_logins (user_id) VALUES ($1)",
+  "describe": {
+    "columns": [],
+    "parameters": {
+      "Left": [
+        "Uuid"
+      ]
+    },
+    "nullable": []
+  },
+  "hash": "fc383671ada951baa611ab7dd00efcc7f4f2aea7c22e4c0865e5c766ed7f99b3"
+}

Cargo.lock

@@ -17,19 +17,6 @@ version = "2.0.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "320119579fcad9c21884f5c4861d16174d0e06250625266f50fe6898340abefa"
 
-[[package]]
-name = "ahash"
-version = "0.8.12"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "5a15f179cd60c4584b8a8c596927aadc462e27f2ca70c04e0071964a73ba7a75"
-dependencies = [
- "cfg-if",
- "getrandom 0.3.3",
- "once_cell",
- "version_check",
- "zerocopy",
-]
-
 [[package]]
 name = "aho-corasick"
 version = "1.1.3"
@@ -240,28 +227,6 @@ dependencies = [
  "syn",
 ]
 
-[[package]]
-name = "axum-server"
-version = "0.7.2"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "495c05f60d6df0093e8fb6e74aa5846a0ad06abaf96d76166283720bf740f8ab"
-dependencies = [
- "arc-swap",
- "bytes",
- "fs-err",
- "http",
- "http-body",
- "hyper",
- "hyper-util",
- "pin-project-lite",
- "rustls",
- "rustls-pemfile",
- "rustls-pki-types",
- "tokio",
- "tokio-rustls",
- "tower-service",
-]
-
 [[package]]
 name = "backtrace"
 version = "0.3.75"
@@ -564,6 +529,29 @@ dependencies = [
  "typenum",
 ]
 
+[[package]]
+name = "cssparser"
+version = "0.35.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "4e901edd733a1472f944a45116df3f846f54d37e67e68640ac8bb69689aca2aa"
+dependencies = [
+ "cssparser-macros",
+ "dtoa-short",
+ "itoa",
+ "phf",
+ "smallvec",
+]
+
+[[package]]
+name = "cssparser-macros"
+version = "0.6.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "13b588ba4ac1a99f7f2964d24b3d896ddc6bf847ee3855dbd4366f058cfcd331"
+dependencies = [
+ "quote",
+ "syn",
+]
+
 [[package]]
 name = "darling"
 version = "0.20.11"
@@ -638,6 +626,26 @@ dependencies = [
  "serde",
 ]
 
+[[package]]
+name = "derive_more"
+version = "2.0.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "093242cf7570c207c83073cf82f79706fe7b8317e98620a47d5be7c3d8497678"
+dependencies = [
+ "derive_more-impl",
+]
+
+[[package]]
+name = "derive_more-impl"
+version = "2.0.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "bda628edc44c4bb645fbe0f758797143e4e07926f7ebf4e9bdfbd3d2ce621df3"
+dependencies = [
+ "proc-macro2",
+ "quote",
+ "syn",
+]
+
 [[package]]
 name = "deunicode"
 version = "1.6.2"
@@ -691,6 +699,27 @@ version = "0.15.7"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "1aaf95b3e5c8f23aa320147307562d361db0ae0d51242340f558153b4eb2439b"
 
+[[package]]
+name = "dtoa"
+version = "1.0.10"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "d6add3b8cff394282be81f3fc1a0605db594ed69890078ca6e2cab1c408bcf04"
+
+[[package]]
+name = "dtoa-short"
+version = "0.3.5"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "cd1511a7b6a56299bd043a9c167a6d2bfb37bf84a6dfceaba651168adfb43c87"
+dependencies = [
+ "dtoa",
+]
+
+[[package]]
+name = "ego-tree"
+version = "0.10.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "b2972feb8dffe7bc8c5463b1dacda1b0dfbed3710e50f977d965429692d74cd8"
+
 [[package]]
 name = "either"
 version = "1.15.0"
@@ -847,13 +876,13 @@ dependencies = [
 ]
 
 [[package]]
-name = "fs-err"
-version = "3.1.1"
+name = "futf"
+version = "0.1.5"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "88d7be93788013f265201256d58f04936a8079ad5dc898743aa20525f503b683"
+checksum = "df420e2e84819663797d1ec6544b13c5be84629e7bb00dc960d6917db2987843"
 dependencies = [
- "autocfg",
- "tokio",
+ "mac",
+ "new_debug_unreachable",
 ]
 
 [[package]]
@@ -956,6 +985,15 @@ dependencies = [
  "slab",
 ]
 
+[[package]]
+name = "fxhash"
+version = "0.2.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "c31b6d751ae2c7f11320402d34e41349dd1016f8d5d45e48c4312bc8625af50c"
+dependencies = [
+ "byteorder",
+]
+
 [[package]]
 name = "generic-array"
 version = "0.14.7"
@@ -967,13 +1005,12 @@ dependencies = [
 ]
 
 [[package]]
-name = "gethostname"
-version = "0.2.3"
+name = "getopts"
+version = "0.2.24"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "c1ebd34e35c46e00bb73e81363248d627782724609fe1b6396f553f68fe3862e"
+checksum = "cfe4fbac503b8d1f88e6676011885f34b7174f46e59956bba534ba83abded4df"
 dependencies = [
- "libc",
- "winapi",
+ "unicode-width",
 ]
 
 [[package]]
@@ -1099,6 +1136,17 @@ dependencies = [
  "windows-sys 0.59.0",
 ]
 
+[[package]]
+name = "html5ever"
+version = "0.35.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "55d958c2f74b664487a2035fe1dadb032c48718a03b63f3ab0b8537db8549ed4"
+dependencies = [
+ "log",
+ "markup5ever",
+ "match_token",
+]
+
 [[package]]
 name = "http"
 version = "1.3.1"
@@ -1502,6 +1550,43 @@ version = "0.1.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "112b39cec0b298b6c1999fee3e31427f74f676e4cb9879ed1a121b43661a4154"
 
+[[package]]
+name = "mac"
+version = "0.1.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "c41e0c4fef86961ac6d6f8a82609f55f31b05e4fce149ac5710e439df7619ba4"
+
+[[package]]
+name = "markdown"
+version = "1.0.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "a5cab8f2cadc416a82d2e783a1946388b31654d391d1c7d92cc1f03e295b1deb"
+dependencies = [
+ "unicode-id",
+]
+
+[[package]]
+name = "markup5ever"
+version = "0.35.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "311fe69c934650f8f19652b3946075f0fc41ad8757dbb68f1ca14e7900ecc1c3"
+dependencies = [
+ "log",
+ "tendril",
+ "web_atoms",
+]
+
+[[package]]
+name = "match_token"
+version = "0.35.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "ac84fd3f360fcc43dc5f5d186f02a94192761a080e8bc58621ad4d12296a58cf"
+dependencies = [
+ "proc-macro2",
+ "quote",
+ "syn",
+]
+
 [[package]]
 name = "matchers"
 version = "0.1.0"
@@ -1575,6 +1660,12 @@ dependencies = [
  "windows-sys 0.59.0",
 ]
 
+[[package]]
+name = "new_debug_unreachable"
+version = "1.0.6"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "650eef8c711430f1a879fdd01d4745a7deea475becfb90269c06775983bbf086"
+
 [[package]]
 name = "nom"
 version = "7.1.3"
@@ -1809,6 +1900,58 @@ dependencies = [
  "sha2",
 ]
 
+[[package]]
+name = "phf"
+version = "0.11.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "1fd6780a80ae0c52cc120a26a1a42c1ae51b247a253e4e06113d23d2c2edd078"
+dependencies = [
+ "phf_macros",
+ "phf_shared",
+]
+
+[[package]]
+name = "phf_codegen"
+version = "0.11.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "aef8048c789fa5e851558d709946d6d79a8ff88c0440c587967f8e94bfb1216a"
+dependencies = [
+ "phf_generator",
+ "phf_shared",
+]
+
+[[package]]
+name = "phf_generator"
+version = "0.11.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "3c80231409c20246a13fddb31776fb942c38553c51e871f8cbd687a4cfb5843d"
+dependencies = [
+ "phf_shared",
+ "rand 0.8.5",
+]
+
+[[package]]
+name = "phf_macros"
+version = "0.11.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "f84ac04429c13a7ff43785d75ad27569f2951ce0ffd30a3321230db2fc727216"
+dependencies = [
+ "phf_generator",
+ "phf_shared",
+ "proc-macro2",
+ "quote",
+ "syn",
+]
+
+[[package]]
+name = "phf_shared"
+version = "0.11.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "67eabc2ef2a60eb7faa00097bd1ffdb5bd28e62bf39990626a582201b7a754e5"
+dependencies = [
+ "siphasher",
+]
+
 [[package]]
 name = "pin-project-lite"
 version = "0.2.16"
@@ -1872,6 +2015,12 @@ dependencies = [
  "zerocopy",
 ]
 
+[[package]]
+name = "precomputed-hash"
+version = "0.1.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "925383efa346730478fb4838dbe9137d2a47675ad789c546d150a6e1dd4ab31c"
+
 [[package]]
 name = "proc-macro-error-attr2"
 version = "2.0.0"
@@ -1943,9 +2092,9 @@ dependencies = [
 
 [[package]]
 name = "quinn"
-version = "0.11.8"
+version = "0.11.9"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "626214629cda6781b6dc1d316ba307189c85ba657213ce642d9c77670f8202c8"
+checksum = "b9e20a958963c291dc322d98411f541009df2ced7b5a4f2bd52337638cfccf20"
 dependencies = [
  "bytes",
  "cfg_aliases",
@@ -1954,7 +2103,7 @@ dependencies = [
  "quinn-udp",
  "rustc-hash",
  "rustls",
- "socket2 0.5.10",
+ "socket2 0.6.0",
  "thiserror",
  "tokio",
  "tracing",
@@ -1963,9 +2112,9 @@ dependencies = [
 
 [[package]]
 name = "quinn-proto"
-version = "0.11.12"
+version = "0.11.13"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "49df843a9161c85bb8aae55f101bc0bac8bcafd637a620d9122fd7e0b2f7422e"
+checksum = "f1906b49b0c3bc04b5fe5d86a77925ae6524a19b816ae38ce1e426255f1d8a31"
 dependencies = [
  "bytes",
  "getrandom 0.3.3",
@@ -1984,14 +2133,14 @@ dependencies = [
 
 [[package]]
 name = "quinn-udp"
-version = "0.5.13"
+version = "0.5.14"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "fcebb1209ee276352ef14ff8732e24cc2b02bbac986cd74a4c81bcb2f9881970"
+checksum = "addec6a0dcad8a8d96a771f815f0eaf55f9d1805756410b39f5fa81332574cbd"
 dependencies = [
  "cfg_aliases",
  "libc",
  "once_cell",
- "socket2 0.5.10",
+ "socket2 0.6.0",
  "tracing",
  "windows-sys 0.59.0",
 ]
@@ -2282,15 +2431,6 @@ dependencies = [
  "zeroize",
 ]
 
-[[package]]
-name = "rustls-pemfile"
-version = "2.2.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "dce314e5fee3f39953d46bb63bb8a46d40c2f8fb7cc5a3b6cab2bde9721d6e50"
-dependencies = [
- "rustls-pki-types",
-]
-
 [[package]]
 name = "rustls-pki-types"
 version = "1.12.0"
@@ -2330,6 +2470,21 @@ version = "1.2.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "94143f37725109f92c262ed2cf5e59bce7498c01bcc1502d7b9afe439a4e9f49"
 
+[[package]]
+name = "scraper"
+version = "0.24.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "e5f3a24d916e78954af99281a455168d4a9515d65eca99a18da1b813689c4ad9"
+dependencies = [
+ "cssparser",
+ "ego-tree",
+ "getopts",
+ "html5ever",
+ "precomputed-hash",
+ "selectors",
+ "tendril",
+]
+
 [[package]]
 name = "secrecy"
 version = "0.10.3"
@@ -2340,6 +2495,25 @@ dependencies = [
  "zeroize",
 ]
 
+[[package]]
+name = "selectors"
+version = "0.31.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "5685b6ae43bfcf7d2e7dfcfb5d8e8f61b46442c902531e41a32a9a8bf0ee0fb6"
+dependencies = [
+ "bitflags",
+ "cssparser",
+ "derive_more",
+ "fxhash",
+ "log",
+ "new_debug_unreachable",
+ "phf",
+ "phf_codegen",
+ "precomputed-hash",
+ "servo_arc",
+ "smallvec",
+]
+
 [[package]]
 name = "semver"
 version = "1.0.26"
@@ -2442,6 +2616,15 @@ dependencies = [
  "serde",
 ]
 
+[[package]]
+name = "servo_arc"
+version = "0.4.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "204ea332803bd95a0b60388590d59cf6468ec9becf626e2451f1d26a1d972de4"
+dependencies = [
+ "stable_deref_trait",
+]
+
 [[package]]
 name = "sha1"
 version = "0.10.6"
@@ -2489,6 +2672,12 @@ dependencies = [
  "rand_core 0.6.4",
 ]
 
+[[package]]
+name = "siphasher"
+version = "1.0.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "56199f7ddabf13fe5074ce809e7d3f42b42ae711800501b5b16ea82ad029c39d"
+
 [[package]]
 name = "slab"
 version = "0.4.11"
@@ -2747,6 +2936,31 @@ version = "1.2.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "a8f112729512f8e442d81f95a8a7ddf2b7c6b8a1a6f509a95864142b30cab2d3"
 
