Redis config

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");
@@ -60,7 +65,7 @@ pub struct Settings {
     pub application: ApplicationSettings,
     pub database: DatabaseSettings,
     pub email_client: EmailClientSettings,
-    pub redis_uri: SecretString,
+    pub kv_store: RedisSettings,
 }
 
 #[derive(Clone, Deserialize)]
@@ -100,6 +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,