+[[package]]
+name = "string_cache"
+version = "0.8.9"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "bf776ba3fa74f83bf4b63c3dcbbf82173db2632ed8452cb2d891d33f459de70f"
+dependencies = [
+ "new_debug_unreachable",
+ "parking_lot",
+ "phf_shared",
+ "precomputed-hash",
+ "serde",
+]
+
+[[package]]
+name = "string_cache_codegen"
+version = "0.5.4"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "c711928715f1fe0fe509c53b43e993a9a557babc2d0a3567d0a3006f1ac931a0"
+dependencies = [
+ "phf_generator",
+ "phf_shared",
+ "proc-macro2",
+ "quote",
+]
+
 [[package]]
 name = "stringprep"
 version = "0.1.5"
@@ -2801,6 +3015,17 @@ dependencies = [
  "syn",
 ]
 
+[[package]]
+name = "tendril"
+version = "0.4.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "d24a120c5fc464a3458240ee02c299ebcb9d67b5249c8848b09d639dca8d7bb0"
+dependencies = [
+ "futf",
+ "mac",
+ "utf-8",
+]
+
 [[package]]
 name = "thiserror"
 version = "2.0.16"
@@ -2926,9 +3151,9 @@ dependencies = [
 
 [[package]]
 name = "tokio-rustls"
-version = "0.26.2"
+version = "0.26.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "8e727b36a1a0e8b74c376ac2211e40c2c8af09fb4013c60d910495810f008e9b"
+checksum = "05f63835928ca123f1bef57abbcd23bb2ba0ac9ae1235f1e65bda0d06e7786bd"
 dependencies = [
  "rustls",
  "tokio",
@@ -3149,24 +3374,6 @@ dependencies = [
  "syn",
 ]
 
-[[package]]
-name = "tracing-bunyan-formatter"
-version = "0.3.10"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "2d637245a0d8774bd48df6482e086c59a8b5348a910c3b0579354045a9d82411"
-dependencies = [
- "ahash",
- "gethostname",
- "log",
- "serde",
- "serde_json",
- "time",
- "tracing",
- "tracing-core",
- "tracing-log 0.1.4",
- "tracing-subscriber",
-]
-
 [[package]]
 name = "tracing-core"
 version = "0.1.34"
@@ -3177,17 +3384,6 @@ dependencies = [
  "valuable",
 ]
 
-[[package]]
-name = "tracing-log"
-version = "0.1.4"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "f751112709b4e791d8ce53e32c4ed2d353565a795ce84da2285393f41557bdf2"
-dependencies = [
- "log",
- "once_cell",
- "tracing-core",
-]
-
 [[package]]
 name = "tracing-log"
 version = "0.2.0"
@@ -3214,7 +3410,7 @@ dependencies = [
  "thread_local",
  "tracing",
  "tracing-core",
- "tracing-log 0.2.0",
+ "tracing-log",
 ]
 
 [[package]]
@@ -3259,6 +3455,12 @@ version = "0.3.18"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "5c1cb5db39152898a79168971543b1cb5020dff7fe43c8dc468b0885f5e29df5"
 
+[[package]]
+name = "unicode-id"
+version = "0.3.6"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "70ba288e709927c043cbe476718d37be306be53fb1fafecd0dbe36d072be2580"
+
 [[package]]
 name = "unicode-ident"
 version = "1.0.18"
@@ -3286,6 +3488,12 @@ version = "1.12.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "f6ccf251212114b54433ec949fd6a7841275f9ada20dddd2f29e9ceea4501493"
 
+[[package]]
+name = "unicode-width"
+version = "0.2.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "4a1a07cc7db3810833284e8d372ccdc6da29741639ecc70c9ec107df0fa6154c"
+
 [[package]]
 name = "untrusted"
 version = "0.9.0"
@@ -3309,6 +3517,12 @@ version = "2.1.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "daf8dba3b7eb870caf1ddeed7bc9d2a049f3cfdfae7cb521b087cc33ae4c49da"
 
+[[package]]
+name = "utf-8"
+version = "0.7.6"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "09cc8ee72d2a9becf2f2febe0205bbed8fc6615b7cb429ad062dc7b7ddd036a9"
+
 [[package]]
 name = "utf8_iter"
 version = "1.0.4"
@@ -3496,6 +3710,18 @@ dependencies = [
  "wasm-bindgen",
 ]
 
+[[package]]
+name = "web_atoms"
+version = "0.1.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "57ffde1dc01240bdf9992e3205668b235e59421fd085e8a317ed98da0178d414"
+dependencies = [
+ "phf",
+ "phf_codegen",
+ "string_cache",
+ "string_cache_codegen",
+]
+
 [[package]]
 name = "webpki-roots"
 version = "0.26.11"
@@ -3844,23 +4070,22 @@ dependencies = [
  "argon2",
  "askama",
  "axum",
- "axum-server",
- "base64 0.22.1",
  "chrono",
  "claims",
  "config",
  "fake",
  "linkify",
+ "markdown",
  "once_cell",
  "quickcheck",
  "quickcheck_macros",
  "rand 0.9.2",
  "reqwest",
+ "scraper",
  "secrecy",
  "serde",
  "serde-aux",
  "serde_json",
- "serde_urlencoded",
  "sqlx",
  "thiserror",
  "tokio",
@@ -3868,10 +4093,7 @@ dependencies = [
  "tower-sessions",
  "tower-sessions-redis-store",
  "tracing",
- "tracing-bunyan-formatter",
  "tracing-subscriber",
- "unicode-segmentation",
- "urlencoding",
  "uuid",
  "validator",
  "wiremock",

Cargo.toml

@@ -11,20 +11,31 @@ path = "src/lib.rs"
 path = "src/main.rs"
 name = "zero2prod"
 
+[profile.release]
+opt-level = 'z'
+lto = true
+codegen-units = 1
+panic = 'abort'
+strip = true
+rpath = false
+debug = false
+debug-assertions = false
+overflow-checks = false
+incremental = false
+
 [dependencies]
 anyhow = "1.0.99"
 argon2 = { version = "0.5.3", features = ["std"] }
 askama = "0.14.0"
 axum = { version = "0.8.4", features = ["macros"] }
-axum-server = { version = "0.7.2", features = ["tls-rustls-no-provider"] }
-base64 = "0.22.1"
 chrono = { version = "0.4.41", default-features = false, features = ["clock"] }
 config = "0.15.14"
+markdown = "1.0.0"
 rand = { version = "0.9.2", features = ["std_rng"] }
 reqwest = { version = "0.12.23", default-features = false, features = [
-    "rustls-tls",
-    "json",
     "cookies",
+    "json",
+    "rustls-tls",
 ] }
 secrecy = { version = "0.10.3", features = ["serde"] }
 serde = { version = "1.0.219", features = ["derive"] }
@@ -43,10 +54,7 @@ tower-http = { version = "0.6.6", features = ["fs", "trace"] }
 tower-sessions = "0.14.0"
 tower-sessions-redis-store = "0.16.0"
 tracing = "0.1.41"
-tracing-bunyan-formatter = "0.3.10"
 tracing-subscriber = { version = "0.3.19", features = ["env-filter"] }
-unicode-segmentation = "1.12.0"
-urlencoding = "2.1.3"
 uuid = { version = "1.18.0", features = ["v4", "serde"] }
 validator = { version = "0.20.0", features = ["derive"] }
 
@@ -57,6 +65,6 @@ linkify = "0.10.0"
 once_cell = "1.21.3"
 quickcheck = "1.0.3"
 quickcheck_macros = "1.1.0"
+scraper = "0.24.0"
 serde_json = "1.0.143"
-serde_urlencoded = "0.7.1"
 wiremock = "0.6.4"

Dockerfile

@@ -1,5 +1,6 @@
-FROM lukemathwalker/cargo-chef:latest-rust-1.89.0 AS chef
+FROM lukemathwalker/cargo-chef:latest-rust-1.90.0 AS chef
 WORKDIR /app
+RUN apt update && apt install -y nodejs npm clang mold && rm -rf /var/lib/apt/lists/*
 
 FROM chef AS planner
 COPY . .
@@ -7,21 +8,17 @@ RUN cargo chef prepare --recipe-path recipe.json
 
 FROM chef AS builder
 COPY --from=planner /app/recipe.json recipe.json
-RUN apt update -y \
-    && apt install -y --no-install-recommends clang mold
 RUN cargo chef cook --release --recipe-path recipe.json
 COPY . .
 ENV SQLX_OFFLINE=true
+ENV RUSTFLAGS="-C strip=symbols"
 RUN cargo build --release --bin zero2prod
+RUN npm install && npm run build-css
 
-FROM debian:bookworm-slim AS runtime
+FROM gcr.io/distroless/cc-debian12 AS runtime
 WORKDIR /app
-RUN apt update -y \
-    && apt install -y --no-install-recommends openssl ca-certificates \
-    && apt autoremove -y \
-    && apt clean -y \
-    && rm -rf /var/lib/apt/lists/*
 COPY --from=builder /app/target/release/zero2prod zero2prod
-COPY configuration configuration
+COPY --from=builder /app/assets assets
+COPY --from=builder /app/configuration configuration
 ENV APP_ENVIRONMENT=production
 ENTRYPOINT [ "./zero2prod" ]

configuration/local.yaml

@@ -2,14 +2,16 @@ application:
   port: 8080
   host: "127.0.0.1"
   base_url: "http://127.0.0.1:8080"
+email_client:
+  authorization_token: "secret-token"
 database:
   host: "127.0.0.1"
   port: 5432
   database_name: "newsletter"
   username: "postgres"
-  password: "Jq09NF6Y8ZXJS4jd9c8U"
+  password: "password"
   require_ssl: false
-email_client:
-  authorization_token: "secret-token"
-redis_uri: "redis://127.0.0.1:6379"
-require_tls: false
+  timeout_milliseconds: 1000
+kv_store:
+  host: "127.0.0.1"
+  port: 6379

configuration/production.yaml

@@ -1,2 +1,4 @@
 application:
   host: "0.0.0.0"
+database:
+  timeout_milliseconds: 500

migrations/20250921113345_add_unsubscribe_token_to_subscriptions.sql

@@ -0,0 +1,5 @@
+ALTER TABLE subscriptions ADD COLUMN unsubscribe_token TEXT UNIQUE;
+
+UPDATE subscriptions
+SET unsubscribe_token = left(md5(random()::text), 25) 
+WHERE status = 'confirmed' AND unsubscribe_token IS NULL;

migrations/20250921152839_add_constraint_to_subscription_tokens_subscriber_id_fkey.sql

@@ -0,0 +1,8 @@
+ALTER TABLE subscription_tokens
+DROP CONSTRAINT subscription_tokens_subscriber_id_fkey;
+
+ALTER TABLE subscription_tokens
+ADD CONSTRAINT subscription_tokens_subscriber_id_fkey
+    FOREIGN KEY (subscriber_id)
+    REFERENCES subscriptions (id)
+    ON DELETE CASCADE;

migrations/20250921230225_add_unsubscribe_token_to_issue_delivery_queue.sql

@@ -0,0 +1 @@
+ALTER TABLE issue_delivery_queue ADD COLUMN unsubscribe_token TEXT NOT NULL;

migrations/20250924010147_add_kind_to_issue_delivery_queue.sql

@@ -0,0 +1 @@
+ALTER TABLE issue_delivery_queue ADD COLUMN kind TEXT NOT NULL;

migrations/20250924011112_create_notifications_delivered_table.sql

@@ -0,0 +1,7 @@
+CREATE TABLE notifications_delivered (
+    email_id UUID PRIMARY KEY,
+    newsletter_issue_id UUID NOT NULL
+        REFERENCES newsletter_issues (newsletter_issue_id),
+    delivered_at TIMESTAMPTZ NOT NULL DEFAULT NOW(),
+    opened BOOLEAN NOT NULL DEFAULT FALSE
+);

migrations/20250930145931_add_role_to_users.sql

@@ -0,0 +1,7 @@
+CREATE TYPE user_role AS ENUM ('admin', 'writer');
+
+ALTER TABLE users ADD COLUMN role user_role;
+
+UPDATE users SET role = 'admin' WHERE role IS NULL;
+
+ALTER TABLE users ALTER COLUMN role SET NOT NULL;

migrations/20250930181830_add_data_fields_to_users.sql

@@ -0,0 +1,4 @@
+ALTER TABLE users 
+ADD COLUMN full_name TEXT,
+ADD COLUMN bio TEXT,
+ADD COLUMN member_since TIMESTAMPTZ NOT NULL DEFAULT NOW();

migrations/20251001165158_create_comments_table.sql

@@ -0,0 +1,7 @@
+CREATE TABLE comments (
+    comment_id UUID PRIMARY KEY DEFAULT gen_random_uuid(),
+    post_id UUID NOT NULL REFERENCES posts (post_id) ON DELETE CASCADE,
+    author TEXT,
+    content TEXT NOT NULL,
+    published_at TIMESTAMPTZ NOT NULL DEFAULT NOW()
+);

migrations/20251005123442_remove_user_id_from_idempotency.sql

@@ -0,0 +1,11 @@
+ALTER TABLE idempotency
+    DROP CONSTRAINT idempotency_user_id_fkey;
+
+ALTER TABLE idempotency
+    DROP CONSTRAINT idempotency_pkey;
+
+ALTER TABLE idempotency
+    ADD PRIMARY KEY (idempotency_key);
+
+ALTER TABLE idempotency
+    DROP COLUMN user_id;

migrations/20251008112745_add_user_id_to_comments.sql

@@ -0,0 +1,3 @@
+ALTER TABLE comments
+ADD COLUMN user_id UUID
+REFERENCES users (user_id) ON DELETE SET NULL;

migrations/20251009173005_add_last_modified_to_posts.sql

@@ -0,0 +1,2 @@
+ALTER TABLE posts
+ADD COLUMN last_modified TIMESTAMPTZ;

migrations/20251009180347_create_user_logins_table.sql

@@ -0,0 +1,5 @@
+CREATE TABLE user_logins (
+    id BIGSERIAL PRIMARY KEY,
+    user_id UUID NOT NULL REFERENCES users (user_id) ON DELETE CASCADE,
+    login_time TIMESTAMPTZ NOT NULL DEFAULT NOW()
+);

package-lock.json

@@ -7,6 +7,9 @@
       "dependencies": {
         "@tailwindcss/cli": "^4.1.13",
         "tailwindcss": "^4.1.13"
+      },
+      "devDependencies": {
+        "@tailwindcss/typography": "^0.5.18"
       }
     },
     "node_modules/@isaacs/fs-minipass": {
@@ -636,6 +639,19 @@
         "node": ">=8"
       }
     },
+    "node_modules/@tailwindcss/typography": {
+      "version": "0.5.18",
+      "resolved": "https://registry.npmjs.org/@tailwindcss/typography/-/typography-0.5.18.tgz",
+      "integrity": "sha512-dDIgwZOlf+tVkZ7A029VvQ1+ngKATENDjMEx2N35s2yPjfTS05RWSM8ilhEWSa5DMJ6ci2Ha9WNZEd2GQjrdQg==",
+      "dev": true,
+      "license": "MIT",
+      "dependencies": {
+        "postcss-selector-parser": "6.0.10"
+      },
+      "peerDependencies": {
+        "tailwindcss": ">=3.0.0 || insiders || >=4.0.0-alpha.20 || >=4.0.0-beta.1"
+      }
+    },
     "node_modules/braces": {
       "version": "3.0.3",
       "resolved": "https://registry.npmjs.org/braces/-/braces-3.0.3.tgz",
@@ -657,6 +673,19 @@
         "node": ">=18"
       }
     },
+    "node_modules/cssesc": {
+      "version": "3.0.0",
+      "resolved": "https://registry.npmjs.org/cssesc/-/cssesc-3.0.0.tgz",
+      "integrity": "sha512-/Tb/JcjK111nNScGob5MNtsntNM1aCNUDipB/TkwZFhyDrrE47SOx/18wF2bbjgc3ZzCSKW1T5nt5EbFoAz/Vg==",
+      "dev": true,
+      "license": "MIT",
+      "bin": {
+        "cssesc": "bin/cssesc"
+      },
+      "engines": {
+        "node": ">=4"
+      }
+    },
     "node_modules/detect-libc": {
       "version": "1.0.3",
       "resolved": "https://registry.npmjs.org/detect-libc/-/detect-libc-1.0.3.tgz",
@@ -1067,6 +1096,20 @@
         "url": "https://github.com/sponsors/jonschlinkert"
       }
     },
+    "node_modules/postcss-selector-parser": {
+      "version": "6.0.10",
+      "resolved": "https://registry.npmjs.org/postcss-selector-parser/-/postcss-selector-parser-6.0.10.tgz",
+      "integrity": "sha512-IQ7TZdoaqbT+LCpShg46jnZVlhWD2w6iQYAcYXfHARZ7X1t/UGhhceQDs5X0cGqKvYlHNOuv7Oa1xmb0oQuA3w==",
+      "dev": true,
+      "license": "MIT",
+      "dependencies": {
+        "cssesc": "^3.0.0",
+        "util-deprecate": "^1.0.2"
+      },
+      "engines": {
+        "node": ">=4"
+      }
+    },
     "node_modules/source-map-js": {
       "version": "1.2.1",
       "resolved": "https://registry.npmjs.org/source-map-js/-/source-map-js-1.2.1.tgz",
@@ -1080,7 +1123,8 @@
       "version": "4.1.13",
       "resolved": "https://registry.npmjs.org/tailwindcss/-/tailwindcss-4.1.13.tgz",
       "integrity": "sha512-i+zidfmTqtwquj4hMEwdjshYYgMbOrPzb9a0M3ZgNa0JMoZeFC6bxZvO8yr8ozS6ix2SDz0+mvryPeBs2TFE+w==",
-      "license": "MIT"
+      "license": "MIT",
+      "peer": true
     },
     "node_modules/tapable": {
       "version": "2.2.3",
@@ -1124,6 +1168,13 @@
         "node": ">=8.0"
       }
     },
+    "node_modules/util-deprecate": {
+      "version": "1.0.2",
+      "resolved": "https://registry.npmjs.org/util-deprecate/-/util-deprecate-1.0.2.tgz",
+      "integrity": "sha512-EPD5q1uXyFxJpCrLnCc1nHnq3gOa6DZBocAIiI2TaSCA7VCJ1UJDMagCzIkXNsUYfD1daK//LTEQ8xiIbrHtcw==",
+      "dev": true,
+      "license": "MIT"
+    },
     "node_modules/yallist": {
       "version": "5.0.0",
       "resolved": "https://registry.npmjs.org/yallist/-/yallist-5.0.0.tgz",

package.json

@@ -1,9 +1,13 @@
 {
   "scripts": {
-    "build-css": "tailwindcss -i ./templates/input.css -o ./assets/css/main.css --minify --watch"
+    "build-css": "tailwindcss -i ./templates/input.css -o ./assets/css/main.css --minify",
+    "watch-css": "tailwindcss -i ./templates/input.css -o ./assets/css/main.css --watch"
   },
   "dependencies": {
     "@tailwindcss/cli": "^4.1.13",
     "tailwindcss": "^4.1.13"
+  },
+  "devDependencies": {
+    "@tailwindcss/typography": "^0.5.18"
   }
 }

scripts/init_db.sh

@@ -14,7 +14,7 @@ if ! [ -x "$(command -v sqlx)" ]; then
 fi
 
 DB_USER="${POSTGRES_USER:=postgres}"
-DB_PASSWORD="${POSTGRES_PASSWORD:=Jq09NF6Y8ZXJS4jd9c8U}"
+DB_PASSWORD="${POSTGRES_PASSWORD:=password}"
 DB_NAME="${POSTGRES_DB:=newsletter}"
 DB_PORT="${POSTGRES_PORT:=5432}"
 DB_HOST="${POSTGRES_HOST:=localhost}"

src/authentication.rs

@@ -1,14 +1,12 @@
-use crate::{
-    routes::AdminError, session_state::TypedSession, telemetry::spawn_blocking_with_tracing,
-};
+use crate::telemetry::spawn_blocking_with_tracing;
 use anyhow::Context;
 use argon2::{
     Algorithm, Argon2, Params, PasswordHash, PasswordHasher, PasswordVerifier, Version,
     password_hash::{SaltString, rand_core::OsRng},
 };
-use axum::{extract::Request, middleware::Next, response::Response};
 use secrecy::{ExposeSecret, SecretString};
 use sqlx::PgPool;
+use std::fmt::Display;
 use uuid::Uuid;
 
 pub struct Credentials {
@@ -22,8 +20,6 @@ pub enum AuthError {
     UnexpectedError(#[from] anyhow::Error),
     #[error("Invalid credentials.")]
     InvalidCredentials(#[source] anyhow::Error),
-    #[error("Not authenticated.")]
-    NotAuthenticated,
 }
 
 #[tracing::instrument(name = "Change password", skip(password, connection_pool))]
@@ -34,7 +30,7 @@ pub async fn change_password(
 ) -> Result<(), anyhow::Error> {
     let password_hash = spawn_blocking_with_tracing(move || compute_pasword_hash(password))
         .await?
-        .context("Failed to hash password")?;
+        .context("Failed to hash password.")?;
     sqlx::query!(
         "UPDATE users SET password_hash = $1 WHERE user_id = $2",
         password_hash.expose_secret(),
@@ -46,7 +42,7 @@ pub async fn change_password(
     Ok(())
 }
 
-fn compute_pasword_hash(password: SecretString) -> Result<SecretString, anyhow::Error> {
+pub(crate) fn compute_pasword_hash(password: SecretString) -> Result<SecretString, anyhow::Error> {
     let salt = SaltString::generate(&mut OsRng);
     let password_hash = Argon2::new(
         Algorithm::Argon2id,
@@ -58,48 +54,55 @@ fn compute_pasword_hash(password: SecretString) -> Result<SecretString, anyhow::
     Ok(SecretString::from(password_hash))
 }
 
-#[tracing::instrument(
-    name = "Validate credentials",
-    skip(username, password, connection_pool)
-)]
+#[tracing::instrument(name = "Validate credentials", skip_all)]
 pub async fn validate_credentials(
     Credentials { username, password }: Credentials,
     connection_pool: &PgPool,
-) -> Result<Uuid, AuthError> {
+) -> Result<(Uuid, Role), AuthError> {
     let mut user_id = None;
+    let mut role = None;
     let mut expected_password_hash = SecretString::from(
         "$argon2id$v=19$m=15000,t=2,p=1$\
 gZiV/M1gPc22ElAH/Jh1Hw$\
 CWOrkoo7oJBQ/iyh7uJ0LO2aLEfrHwTWllSAxT0zRno"
             .to_string(),
     );
-    if let Some((stored_user_id, stored_expected_password_hash)) =
+
+    if let Some((stored_user_id, stored_expected_password_hash, stored_role)) =
         get_stored_credentials(&username, connection_pool)
             .await
+            .context("Failed to retrieve credentials from database.")
             .map_err(AuthError::UnexpectedError)?
     {
         user_id = Some(stored_user_id);
+        role = Some(stored_role);
         expected_password_hash = stored_expected_password_hash;
     }
 
-    spawn_blocking_with_tracing(|| verify_password_hash(expected_password_hash, password))
+    let handle =
+        spawn_blocking_with_tracing(|| verify_password_hash(expected_password_hash, password));
+
+    let uuid = user_id
+        .ok_or_else(|| anyhow::anyhow!("Unknown username."))
+        .map_err(AuthError::InvalidCredentials)?;
+
+    let role = role
+        .ok_or_else(|| anyhow::anyhow!("Unknown role."))
+        .map_err(AuthError::UnexpectedError)?;
+
+    handle
         .await
         .context("Failed to spawn blocking task.")
-        .map_err(AuthError::UnexpectedError)??;
-
-    user_id
-        .ok_or_else(|| anyhow::anyhow!("Unknown username."))
+        .map_err(AuthError::UnexpectedError)?
         .map_err(AuthError::InvalidCredentials)
+        .map(|_| (uuid, role))
 }
 
-#[tracing::instrument(
-    name = "Verify password",
-    skip(expected_password_hash, password_candidate)
-)]
+#[tracing::instrument(name = "Verify password", skip_all)]
 fn verify_password_hash(
     expected_password_hash: SecretString,
     password_candidate: SecretString,
-) -> Result<(), AuthError> {
+) -> Result<(), anyhow::Error> {
     let expected_password_hash = PasswordHash::new(expected_password_hash.expose_secret())
         .context("Failed to parse hash in PHC string format.")?;
     Argon2::default()
@@ -108,56 +111,52 @@ fn verify_password_hash(
             &expected_password_hash,
         )
         .context("Password verification failed.")
-        .map_err(AuthError::InvalidCredentials)
 }
 
-#[tracing::instrument(name = "Get stored credentials", skip(username, connection_pool))]
+#[tracing::instrument(name = "Get stored credentials", skip(connection_pool))]
 async fn get_stored_credentials(
     username: &str,
     connection_pool: &PgPool,
-) -> Result<Option<(Uuid, SecretString)>, anyhow::Error> {
+) -> Result<Option<(Uuid, SecretString, Role)>, sqlx::Error> {
     let row = sqlx::query!(
         r#"
-        SELECT user_id, password_hash
+        SELECT user_id, password_hash, role as "role: Role"
         FROM users
         WHERE username = $1
         "#,
         username,
     )
     .fetch_optional(connection_pool)
-    .await
-    .context("Failed to perform a query to retrieve stored credentials.")?
-    .map(|row| (row.user_id, SecretString::from(row.password_hash)));
+    .await?
+    .map(|row| (row.user_id, SecretString::from(row.password_hash), row.role));
     Ok(row)
 }
 
-pub async fn require_auth(
-    session: TypedSession,
-    mut request: Request,
-    next: Next,
-) -> Result<Response, AdminError> {
-    let user_id = session
-        .get_user_id()
-        .await
-        .map_err(|e| AdminError::UnexpectedError(e.into()))?
-        .ok_or(AdminError::NotAuthenticated)?;
-    let username = session
-        .get_username()
-        .await
-        .map_err(|e| AdminError::UnexpectedError(e.into()))?
-        .ok_or(AdminError::UnexpectedError(anyhow::anyhow!(
-            "Could not find username in session."
-        )))?;
+#[derive(serde::Serialize, serde::Deserialize, Debug, Clone, Copy, PartialEq, Eq, sqlx::Type)]
+#[sqlx(type_name = "user_role", rename_all = "lowercase")]
+pub enum Role {
+    Admin,
+    Writer,
+}
 
-    request
-        .extensions_mut()
-        .insert(AuthenticatedUser { user_id, username });
-
-    Ok(next.run(request).await)
+impl Display for Role {
+    fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
+        match self {
+            Role::Admin => write!(f, "admin"),
+            Role::Writer => write!(f, "writer"),
+        }
+    }
 }
 
 #[derive(Clone)]
 pub struct AuthenticatedUser {
     pub user_id: Uuid,
     pub username: String,
+    pub role: Role,
+}
+
+impl AuthenticatedUser {
+    pub fn is_admin(&self) -> bool {
+        matches!(self.role, Role::Admin)
+    }
 }

src/configuration.rs

@@ -1,8 +1,13 @@
 use crate::domain::SubscriberEmail;
+use anyhow::Context;
 use secrecy::{ExposeSecret, SecretString};
 use serde::Deserialize;
 use serde_aux::field_attributes::deserialize_number_from_string;
 use sqlx::postgres::{PgConnectOptions, PgSslMode};
+use tower_sessions_redis_store::{
+    RedisStore,
+    fred::prelude::{ClientLike, Pool},
+};
 
 pub fn get_configuration() -> Result<Settings, config::ConfigError> {
     let base_path = std::env::current_dir().expect("Failed to determine the current directory");
@@ -60,8 +65,7 @@ pub struct Settings {
     pub application: ApplicationSettings,
     pub database: DatabaseSettings,
     pub email_client: EmailClientSettings,
-    pub redis_uri: SecretString,
-    pub require_tls: bool,
+    pub kv_store: RedisSettings,
 }
 
 #[derive(Clone, Deserialize)]
@@ -81,7 +85,7 @@ pub struct EmailClientSettings {
 }
 
 impl EmailClientSettings {
-    pub fn sender(&self) -> Result<SubscriberEmail, String> {
+    pub fn sender(&self) -> Result<SubscriberEmail, anyhow::Error> {
         SubscriberEmail::parse(self.sender_email.clone())
     }
 
@@ -101,6 +105,35 @@ impl EmailClientSettings {
     }
 }
 
+#[derive(Clone, Deserialize)]
+pub struct RedisSettings {
+    pub host: String,
+    pub port: u16,
+}
+
+impl RedisSettings {
+    pub fn connection_string(&self) -> String {
+        format!("redis://{}:{}", self.host, self.port)
+    }
+
+    pub async fn session_store(&self) -> Result<RedisStore<Pool>, anyhow::Error> {
+        let pool = Pool::new(
+            tower_sessions_redis_store::fred::prelude::Config::from_url(&self.connection_string())
+                .context("Failed to parse Redis URL string.")?,
+            None,
+            None,
+            None,
+            6,
+        )
+        .unwrap();
+        pool.connect();
+        pool.wait_for_connect()
+            .await
+            .context("Failed to connect to the Redis server.")?;
+        Ok(RedisStore::new(pool))
+    }
+}
+
 #[derive(Clone, Deserialize)]
 pub struct DatabaseSettings {
     pub username: String,
@@ -110,6 +143,7 @@ pub struct DatabaseSettings {
     pub host: String,
     pub database_name: String,
     pub require_ssl: bool,
+    pub timeout_milliseconds: u64,
 }
 
 impl DatabaseSettings {

src/database_worker.rs

@@ -0,0 +1,58 @@
+use anyhow::Context;
+use sqlx::{
+    PgPool,
+    postgres::{PgConnectOptions, PgPoolOptions},
+};
+use std::time::Duration;
+
+pub async fn run_until_stopped(configuration: PgConnectOptions) -> Result<(), anyhow::Error> {
+    let connection_pool = PgPoolOptions::new().connect_lazy_with(configuration);
+    worker_loop(connection_pool).await
+}
+
+async fn worker_loop(connection_pool: PgPool) -> Result<(), anyhow::Error> {
+    loop {
+        if let Err(e) = clean_pending_subscriptions(&connection_pool).await {
+            tracing::error!("{:?}", e);
+        }
+        if let Err(e) = clean_idempotency_keys(&connection_pool).await {
+            tracing::error!("{:?}", e);
+        }
+        tokio::time::sleep(Duration::from_secs(60)).await;
+    }
+}
+
+async fn clean_pending_subscriptions(connection_pool: &PgPool) -> Result<(), anyhow::Error> {
+    let result = sqlx::query!(
+        "
+        DELETE FROM subscriptions
+        WHERE status = 'pending_confirmation'
+        AND subscribed_at < NOW() - INTERVAL '24 hours'
+        "
+    )
+    .execute(connection_pool)
+    .await
+    .context("Failed to clean up subscriptions table.")?;
+    match result.rows_affected() {
+        n if n > 0 => tracing::info!("Cleaned up {} expired subscriptions.", n),
+        _ => (),
+    }
+    Ok(())
+}
+
+async fn clean_idempotency_keys(connection_pool: &PgPool) -> Result<(), anyhow::Error> {
+    let result = sqlx::query!(
+        "
+        DELETE FROM idempotency
+        WHERE created_at < NOW() - INTERVAL '1 hour'
+        "
+    )
+    .execute(connection_pool)
+    .await
+    .context("Failed to clean up idempontency table.")?;
+    match result.rows_affected() {
+        n if n > 0 => tracing::info!("Cleaned up {} old idempotency records.", n),
+        _ => (),
+    }
+    Ok(())
+}

src/domain.rs

@@ -1,5 +1,13 @@
+mod comment;
 mod new_subscriber;
+mod post;
 mod subscriber_email;
+mod subscribers;
+mod user;
 
+pub use comment::CommentEntry;
 pub use new_subscriber::NewSubscriber;
+pub use post::PostEntry;
 pub use subscriber_email::SubscriberEmail;
+pub use subscribers::SubscriberEntry;
+pub use user::UserEntry;

src/domain/comment.rs

@@ -0,0 +1,18 @@
+use chrono::{DateTime, Utc};
+use uuid::Uuid;
+
+pub struct CommentEntry {
+    pub user_id: Option<Uuid>,
+    pub username: Option<String>,
+    pub comment_id: Uuid,
+    pub post_id: Uuid,
+    pub author: Option<String>,
+    pub content: String,
+    pub published_at: DateTime<Utc>,
+}
+
+impl CommentEntry {
+    pub fn formatted_date(&self) -> String {
+        self.published_at.format("%B %d, %Y %H:%M").to_string()
+    }
+}

src/domain/post.rs

@@ -0,0 +1,26 @@
+use chrono::{DateTime, Utc};
+use uuid::Uuid;
+
+pub struct PostEntry {
+    pub post_id: Uuid,
+    pub author_id: Uuid,
+    pub author: String,
+    pub full_name: Option<String>,
+    pub title: String,
+    pub content: String,
+    pub published_at: DateTime<Utc>,
+    pub last_modified: Option<DateTime<Utc>>,
+}
+
+impl PostEntry {
+    pub fn formatted_date(&self) -> String {
+        self.published_at.format("%B %d, %Y %H:%M").to_string()
+    }
+
+    pub fn to_html(&self) -> anyhow::Result<String> {
+        match markdown::to_html_with_options(&self.content, &markdown::Options::gfm()) {
+            Ok(content) => Ok(content),
+            Err(e) => anyhow::bail!(e),
+        }
+    }
+}

src/domain/subscriber_email.rs

@@ -1,3 +1,5 @@
+use std::fmt::Display;
+
 use validator::Validate;
 
 #[derive(Debug, Validate)]
@@ -7,11 +9,11 @@ pub struct SubscriberEmail {
 }
 
 impl SubscriberEmail {
-    pub fn parse(email: String) -> Result<Self, String> {
+    pub fn parse(email: String) -> Result<Self, anyhow::Error> {
         let subscriber_email = SubscriberEmail { email };
-        subscriber_email
-            .validate()
-            .map_err(|_| format!("{} is not a valid email.", subscriber_email.email))?;
+        if subscriber_email.validate().is_err() {
+            anyhow::bail!("{} is not a valid email.", subscriber_email.email);
+        }
         Ok(subscriber_email)
     }
 }
@@ -22,6 +24,12 @@ impl AsRef<str> for SubscriberEmail {
     }
 }
 
+impl Display for SubscriberEmail {
+    fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
+        write!(f, "{}", self.email)
+    }
+}
+
 #[cfg(test)]
 mod tests {
     use super::SubscriberEmail;

src/domain/subscribers.rs

@@ -0,0 +1,21 @@
+use chrono::{DateTime, Utc};
+use uuid::Uuid;
+
+pub struct SubscriberEntry {
+    pub id: Uuid,
+    pub email: String,
+    pub subscribed_at: DateTime<Utc>,
+    pub status: String,
+    pub unsubscribe_token: Option<String>,
+}
+
+impl SubscriberEntry {
+    pub fn confirmed(&self) -> bool {
+        self.status == "confirmed"
+    }
+
+    #[allow(dead_code)]
+    pub fn formatted_date(&self) -> String {
+        self.subscribed_at.format("%B %d, %Y").to_string()
+    }
+}

src/domain/user.rs

@@ -0,0 +1,22 @@
+use crate::authentication::Role;
+use chrono::{DateTime, Utc};
+use uuid::Uuid;
+
+pub struct UserEntry {
+    pub user_id: Uuid,
+    pub username: String,
+    pub role: Role,
+    pub full_name: Option<String>,
+    pub bio: Option<String>,
+    pub member_since: DateTime<Utc>,
+}
+
+impl UserEntry {
+    pub fn formatted_date(&self) -> String {
+        self.member_since.format("%B %d, %Y").to_string()
+    }
+
+    pub fn is_admin(&self) -> bool {
+        matches!(self.role, Role::Admin)
+    }
+}

src/email_client.rs

@@ -33,12 +33,8 @@ impl EmailClient {
     ) -> Result<(), reqwest::Error> {
         let url = self.base_url.join("email").unwrap();
         let request_body = SendEmailRequest {
-            from: EmailField {
-                email: self.sender.as_ref(),
-            },
-            to: vec![EmailField {
-                email: recipient.as_ref(),
-            }],
+            from: self.sender.as_ref(),
+            to: recipient.as_ref(),
             subject,
             text: text_content,
             html: html_content,
@@ -61,18 +57,13 @@ impl EmailClient {
 
 #[derive(serde::Serialize)]
 struct SendEmailRequest<'a> {
-    from: EmailField<'a>,
-    to: Vec<EmailField<'a>>,
+    from: &'a str,
+    to: &'a str,
     subject: &'a str,
     text: &'a str,
     html: &'a str,
 }
 
-#[derive(serde::Serialize)]
-struct EmailField<'a> {
-    email: &'a str,
-}
-
 #[cfg(test)]
 mod tests {
     use crate::{
@@ -128,7 +119,7 @@ mod tests {
         EmailClient::build(settings).unwrap()
     }
 
-    #[tokio::test]
+    #[sqlx::test]
     async fn send_email_sends_the_expected_request() {
         let mock_server = MockServer::start().await;
         let email_client = email_client(mock_server.uri());
@@ -150,7 +141,7 @@ mod tests {
             .unwrap();
     }
 
-    #[tokio::test]
+    #[sqlx::test]
     async fn send_email_succeeds_if_the_server_returns_200() {
         let mock_server = MockServer::start().await;
         let email_client = email_client(mock_server.uri());
@@ -168,7 +159,7 @@ mod tests {
         assert_ok!(response);
     }
 
-    #[tokio::test]
+    #[sqlx::test]
     async fn send_email_fails_if_the_server_retuns_500() {
         let mock_server = MockServer::start().await;
         let email_client = email_client(mock_server.uri());
@@ -186,7 +177,7 @@ mod tests {
         assert_err!(response);
     }
 
-    #[tokio::test]
+    #[sqlx::test]
     async fn send_email_times_out_if_the_server_takes_too_long() {
         let mock_server = MockServer::start().await;
         let email_client = email_client(mock_server.uri());

src/idempotency/key.rs

@@ -1,3 +1,4 @@
+#[derive(Debug)]
 pub struct IdempotencyKey(String);
 
 impl TryFrom<String> for IdempotencyKey {

src/idempotency/persistance.rs

@@ -7,7 +7,6 @@ use axum::{
 use reqwest::StatusCode;
 use sqlx::{Executor, PgPool, Postgres, Transaction};
 use std::str::FromStr;
-use uuid::Uuid;
 
 #[derive(Debug, sqlx::Type)]
 #[sqlx(type_name = "header_pair")]
@@ -16,10 +15,13 @@ struct HeaderPairRecord {
     value: Vec<u8>,
 }
 
+#[tracing::instrument(
+    name = "Fetching saved response in database if it exists",
+    skip(connection_pool)
+)]
 pub async fn get_saved_response(
     connection_pool: &PgPool,
     idempotency_key: &IdempotencyKey,
-    user_id: Uuid,
 ) -> Result<Option<Response>, anyhow::Error> {
     let saved_response = sqlx::query!(
         r#"
@@ -28,11 +30,8 @@ pub async fn get_saved_response(
             response_headers as "response_headers!: Vec<HeaderPairRecord>",
             response_body as "response_body!"
         FROM idempotency
-        WHERE
-            user_id = $1
-            AND idempotency_key = $2
+        WHERE idempotency_key = $1
         "#,
-        user_id,
         idempotency_key.as_ref()
     )
     .fetch_optional(connection_pool)
@@ -53,10 +52,10 @@ pub async fn get_saved_response(
     }
 }
 
+#[tracing::instrument(name = "Saving response in database", skip(transaction, response))]
 pub async fn save_response(
     mut transaction: Transaction<'static, Postgres>,
     idempotency_key: &IdempotencyKey,
-    user_id: Uuid,
     response: Response<Body>,
 ) -> Result<Response<Body>, anyhow::Error> {
     let status_code = response.status().as_u16() as i16;
@@ -75,14 +74,11 @@ pub async fn save_response(
         r#"
         UPDATE idempotency
         SET
-            response_status_code = $3,
-            response_headers = $4,
-            response_body = $5
-        WHERE
-            user_id = $1
-            AND idempotency_key = $2
+            response_status_code = $2,
+            response_headers = $3,
+            response_body = $4
+        WHERE idempotency_key = $1
         "#,
-        user_id,
         idempotency_key.as_ref(),
         status_code,
         headers,
@@ -104,23 +100,21 @@ pub enum NextAction {
 pub async fn try_processing(
     connection_pool: &PgPool,
     idempotency_key: &IdempotencyKey,
-    user_id: Uuid,
 ) -> Result<NextAction, anyhow::Error> {
     let mut transaction = connection_pool.begin().await?;
     let query = sqlx::query!(
         r#"
-        INSERT INTO idempotency (user_id, idempotency_key, created_at)
-        VALUES ($1, $2, now())
+        INSERT INTO idempotency (idempotency_key, created_at)
+        VALUES ($1, now())
         ON CONFLICT DO NOTHING
         "#,
-        user_id,
         idempotency_key.as_ref()
     );
     let n_inserted_rows = transaction.execute(query).await?.rows_affected();
     if n_inserted_rows > 0 {
         Ok(NextAction::StartProcessing(transaction))
     } else {
-        let saved_response = get_saved_response(connection_pool, idempotency_key, user_id)
+        let saved_response = get_saved_response(connection_pool, idempotency_key)
             .await?
             .ok_or_else(|| anyhow::anyhow!("Could not find saved response."))?;
         Ok(NextAction::ReturnSavedResponse(saved_response))

src/issue_delivery_worker.rs

@@ -1,10 +1,13 @@
-use crate::{configuration::Settings, domain::SubscriberEmail, email_client::EmailClient};
+use crate::{
+    configuration::Settings, domain::SubscriberEmail, email_client::EmailClient, routes::EmailType,
+};
+use anyhow::Context;
 use sqlx::{Executor, PgPool, Postgres, Row, Transaction, postgres::PgPoolOptions};
 use std::time::Duration;
 use tracing::{Span, field::display};
 use uuid::Uuid;
 
-pub async fn run_worker_until_stopped(configuration: Settings) -> Result<(), anyhow::Error> {
+pub async fn run_until_stopped(configuration: Settings) -> Result<(), anyhow::Error> {
     let connection_pool = PgPoolOptions::new().connect_lazy_with(configuration.database.with_db());
     let email_client = EmailClient::build(configuration.email_client).unwrap();
     worker_loop(connection_pool, email_client).await
@@ -28,63 +31,82 @@ pub enum ExecutionOutcome {
     EmptyQueue,
 }
 
-#[tracing::instrument(
-    skip_all,
-    fields(
-        newsletter_issue_id=tracing::field::Empty,
-        subscriber_email=tracing::field::Empty
-    ),
-    err
-)]
 pub async fn try_execute_task(
     connection_pool: &PgPool,
     email_client: &EmailClient,
 ) -> Result<ExecutionOutcome, anyhow::Error> {
     let task = dequeue_task(connection_pool).await?;
-    if task.is_none() {
-        return Ok(ExecutionOutcome::EmptyQueue);
-    }
-    let (transaction, issue_id, email) = task.unwrap();
+    let (mut transaction, task) = match task {
+        Some((transaction, task)) => (transaction, task),
+        None => return Ok(ExecutionOutcome::EmptyQueue),
+    };
     Span::current()
-        .record("newsletter_issue_id", display(issue_id))
-        .record("subscriber_email", display(&email));
-    match SubscriberEmail::parse(email.clone()) {
+        .record("newsletter_issue_id", display(task.newsletter_issue_id))
+        .record("subscriber_email", display(&task.subscriber_email));
+    match SubscriberEmail::parse(task.subscriber_email.clone()) {
         Ok(email) => {
-            let issue = get_issue(connection_pool, issue_id).await?;
-            if let Err(e) = email_client
-                .send_email(
-                    &email,
-                    &issue.title,
-                    &issue.html_content,
-                    &issue.text_content,
+            execute_task(
+                connection_pool,
+                &mut transaction,
+                &task,
+                email,
+                email_client,
             )
-                .await
-            {
-                tracing::error!(
-                    error.message = %e,
-                    "Failed to deliver issue to confirmed subscriber. Skipping."
-                );
-            }
+            .await?;
         }
         Err(e) => {
             tracing::error!(
-                error.message = %e,
+                error = %e,
                 "Skipping a subscriber. Their stored contact details are invalid."
             );
         }
     }
-    delete_task(transaction, issue_id, &email).await?;
+    delete_task(
+        transaction,
+        task.newsletter_issue_id,
+        &task.subscriber_email,
+    )
+    .await?;
 
     Ok(ExecutionOutcome::TaskCompleted)
 }
 
 struct NewsletterIssue {
+    newsletter_issue_id: Uuid,
     title: String,
     text_content: String,
     html_content: String,
 }
 
-#[tracing::instrument(skip_all)]
+impl NewsletterIssue {
+    fn inject_unsubscribe_token(&mut self, token: &str) {
+        self.text_content = self.text_content.replace("UNSUBSCRIBE_TOKEN", token);
+        self.html_content = self.html_content.replace("UNSUBSCRIBE_TOKEN", token);
+    }
+
+    async fn inject_tracking_info(
+        &mut self,
+        transaction: &mut Transaction<'static, Postgres>,
+    ) -> Result<(), anyhow::Error> {
+        let email_id = Uuid::new_v4();
+        let query = sqlx::query!(
+            r#"
+            INSERT INTO notifications_delivered (email_id, newsletter_issue_id)
+            VALUES ($1, $2)
+            "#,
+            email_id,
+            self.newsletter_issue_id
+        );
+        transaction
+            .execute(query)
+            .await
+            .context("Failed to store email tracking info.")?;
+        self.text_content = self.text_content.replace("EMAIL_ID", &email_id.to_string());
+        self.html_content = self.html_content.replace("EMAIL_ID", &email_id.to_string());
+        Ok(())
+    }
+}
+
 async fn get_issue(
     connection_pool: &PgPool,
     issue_id: Uuid,
@@ -92,7 +114,7 @@ async fn get_issue(
     let issue = sqlx::query_as!(
         NewsletterIssue,
         r#"
-        SELECT title, text_content, html_content
+        SELECT newsletter_issue_id, title, text_content, html_content
         FROM newsletter_issues
         WHERE newsletter_issue_id = $1
         "#,
@@ -103,14 +125,20 @@ async fn get_issue(
     Ok(issue)
 }
 
-#[tracing::instrument(skip_all)]
+pub struct Task {
+    pub newsletter_issue_id: Uuid,
+    pub subscriber_email: String,
+    pub unsubscribe_token: String,
+    pub kind: String,
+}
+
 async fn dequeue_task(
     connection_pool: &PgPool,
-) -> Result<Option<(Transaction<'static, Postgres>, Uuid, String)>, anyhow::Error> {
+) -> Result<Option<(Transaction<'static, Postgres>, Task)>, anyhow::Error> {
     let mut transaction = connection_pool.begin().await?;
     let query = sqlx::query!(
         r#"
-        SELECT newsletter_issue_id, subscriber_email
+        SELECT newsletter_issue_id, subscriber_email, unsubscribe_token, kind
         FROM issue_delivery_queue
         FOR UPDATE
         SKIP LOCKED
@@ -119,17 +147,47 @@ async fn dequeue_task(
     );
     let r = transaction.fetch_optional(query).await?;
     if let Some(row) = r {
-        Ok(Some((
-            transaction,
-            row.get("newsletter_issue_id"),
-            row.get("subscriber_email"),
-        )))
+        let task = Task {
+            newsletter_issue_id: row.get("newsletter_issue_id"),
+            subscriber_email: row.get("subscriber_email"),
+            unsubscribe_token: row.get("unsubscribe_token"),
+            kind: row.get("kind"),
+        };
+        Ok(Some((transaction, task)))
     } else {
         Ok(None)
     }
 }
 
-#[tracing::instrument(skip_all)]
+#[tracing::instrument(
+    name = "Executing task",
+    skip_all,
+    fields(email = %email),
+)]
+async fn execute_task(
+    connection_pool: &PgPool,
+    transaction: &mut Transaction<'static, Postgres>,
+    task: &Task,
+    email: SubscriberEmail,
+    email_client: &EmailClient,
+) -> Result<(), anyhow::Error> {
+    let mut issue = get_issue(connection_pool, task.newsletter_issue_id).await?;
+    issue.inject_unsubscribe_token(&task.unsubscribe_token);
+    if task.kind == EmailType::NewPost.to_string() {
+        issue.inject_tracking_info(transaction).await?;
+    }
+    email_client
+        .send_email(
+            &email,
+            &issue.title,
+            &issue.html_content,
+            &issue.text_content,
+        )
+        .await
+        .context("Failed to deliver newsletter issue to subscriber..")?;
+    Ok(())
+}
+
 async fn delete_task(
     mut transaction: Transaction<'static, Postgres>,
     issue_id: Uuid,

src/lib.rs

@@ -1,5 +1,6 @@
 pub mod authentication;
 pub mod configuration;
+pub mod database_worker;
 pub mod domain;
 pub mod email_client;
 pub mod idempotency;

src/main.rs

@@ -1,6 +1,6 @@
 use zero2prod::{
-    configuration::get_configuration, issue_delivery_worker::run_worker_until_stopped,
-    startup::Application, telemetry::init_subscriber,
+    configuration::get_configuration, database_worker, issue_delivery_worker, startup::Application,
+    telemetry::init_subscriber,
 };
 
 #[tokio::main]
@@ -11,11 +11,16 @@ async fn main() -> Result<(), anyhow::Error> {
     let application = Application::build(configuration.clone()).await?;
 
     let application_task = tokio::spawn(application.run_until_stopped());
-    let worker_task = tokio::spawn(run_worker_until_stopped(configuration));
+    let database_worker_task = tokio::spawn(database_worker::run_until_stopped(
+        configuration.database.with_db(),
+    ));
+    let delivery_worker_task =
+        tokio::spawn(issue_delivery_worker::run_until_stopped(configuration));
 
     tokio::select! {
         _ = application_task => {},
-        _ = worker_task => {},
+        _ = database_worker_task => {},
+        _ = delivery_worker_task => {},
     };
 
     Ok(())

src/routes.rs

@@ -1,30 +1,229 @@
 mod admin;
+mod comments;
 mod health_check;
 mod home;
 mod login;
 mod posts;
 mod subscriptions;
 mod subscriptions_confirm;
+mod unsubscribe;
+mod users;
 
 pub use admin::*;
 use askama::Template;
-use axum::response::{Html, IntoResponse, Response};
+use axum::{
+    extract::FromRequestParts,
+    http::{HeaderMap, request::Parts},
+    response::{Html, IntoResponse, Response},
+};
+pub use comments::*;
 pub use health_check::*;
 pub use home::*;
 pub use login::*;
 pub use posts::*;
+use rand::{Rng, distr::Alphanumeric};
 use reqwest::StatusCode;
+use serde::de::DeserializeOwned;
 pub use subscriptions::*;
 pub use subscriptions_confirm::*;
+pub use unsubscribe::*;
+pub use users::*;
+use validator::ValidationErrors;
 
-#[derive(Template)]
-#[template(path = "../templates/404.html")]
-struct NotFoundTemplate;
+use crate::{
+    authentication::AuthError,
+    templates::{ErrorTemplate, HtmlTemplate, MessageTemplate},
+};
+
+pub fn generate_token() -> String {
+    let mut rng = rand::rng();
+    std::iter::repeat_with(|| rng.sample(Alphanumeric))
+        .map(char::from)
+        .take(25)
+        .collect()
+}
+
+fn error_chain_fmt(e: &impl std::error::Error, f: &mut std::fmt::Formatter) -> std::fmt::Result {
+    writeln!(f, "{}", e)?;
+    let mut current = e.source();
+    while let Some(cause) = current {
+        write!(f, "Caused by:\n\t{}", cause)?;
+        current = cause.source();
+        if current.is_some() {
+            writeln!(f)?;
+        }
+    }
+    Ok(())
+}
+
+#[derive(thiserror::Error)]
+pub enum AppError {
+    #[error("An unexpected error was encountered.")]
+    UnexpectedError {
+        #[source]
+        error: anyhow::Error,
+        full_page: bool,
+    },
+    #[error("A validation error happened.")]
+    FormError(#[source] anyhow::Error),
+    #[error("Authentication is required.")]
+    NotAuthenticated,
+    #[error("Handler extractor failed.")]
+    Extractor(#[source] anyhow::Error),
+}
+
+impl From<anyhow::Error> for AppError {
+    fn from(value: anyhow::Error) -> Self {
+        Self::UnexpectedError {
+            error: value,
+            full_page: false,
+        }
+    }
+}
+
+impl AppError {
+    pub fn unexpected_page(error: anyhow::Error) -> Self {
+        Self::UnexpectedError {
+            error,
+            full_page: true,
+        }
+    }
+
+    pub fn unexpected_message(error: anyhow::Error) -> Self {
+        Self::UnexpectedError {
+            error,
+            full_page: false,
+        }
+    }
+}
+
+impl std::fmt::Debug for AppError {
+    fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
+        error_chain_fmt(self, f)
+    }
+}
+
+impl IntoResponse for AppError {
+    fn into_response(self) -> Response {
+        tracing::error!("{:?}", self);
+
+        match &self {
+            AppError::UnexpectedError {
+                error: _,
+                full_page,
+            } => {
+                let html = if *full_page {
+                    Html(ErrorTemplate::InternalServer.render().unwrap())
+                } else {
+                    let template =
+                        MessageTemplate::error("An internal server error occured.".into());
+                    Html(template.render().unwrap())
+                };
+                html.into_response()
+            }
+            AppError::FormError(error) => {
+                let template = MessageTemplate::error(error.to_string());
+                Html(template.render().unwrap()).into_response()
+            }
+            AppError::NotAuthenticated => {
+                let mut headers = HeaderMap::new();
+                headers.insert("HX-Redirect", "/login".parse().unwrap());
+                (StatusCode::OK, headers).into_response()
+            }
+            AppError::Extractor(_) => not_found_html(),
+        }
+    }
+}
+
+impl From<AdminError> for AppError {
+    fn from(value: AdminError) -> Self {
+        match value {
+            AdminError::UnexpectedError(error) => AppError::unexpected_message(error),
+            AdminError::NotAuthenticated => AppError::NotAuthenticated,
+            AdminError::ChangePassword(s) => AppError::FormError(anyhow::anyhow!(s)),
+            AdminError::Publish(e) => AppError::FormError(e),
+            AdminError::Idempotency(s) => AppError::UnexpectedError {
+                error: anyhow::anyhow!(s),
+                full_page: false,
+            },
+        }
+    }
+}
+
+impl From<AuthError> for AppError {
+    fn from(value: AuthError) -> Self {
+        match value {
+            AuthError::UnexpectedError(error) => AppError::unexpected_message(error),
+            AuthError::InvalidCredentials(error) => {
+                AppError::FormError(error.context("Invalid credentials."))
+            }
+        }
+    }
+}
 
 pub async fn not_found() -> Response {
-    (
-        StatusCode::NOT_FOUND,
-        Html(NotFoundTemplate.render().unwrap()),
-    )
-        .into_response()
+    tracing::error!("Not found.");
+    not_found_html()
+}
+
+pub fn not_found_html() -> Response {
+    let template = HtmlTemplate(ErrorTemplate::NotFound);
+    (StatusCode::NOT_FOUND, template).into_response()
+}
+
+pub struct Path<T>(T);
+
+impl<T, S> FromRequestParts<S> for Path<T>
+where
+    T: DeserializeOwned + Send,
+    S: Send + Sync,
+{
+    type Rejection = AppError;
+
+    async fn from_request_parts(parts: &mut Parts, state: &S) -> Result<Self, Self::Rejection> {
+        match axum::extract::Path::<T>::from_request_parts(parts, state).await {
+            Ok(value) => Ok(Self(value.0)),
+            Err(rejection) => Err(AppError::Extractor(anyhow::anyhow!(
+                "Path rejection: {:?}",
+                rejection
+            ))),
+        }
+    }
+}
+
+pub struct Query<T>(pub T);
+
+impl<T, S> FromRequestParts<S> for Query<T>
+where
+    T: DeserializeOwned,
+    S: Send + Sync,
+{
+    type Rejection = AppError;
+
+    async fn from_request_parts(parts: &mut Parts, state: &S) -> Result<Self, Self::Rejection> {
+        match axum::extract::Query::<T>::from_request_parts(parts, state).await {
+            Ok(value) => Ok(Self(value.0)),
+            Err(rejection) => Err(AppError::Extractor(anyhow::anyhow!(
+                "Query rejection: {:?}",
+                rejection
+            ))),
+        }
+    }
+}
+
+pub fn join_error_messages(e: ValidationErrors) -> String {
+    let error_messages: Vec<_> = e
+        .field_errors()
+        .iter()
+        .flat_map(|(field, errors)| {
+            errors.iter().map(move |error| {
+                error
+                    .message
+                    .as_ref()
+                    .map(|msg| msg.to_string())
+                    .unwrap_or(format!("Invalid field: {}", field))
+            })
+        })
+        .collect();
+    error_messages.join("\n")
 }

src/routes/admin.rs

@@ -3,29 +3,36 @@ mod dashboard;
 mod logout;
 mod newsletters;
 mod posts;
+mod subscribers;
 
-use crate::{routes::error_chain_fmt, templates::ErrorTemplate};
-use askama::Template;
+use crate::{
+    authentication::AuthenticatedUser,
+    routes::{AppError, error_chain_fmt},
+    session_state::TypedSession,
+    templates::{HtmlTemplate, MessageTemplate},
+};
+use anyhow::Context;
+use axum::response::Redirect;
 use axum::{
-    Json,
-    http::HeaderMap,
-    response::{Html, IntoResponse, Response},
+    extract::Request,
+    middleware::Next,
+    response::{IntoResponse, Response},
 };
 pub use change_password::*;
 pub use dashboard::*;
 pub use logout::*;
 pub use newsletters::*;
 pub use posts::*;
-use reqwest::StatusCode;
+pub use subscribers::*;
 
 #[derive(thiserror::Error)]
 pub enum AdminError {
-    #[error("Something went wrong.")]
+    #[error("Something went wrong while performing an admin action.")]
     UnexpectedError(#[from] anyhow::Error),
     #[error("Trying to access admin dashboard without authentication.")]
     NotAuthenticated,
     #[error("Updating password failed.")]
-    ChangePassword(String),
+    ChangePassword(anyhow::Error),
     #[error("Could not publish newsletter.")]
     Publish(#[source] anyhow::Error),
     #[error("The idempotency key was invalid.")]
@@ -38,44 +45,59 @@ impl std::fmt::Debug for AdminError {
     }
 }
 
-impl IntoResponse for AdminError {
-    fn into_response(self) -> Response {
-        #[derive(serde::Serialize)]
-        struct ErrorResponse<'a> {
-            message: &'a str,
+pub async fn require_auth(
+    session: TypedSession,
+    mut request: Request,
+    next: Next,
+) -> Result<Response, AppError> {
+    let user_id = match session
+        .get_user_id()
+        .await
+        .map_err(|e| AdminError::UnexpectedError(e.into()))?
+    {
+        None => {
+            tracing::error!("Not authenticated. Redirecting to /login.");
+            return Ok(Redirect::to("/login").into_response());
         }
-
-        tracing::error!("{:?}", self);
-
-        match &self {
-            AdminError::UnexpectedError(_) => (
-                StatusCode::INTERNAL_SERVER_ERROR,
-                Json(ErrorResponse {
-                    message: "An internal server error occured.",
-                }),
-            )
-                .into_response(),
-            AdminError::NotAuthenticated => {
-                let mut headers = HeaderMap::new();
-                headers.insert("HX-Redirect", "/login".parse().unwrap());
-                headers.insert("Location", "/login".parse().unwrap());
-                (StatusCode::SEE_OTHER, headers).into_response()
-            }
-            AdminError::ChangePassword(e) => {
-                let template = ErrorTemplate {
-                    error_message: e.to_owned(),
+        Some(user_id) => user_id,
     };
-                Html(template.render().unwrap()).into_response()
-            }
-            AdminError::Publish(e) => {
-                let template = ErrorTemplate {
-                    error_message: e.to_string(),
-                };
-                Html(template.render().unwrap()).into_response()
-            }
-            AdminError::Idempotency(e) => {
-                (StatusCode::BAD_REQUEST, Json(ErrorResponse { message: e })).into_response()
-            }
-        }
+    let username = session
+        .get_username()
+        .await
+        .map_err(|e| AdminError::UnexpectedError(e.into()))?
+        .ok_or(AdminError::UnexpectedError(anyhow::anyhow!(
+            "Could not find username in session."
+        )))?;
+    let role = session
+        .get_role()
+        .await
+        .context("Error retrieving user role in session.")?
+        .ok_or(anyhow::anyhow!("Could not find user role in session."))?;
+
+    request.extensions_mut().insert(AuthenticatedUser {
+        user_id,
+        username,
+        role,
+    });
+
+    Ok(next.run(request).await)
+}
+
+pub async fn require_admin(
+    session: TypedSession,
+    request: Request,
+    next: Next,
+) -> Result<Response, AppError> {
+    if session
+        .has_admin_permissions()
+        .await
+        .context("Error retrieving user role in session.")?
+    {
+        Ok(next.run(request).await)
+    } else {
+        Ok(HtmlTemplate(MessageTemplate::error(
+            "This action requires administrator privileges.".into(),
+        ))
+        .into_response())
     }
 }

src/routes/admin/change_password.rs

@@ -1,8 +1,8 @@
 use crate::{
-    authentication::{self, AuthenticatedUser, Credentials, validate_credentials},
-    routes::AdminError,
+    authentication::{self, AuthError, AuthenticatedUser, Credentials, validate_credentials},
+    routes::{AdminError, AppError},
     startup::AppState,
-    templates::SuccessTemplate,
+    templates::MessageTemplate,
 };
 use askama::Template;
 use axum::{
@@ -20,43 +20,45 @@ pub struct PasswordFormData {
 }
 
 pub async fn change_password(
-    Extension(AuthenticatedUser { user_id, username }): Extension<AuthenticatedUser>,
+    Extension(AuthenticatedUser {
+        user_id, username, ..
+    }): Extension<AuthenticatedUser>,
     State(AppState {
         connection_pool, ..
     }): State<AppState>,
     Form(form): Form<PasswordFormData>,
-) -> Result<Response, AdminError> {
+) -> Result<Response, AppError> {
     let credentials = Credentials {
         username,
         password: form.current_password,
     };
     if form.new_password.expose_secret() != form.new_password_check.expose_secret() {
-        Err(AdminError::ChangePassword(
-            "You entered two different passwords - the field values must match.".to_string(),
+        Err(AdminError::ChangePassword(anyhow::anyhow!(
+            "You entered two different passwords - the field values must match."
         ))
-    } else if validate_credentials(credentials, &connection_pool)
-        .await
-        .is_err()
-    {
-        Err(AdminError::ChangePassword(
-            "The current password is incorrect.".to_string(),
+        .into())
+    } else if let Err(e) = validate_credentials(credentials, &connection_pool).await {
+        match e {
+            AuthError::UnexpectedError(error) => Err(AdminError::UnexpectedError(error).into()),
+            AuthError::InvalidCredentials(_) => Err(AdminError::ChangePassword(anyhow::anyhow!(
+                "The current password is incorrect."
             ))
+            .into()),
+        }
     } else if let Err(e) = verify_password(form.new_password.expose_secret()) {
-        Err(AdminError::ChangePassword(e))
+        Err(AdminError::ChangePassword(e).into())
     } else {
         authentication::change_password(user_id, form.new_password, &connection_pool)
             .await
-            .map_err(|e| AdminError::ChangePassword(e.to_string()))?;
-        let template = SuccessTemplate {
-            success_message: "Your password has been changed.".to_string(),
-        };
+            .map_err(AdminError::ChangePassword)?;
+        let template = MessageTemplate::success("Your password has been changed.".to_string());
         Ok(Html(template.render().unwrap()).into_response())
     }
 }
 
-fn verify_password(password: &str) -> Result<(), String> {
+pub fn verify_password(password: &str) -> Result<(), anyhow::Error> {
     if password.len() < 12 || password.len() > 128 {
-        return Err("The password must contain between 12 and 128 characters.".into());
+        anyhow::bail!("The password must contain between 12 and 128 characters.");
     }
     Ok(())
 }

src/routes/admin/dashboard.rs

@@ -1,28 +1,133 @@
-use crate::authentication::AuthenticatedUser;
+use crate::routes::{
+    COMMENTS_PER_PAGE, POSTS_PER_PAGE, SUBS_PER_PAGE, get_comments_count, get_comments_page,
+    get_posts_count, get_posts_page, get_users,
+};
+use crate::{
+    authentication::AuthenticatedUser,
+    routes::{AppError, get_max_page, get_subs, get_total_subs},
+    startup::AppState,
+    templates::DashboardTemplate,
+};
+use anyhow::Context;
 use askama::Template;
 use axum::{
     Extension,
+    extract::State,
     response::{Html, IntoResponse, Response},
 };
+use sqlx::PgPool;
 use uuid::Uuid;
 
-#[derive(Template)]
-#[template(path = "../templates/dashboard.html")]
-struct DashboardTemplate {
-    username: String,
-    idempotency_key_1: String,
-    idempotency_key_2: String,
+pub struct DashboardStats {
+    pub subscribers: i64,
+    pub posts: i64,
+    pub notifications_sent: i64,
+    pub open_rate: f64,
+}
+
+impl DashboardStats {
+    pub fn formatted_rate(&self) -> String {
+        format!("{:.1}%", self.open_rate)
+    }
 }
 
 pub async fn admin_dashboard(
-    Extension(AuthenticatedUser { username, .. }): Extension<AuthenticatedUser>,
-) -> Response {
+    State(AppState {
+        connection_pool, ..
+    }): State<AppState>,
+    Extension(user): Extension<AuthenticatedUser>,
+) -> Result<Response, AppError> {
+    let stats = get_stats(&connection_pool).await?;
     let idempotency_key_1 = Uuid::new_v4().to_string();
     let idempotency_key_2 = Uuid::new_v4().to_string();
+    let current_page = 1;
+    let subscribers = get_subs(&connection_pool, current_page)
+        .await
+        .context("Could not fetch subscribers from database.")
+        .map_err(AppError::unexpected_message)?;
+    let subs_count = get_total_subs(&connection_pool)
+        .await
+        .context("Could not fetch total subscribers count from the database.")?;
+    let max_page = get_max_page(subs_count, SUBS_PER_PAGE);
+    let users = get_users(&connection_pool)
+        .await
+        .context("Could not fetch users")?;
+    let posts = get_posts_page(&connection_pool, 1)
+        .await
+        .context("Could not fetch posts.")?;
+    let posts_current_page = 1;
+    let posts_count = get_posts_count(&connection_pool)
+        .await
+        .context("Could not fetch posts count.")?;
+    let posts_max_page = get_max_page(posts_count, POSTS_PER_PAGE);
+    let comments_current_page = 1;
+    let comments = get_comments_page(&connection_pool, comments_current_page)
+        .await
+        .context("Could not fetch comments.")?;
+    let comments_count = get_comments_count(&connection_pool)
+        .await
+        .context("Could not fetch comments count.")?;
+    let comments_max_page = get_max_page(comments_count, COMMENTS_PER_PAGE);
     let template = DashboardTemplate {
-        username,
+        user,
         idempotency_key_1,
         idempotency_key_2,
+        stats,
+        subscribers,
+        current_page,
+        max_page,
+        count: subs_count,
+        users,
+        posts,
+        posts_current_page,
+        posts_max_page,
+        posts_count,
+        comments,
+        comments_current_page,
+        comments_max_page,
+        comments_count,
     };
-    Html(template.render().unwrap()).into_response()
+    Ok(Html(template.render().unwrap()).into_response())
+}
+
+#[tracing::instrument("Computing dashboard stats", skip_all)]
+async fn get_stats(connection_pool: &PgPool) -> Result<DashboardStats, anyhow::Error> {
+    let subscribers =
+        sqlx::query_scalar!("SELECT count(*) FROM subscriptions WHERE status = 'confirmed'")
+            .fetch_one(connection_pool)
+            .await
+            .context("Failed to fetch subscribers count.")?
+            .unwrap_or(0);
+
+    let posts = sqlx::query_scalar!("SELECT count(*) FROM posts")
+        .fetch_one(connection_pool)
+        .await
+        .context("Failed to fetch posts count.")?
+        .unwrap_or(0);
+
+    let notifications_sent = sqlx::query_scalar!("SELECT count(*) FROM notifications_delivered")
+        .fetch_one(connection_pool)
+        .await
+        .context("Failed to fetch notifications sent count.")?
+        .unwrap_or(0);
+
+    let opened =
+        sqlx::query_scalar!("SELECT count(*) FROM notifications_delivered WHERE opened = TRUE")
+            .fetch_one(connection_pool)
+            .await
+            .context("Failed to fetch notifications sent count.")?
+            .unwrap_or(0);
+
+    let open_rate = if notifications_sent == 0 {
+        0.0
+    } else {
+        (opened as f64) / (notifications_sent as f64) * 100.0
+    };
+
+    Ok(DashboardStats {
+        subscribers,
+        posts,
+        notifications_sent,
+        open_rate,
+    })
 }

src/routes/admin/logout.rs

@@ -1,13 +1,13 @@
-use crate::{routes::AdminError, session_state::TypedSession};
+use crate::session_state::TypedSession;
 use axum::{
     http::{HeaderMap, StatusCode},
     response::{IntoResponse, Response},
 };
 
 #[tracing::instrument(name = "Logging out", skip(session))]
-pub async fn logout(session: TypedSession) -> Result<Response, AdminError> {
+pub async fn logout(session: TypedSession) -> Response {
     session.clear().await;
     let mut headers = HeaderMap::new();
     headers.insert("HX-Redirect", "/login".parse().unwrap());
-    Ok((StatusCode::OK, headers).into_response())
+    (StatusCode::OK, headers).into_response()
 }

src/routes/admin/newsletters.rs

@@ -1,18 +1,18 @@
 use crate::{
-    authentication::AuthenticatedUser,
     idempotency::{IdempotencyKey, save_response, try_processing},
-    routes::AdminError,
+    routes::{AdminError, AppError},
     startup::AppState,
-    templates::SuccessTemplate,
+    templates::{EmailTemplate, MessageTemplate, StandaloneEmailTemplate},
 };
 use anyhow::Context;
 use askama::Template;
 use axum::{
-    Extension, Form,
+    Form,
     extract::State,
     response::{Html, IntoResponse, Response},
 };
 use sqlx::{Executor, Postgres, Transaction};
+use std::fmt::Display;
 use uuid::Uuid;
 
 #[derive(serde::Deserialize)]
@@ -23,14 +23,14 @@ pub struct BodyData {
     idempotency_key: String,
 }
 
-#[tracing::instrument(skip_all)]
+#[tracing::instrument(name = "Creating newsletter isue", skip_all, fields(issue_id = tracing::field::Empty))]
 pub async fn insert_newsletter_issue(
     transaction: &mut Transaction<'static, Postgres>,
     title: &str,
-    text_content: &str,
-    html_content: &str,
+    email_template: &dyn EmailTemplate,
 ) -> Result<Uuid, sqlx::Error> {
     let newsletter_issue_id = Uuid::new_v4();
+    tracing::Span::current().record("issue_id", newsletter_issue_id.to_string());
     let query = sqlx::query!(
         r#"
         INSERT INTO newsletter_issues (
@@ -40,42 +40,62 @@ pub async fn insert_newsletter_issue(
         "#,
         newsletter_issue_id,
         title,
-        text_content,
-        html_content
+        email_template.text(),
+        email_template.html(),
     );
     transaction.execute(query).await?;
     Ok(newsletter_issue_id)
 }
 
-#[tracing::instrument(skip_all)]
+#[derive(Debug)]
+pub enum EmailType {
+    NewPost,
+    Newsletter,
+}
+
+impl Display for EmailType {
+    fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
+        match self {
+            EmailType::NewPost => write!(f, "new_post"),
+            EmailType::Newsletter => write!(f, "newsletter"),
+        }
+    }
+}
+
+#[tracing::instrument(name = "Adding new task to queue", skip(transaction))]
 pub async fn enqueue_delivery_tasks(
     transaction: &mut Transaction<'static, Postgres>,
     newsletter_issue_id: Uuid,
+    kind: EmailType,
 ) -> Result<(), sqlx::Error> {
     let query = sqlx::query!(
         r#"
         INSERT INTO issue_delivery_queue (
             newsletter_issue_id,
-            subscriber_email
+            subscriber_email,
+            unsubscribe_token,
+            kind
         )
-        SELECT $1, email
+        SELECT $1, email, unsubscribe_token, $2
         FROM subscriptions
         WHERE status = 'confirmed'
         "#,
         newsletter_issue_id,
+        kind.to_string()
     );
     transaction.execute(query).await?;
     Ok(())
 }
 
-#[tracing::instrument(name = "Publishing a newsletter", skip(connection_pool, form))]
+#[tracing::instrument(name = "Publishing a newsletter", skip_all, fields(title = %form.title))]
 pub async fn publish_newsletter(
     State(AppState {
-        connection_pool, ..
+        connection_pool,
+        base_url,
+        ..
     }): State<AppState>,
-    Extension(AuthenticatedUser { user_id, .. }): Extension<AuthenticatedUser>,
     Form(form): Form<BodyData>,
-) -> Result<Response, AdminError> {
+) -> Result<Response, AppError> {
     validate_form(&form).map_err(|e| AdminError::Publish(anyhow::anyhow!(e)))?;
 
     let idempotency_key: IdempotencyKey = form
@@ -83,38 +103,42 @@ pub async fn publish_newsletter(
         .try_into()
         .map_err(AdminError::Idempotency)?;
 
-    let mut transaction = match try_processing(&connection_pool, &idempotency_key, user_id).await? {
+    let mut transaction = match try_processing(&connection_pool, &idempotency_key).await? {
         crate::idempotency::NextAction::StartProcessing(t) => t,
         crate::idempotency::NextAction::ReturnSavedResponse(response) => {
             return Ok(response);
         }
     };
 
-    let issue_id = insert_newsletter_issue(&mut transaction, &form.title, &form.text, &form.html)
+    let email_template = StandaloneEmailTemplate {
+        base_url: &base_url,
+        text_content: &form.text,
+        html_content: &form.html,
+    };
+
+    let issue_id = insert_newsletter_issue(&mut transaction, &form.title, &email_template)
         .await
         .context("Failed to store newsletter issue details.")?;
 
-    enqueue_delivery_tasks(&mut transaction, issue_id)
+    enqueue_delivery_tasks(&mut transaction, issue_id, EmailType::Newsletter)
         .await
         .context("Failed to enqueue delivery tasks.")?;
 
-    let success_message = format!(
-        r#"The newsletter issue "{}" has been published!"#,
-        form.title
-    );
-    let template = SuccessTemplate { success_message };
+    let message = String::from("Your email has been queued for delivery.");
+    let template = MessageTemplate::success(message);
     let response = Html(template.render().unwrap()).into_response();
-    save_response(transaction, &idempotency_key, user_id, response)
+    let response = save_response(transaction, &idempotency_key, response)
         .await
-        .map_err(AdminError::UnexpectedError)
+        .map_err(AdminError::UnexpectedError)?;
+    Ok(response)
 }
 
-fn validate_form(form: &BodyData) -> Result<(), &'static str> {
+fn validate_form(form: &BodyData) -> Result<(), anyhow::Error> {
     if form.title.is_empty() {
-        return Err("The title was empty");
+        anyhow::bail!("The title was empty.");
     }
     if form.html.is_empty() || form.text.is_empty() {
-        return Err("The content was empty.");
+        anyhow::bail!("The content was empty.");
     }
     Ok(())
 }

src/routes/admin/posts.rs

@@ -1,9 +1,11 @@
 use crate::{
     authentication::AuthenticatedUser,
     idempotency::{IdempotencyKey, save_response, try_processing},
-    routes::{AdminError, enqueue_delivery_tasks, insert_newsletter_issue},
+    routes::{
+        AdminError, AppError, EmailType, Path, enqueue_delivery_tasks, insert_newsletter_issue,
+    },
     startup::AppState,
-    templates::SuccessTemplate,
+    templates::{MessageTemplate, NewPostEmailTemplate},
 };
 use anyhow::Context;
 use askama::Template;
@@ -31,14 +33,20 @@ fn validate_form(form: &CreatePostForm) -> Result<(), anyhow::Error> {
     }
 }
 
-#[tracing::instrument(name = "Creating a post", skip(connection_pool, form))]
+#[tracing::instrument(
+    name = "Publishing new blog post",
+    skip(connection_pool, base_url, form)
+    fields(title = %form.title)
+)]
 pub async fn create_post(
     State(AppState {
-        connection_pool, ..
+        connection_pool,
+        base_url,
+        ..
     }): State<AppState>,
     Extension(AuthenticatedUser { user_id, .. }): Extension<AuthenticatedUser>,
     Form(form): Form<CreatePostForm>,
-) -> Result<Response, AdminError> {
+) -> Result<Response, AppError> {
     validate_form(&form).map_err(AdminError::Publish)?;
 
     let idempotency_key: IdempotencyKey = form
@@ -46,7 +54,7 @@ pub async fn create_post(
         .try_into()
         .map_err(AdminError::Idempotency)?;
 
-    let mut transaction = match try_processing(&connection_pool, &idempotency_key, user_id).await? {
+    let mut transaction = match try_processing(&connection_pool, &idempotency_key).await? {
         crate::idempotency::NextAction::StartProcessing(t) => t,
         crate::idempotency::NextAction::ReturnSavedResponse(response) => {
             return Ok(response);
@@ -57,36 +65,29 @@ pub async fn create_post(
         .await
         .context("Failed to insert new post in the database.")?;
 
-    let newsletter_uuid = create_newsletter(&mut transaction, &form.title, &form.content, &post_id)
+    let newsletter_uuid = create_newsletter(&mut transaction, &base_url, &form.title, &post_id)
         .await
         .context("Failed to create newsletter.")?;
 
-    enqueue_delivery_tasks(&mut transaction, newsletter_uuid)
+    enqueue_delivery_tasks(&mut transaction, newsletter_uuid, EmailType::NewPost)
         .await
         .context("Failed to enqueue delivery tasks.")?;
 
-    // Send emails with unique identifiers that contains link to blog post with special param
-    // Get handpoint that returns the post and mark the email as opened
-
-    let template = SuccessTemplate {
-        success_message: "Your new post has been saved. Subscribers will be notified.".into(),
-    };
+    let template = MessageTemplate::success("Your new post has been published!".into());
     let response = Html(template.render().unwrap()).into_response();
-    save_response(transaction, &idempotency_key, user_id, response)
+    let response = save_response(transaction, &idempotency_key, response)
         .await
-        .map_err(AdminError::UnexpectedError)
+        .map_err(AdminError::UnexpectedError)?;
+    Ok(response)
 }
 
-#[tracing::instrument(
-    name = "Saving new post in the database",
-    skip(transaction, title, content, author)
-)]
+#[tracing::instrument(name = "Saving new blog post in the database", skip_all)]
 pub async fn insert_post(
     transaction: &mut Transaction<'static, Postgres>,
     title: &str,
     content: &str,
     author: &Uuid,
-) -> Result<Uuid, AdminError> {
+) -> Result<Uuid, sqlx::Error> {
     let post_id = Uuid::new_v4();
     let query = sqlx::query!(
         r#"
@@ -99,22 +100,43 @@ pub async fn insert_post(
         content,
         Utc::now()
     );
-    transaction
-        .execute(query)
-        .await
-        .map_err(|e| AdminError::UnexpectedError(e.into()))?;
+    transaction.execute(query).await?;
     Ok(post_id)
 }
 
-#[tracing::instrument(
-    name = "Creating newsletter for new post",
-    skip(transaction, title, content, _post_id)
-)]
+#[tracing::instrument(name = "Creating newsletter for new post", skip_all)]
 pub async fn create_newsletter(
     transaction: &mut Transaction<'static, Postgres>,
-    title: &str,
-    content: &str,
-    _post_id: &Uuid,
+    base_url: &str,
+    post_title: &str,
+    post_id: &Uuid,
 ) -> Result<Uuid, sqlx::Error> {
-    insert_newsletter_issue(transaction, title, content, content).await
+    let template = NewPostEmailTemplate {
+        base_url,
+        post_title,
+        post_id,
+        post_excerpt: "",
+    };
+    insert_newsletter_issue(transaction, post_title, &template).await
+}
+
+pub async fn delete_post(
+    State(AppState {
+        connection_pool, ..
+    }): State<AppState>,
+    Path(post_id): Path<Uuid>,
+) -> Result<Response, AppError> {
+    let res = sqlx::query!("DELETE FROM posts WHERE post_id = $1", post_id)
+        .execute(&connection_pool)
+        .await
+        .context("Failed to delete post from database.")
+        .map_err(AppError::unexpected_message)?;
+    if res.rows_affected() > 1 {
+        Err(AppError::unexpected_message(anyhow::anyhow!(
+            "We could not find the post in the database."
+        )))
+    } else {
+        let template = MessageTemplate::success("The post has been deleted.".into());
+        Ok(template.render().unwrap().into_response())
+    }
 }

src/routes/admin/subscribers.rs

@@ -0,0 +1,116 @@
+use crate::{
+    domain::SubscriberEntry,
+    routes::{AppError, Path, Query},
+    startup::AppState,
+    templates::{MessageTemplate, SubListTemplate},
+};
+use anyhow::Context;
+use askama::Template;
+use axum::{
+    extract::State,
+    response::{Html, IntoResponse, Response},
+};
+use sqlx::PgPool;
+use uuid::Uuid;
+
+pub const SUBS_PER_PAGE: i64 = 5;
+
+#[tracing::instrument(name = "Retrieving subscribers from database", skip(connection_pool))]
+pub async fn get_subscribers_page(
+    State(AppState {
+        connection_pool, ..
+    }): State<AppState>,
+    Query(SubsQueryParams { page }): Query<SubsQueryParams>,
+) -> Result<Response, AppError> {
+    let count = get_total_subs(&connection_pool)
+        .await
+        .context("Could not fetch total subscribers count from the database.")
+        .map_err(AppError::unexpected_message)?;
+    let max_page = get_max_page(count, SUBS_PER_PAGE);
+    let subscribers = get_subs(&connection_pool, page)
+        .await
+        .context("Could not fetch subscribers data.")
+        .map_err(AppError::unexpected_message)?;
+    let template = SubListTemplate {
+        subscribers,
+        current_page: page,
+        max_page,
+    };
+    Ok(Html(template.render().unwrap()).into_response())
+}
+
+#[tracing::instrument(
+    name = "Deleting subscriber from database",
+    skip(connection_pool),
+    fields(email=tracing::field::Empty)
+)]
+pub async fn delete_subscriber(
+    State(AppState {
+        connection_pool, ..
+    }): State<AppState>,
+    Path(subscriber_id): Path<Uuid>,
+) -> Result<Response, AppError> {
+    let res = sqlx::query!(
+        "DELETE FROM subscriptions WHERE id = $1 RETURNING email",
+        subscriber_id
+    )
+    .fetch_optional(&connection_pool)
+    .await
+    .context("Failed to delete subscriber from database.")
+    .map_err(AppError::unexpected_message)?;
+    if let Some(record) = res {
+        tracing::Span::current().record("email", tracing::field::display(&record.email));
+        let template = MessageTemplate::success(format!(
+            "The subscriber with email '{}' has been deleted.",
+            record.email
+        ));
+        Ok(template.render().unwrap().into_response())
+    } else {
+        Err(AppError::unexpected_message(anyhow::anyhow!(
+            "We could not find the subscriber in the database."
+        )))
+    }
+}
+
+#[tracing::instrument(
+    name = "Retrieving next subscribers in database",
+    skip(connection_pool),
+    fields(offset = tracing::field::Empty)
+)]
+pub async fn get_subs(
+    connection_pool: &PgPool,
+    page: i64,
+) -> Result<Vec<SubscriberEntry>, sqlx::Error> {
+    let offset = (page - 1) * SUBS_PER_PAGE;
+    tracing::Span::current().record("offset", tracing::field::display(&offset));
+    let subscribers = sqlx::query_as!(
+        SubscriberEntry,
+        "SELECT * FROM subscriptions ORDER BY subscribed_at DESC LIMIT $1 OFFSET $2",
+        SUBS_PER_PAGE,
+        offset
+    )
+    .fetch_all(connection_pool)
+    .await?;
+    Ok(subscribers)
+}
+
+pub async fn get_total_subs(connection_pool: &PgPool) -> Result<i64, sqlx::Error> {
+    let count = sqlx::query_scalar!("SELECT count(*) FROM subscriptions")
+        .fetch_one(connection_pool)
+        .await?
+        .unwrap_or(0);
+    Ok(count)
+}
+
+pub fn get_max_page(count: i64, num_per_page: i64) -> i64 {
+    let mut max_page = count.div_euclid(num_per_page);
+    if count % num_per_page > 0 {
+        max_page += 1;
+    }
+    max_page
+}
+
+#[derive(serde::Deserialize)]
+pub struct SubsQueryParams {
+    page: i64,
+}

src/routes/comments.rs

@@ -0,0 +1,264 @@
+use crate::idempotency::{IdempotencyKey, save_response, try_processing};
+use crate::routes::{AdminError, get_max_page};
+use crate::templates::CommentsPageDashboardTemplate;
+use crate::{
+    domain::CommentEntry,
+    routes::AppError,
+    startup::AppState,
+    templates::{CommentsList, HtmlTemplate, MessageTemplate},
+};
+use anyhow::Context;
+use askama::Template;
+use axum::{
+    Form,
+    extract::{Path, Query, State},
+    response::{IntoResponse, Response},
+};
+use sqlx::{Executor, PgPool, Postgres, Transaction};
+use uuid::Uuid;
+
+#[derive(serde::Deserialize)]
+pub struct CommentPathParam {
+    post_id: Uuid,
+}
+
+#[derive(serde::Deserialize)]
+pub struct CommentForm {
+    pub author: Option<String>,
+    pub content: String,
+    pub idempotency_key: String,
+    pub user_id: Option<Uuid>,
+}
+
+#[tracing::instrument(name = "Posting new comment", skip_all, fields(post_id = %post_id))]
+pub async fn post_comment(
+    Path(CommentPathParam { post_id }): Path<CommentPathParam>,
+    State(AppState {
+        connection_pool, ..
+    }): State<AppState>,
+    Form(form): Form<CommentForm>,
+) -> Result<Response, AppError> {
+    validate_form(&form)?;
+
+    let idempotency_key: IdempotencyKey = form
+        .idempotency_key
+        .try_into()
+        .map_err(AdminError::Idempotency)?;
+
+    let mut transaction = match try_processing(&connection_pool, &idempotency_key).await? {
+        crate::idempotency::NextAction::StartProcessing(t) => t,
+        crate::idempotency::NextAction::ReturnSavedResponse(response) => {
+            return Ok(response);
+        }
+    };
+
+    insert_comment(
+        &mut transaction,
+        post_id,
+        form.author,
+        form.user_id,
+        form.content,
+    )
+    .await
+    .context("Could not insert comment into database.")?;
+
+    let template = HtmlTemplate(MessageTemplate::success(
+        "Your comment has been posted.".into(),
+    ));
+    let response = template.into_response();
+    let response = save_response(transaction, &idempotency_key, response).await?;
+    Ok(response)
+}
+
+fn validate_form(form: &CommentForm) -> Result<(), anyhow::Error> {
+    if form.content.is_empty() {
+        anyhow::bail!("Comment content cannot be empty.");
+    }
+    Ok(())
+}
+
+#[tracing::instrument(name = "Inserting new comment in database", skip_all, fields(comment_id = tracing::field::Empty))]
+async fn insert_comment(
+    transaction: &mut Transaction<'static, Postgres>,
+    post_id: Uuid,
+    author: Option<String>,
+    user_id: Option<Uuid>,
+    content: String,
+) -> Result<Uuid, sqlx::Error> {
+    let author = if user_id.is_some() {
+        None
+    } else {
+        author
+            .filter(|s| !s.trim().is_empty())
+            .map(|s| s.trim().to_string())
+    };
+    let content = content.trim();
+    let comment_id = Uuid::new_v4();
+    tracing::Span::current().record("comment_id", comment_id.to_string());
+    let query = sqlx::query!(
+        "
+        INSERT INTO comments (user_id, comment_id, post_id, author, content)
+        VALUES ($1, $2, $3, $4, $5)
+        ",
+        user_id,
+        comment_id,
+        post_id,
+        author,
+        content,
+    );
+    transaction.execute(query).await?;
+    Ok(comment_id)
+}
+
+pub const COMMENTS_PER_PAGE: i64 = 5;
+
+#[derive(serde::Deserialize)]
+pub struct GetCommentsQueryParams {
+    page: i64,
+}
+
+#[tracing::instrument(name = "Fetching comments", skip(connection_pool))]
+pub async fn get_comments(
+    Path(CommentPathParam { post_id }): Path<CommentPathParam>,
+    Query(GetCommentsQueryParams { page }): Query<GetCommentsQueryParams>,
+    State(AppState {
+        connection_pool, ..
+    }): State<AppState>,
+) -> Result<Response, AppError> {
+    let comments = get_comments_page_for_post(&connection_pool, post_id, page)
+        .await
+        .context("Could not fetch comments.")?;
+    let count = get_comments_count_for_post(&connection_pool, post_id)
+        .await
+        .context("Could not fetch comments count")?;
+    let max_page = get_max_page(count, COMMENTS_PER_PAGE);
+    let template = HtmlTemplate(CommentsList {
+        comments,
+        current_page: page,
+        max_page,
+    });
+    Ok(template.into_response())
+}
+
+#[tracing::instrument(name = "Fetching all comments", skip(connection_pool))]
+pub async fn get_all_comments(
+    Query(GetCommentsQueryParams { page }): Query<GetCommentsQueryParams>,
+    State(AppState {
+        connection_pool, ..
+    }): State<AppState>,
+) -> Result<Response, AppError> {
+    let comments = get_comments_page(&connection_pool, page)
+        .await
+        .context("Could not fetch comments.")?;
+    let count = get_comments_count(&connection_pool)
+        .await
+        .context("Could not fetch comments count")?;
+    let comments_max_page = get_max_page(count, COMMENTS_PER_PAGE);
+    let template = HtmlTemplate(CommentsPageDashboardTemplate {
+        comments,
+        comments_current_page: page,
+        comments_max_page,
+    });
+    Ok(template.into_response())
+}
+
+pub async fn delete_comment(
+    State(AppState {
+        connection_pool, ..
+    }): State<AppState>,
+    crate::routes::Path(comment_id): crate::routes::Path<Uuid>,
+) -> Result<Response, AppError> {
+    let res = sqlx::query!("DELETE FROM comments WHERE comment_id = $1", comment_id)
+        .execute(&connection_pool)
+        .await
+        .context("Failed to delete comment from database.")
+        .map_err(AppError::unexpected_message)?;
+    if res.rows_affected() > 1 {
+        Err(AppError::unexpected_message(anyhow::anyhow!(
+            "We could not find the comment in the database."
+        )))
+    } else {
+        let template = MessageTemplate::success("The comment has been deleted.".into());
+        Ok(template.render().unwrap().into_response())
+    }
+}
+
+pub async fn get_comments_page_for_post(
+    connection_pool: &PgPool,
+    post_id: Uuid,
+    page: i64,
+) -> Result<Vec<CommentEntry>, sqlx::Error> {
+    let offset = (page - 1) * COMMENTS_PER_PAGE;
+    let mut comments = sqlx::query_as!(
+        CommentEntry,
+        r#"
+        SELECT c.user_id as "user_id?", u.username as "username?", c.comment_id, c.post_id, c.author, c.content, c.published_at
+        FROM comments c
+        LEFT JOIN users u ON c.user_id = u.user_id AND c.user_id IS NOT NULL
+        WHERE c.post_id = $1
+        ORDER BY c.published_at DESC
+        LIMIT $2
+        OFFSET $3
+        "#,
+        post_id,
+        COMMENTS_PER_PAGE,
+        offset
+    )
+    .fetch_all(connection_pool)
+    .await?;
+    for comment in comments.iter_mut() {
+        if let Some(user_id) = comment.user_id {
+            let record = sqlx::query!(
+                "SELECT username, full_name FROM users WHERE user_id = $1",
+                user_id
+            )
+            .fetch_one(connection_pool)
+            .await?;
+            let author = record.full_name.unwrap_or(record.username);
+            comment.author = Some(author);
+        }
+    }
+    Ok(comments)
+}
+
+pub async fn get_comments_count_for_post(
+    connection_pool: &PgPool,
+    post_id: Uuid,
+) -> Result<i64, sqlx::Error> {
+    let count = sqlx::query_scalar!("SELECT count(*) FROM comments WHERE post_id = $1", post_id)
+        .fetch_one(connection_pool)
+        .await?
+        .unwrap_or(0);
+    Ok(count)
+}
+
+pub async fn get_comments_page(
+    connection_pool: &PgPool,
+    page: i64,
+) -> Result<Vec<CommentEntry>, sqlx::Error> {
+    let offset = (page - 1) * COMMENTS_PER_PAGE;
+    let comments = sqlx::query_as!(
+        CommentEntry,
+        r#"
+        SELECT c.user_id as "user_id?", u.username as "username?", c.comment_id, c.post_id, c.author, c.content, c.published_at
+        FROM comments c
+        LEFT JOIN users u ON c.user_id = u.user_id AND c.user_id IS NOT NULL
+        ORDER BY published_at DESC
+        LIMIT $1
+        OFFSET $2
+        "#,
+        COMMENTS_PER_PAGE,
+        offset
+    )
+    .fetch_all(connection_pool)
+    .await?;
+    Ok(comments)
+}
+
+pub async fn get_comments_count(connection_pool: &PgPool) -> Result<i64, sqlx::Error> {
+    let count = sqlx::query_scalar!("SELECT count(*) FROM comments")
+        .fetch_one(connection_pool)
+        .await?
+        .unwrap_or(0);
+    Ok(count)
+}

src/routes/health_check.rs

@@ -1,5 +1,5 @@
-use axum::{http::StatusCode, response::IntoResponse};
+use axum::http::StatusCode;
 
-pub async fn health_check() -> impl IntoResponse {
+pub async fn health_check() -> StatusCode {
     StatusCode::OK
 }

src/routes/home.rs

@@ -1,10 +1,7 @@
-use askama::Template;
-use axum::response::Html;
+use crate::templates::{HomeTemplate, HtmlTemplate};
+use axum::response::{IntoResponse, Response};
 
-#[derive(Template)]
-#[template(path = "../templates/home.html")]
-struct HomeTemplate;
-
-pub async fn home() -> Html<String> {
-    Html(HomeTemplate.render().unwrap())
+pub async fn home() -> Response {
+    let template = HtmlTemplate(HomeTemplate);
+    template.into_response()
 }