[update] enhanced database connection pooling with configurable options (max_connections, min_connections, timeouts) and added detailed error context for migration failures

backend-rust/src/db.rs

@@ -1,9 +1,10 @@
-use crate::config::{AppSettings};
-use anyhow::Result;
+use crate::config::AppSettings;
+use anyhow::{Context, Result};
 use sqlx::migrate::Migrator;
-use sqlx::sqlite::{SqliteConnectOptions};
+use sqlx::sqlite::{SqliteConnectOptions, SqlitePoolOptions};
 use sqlx::{Pool, Sqlite, SqlitePool};
 use std::str::FromStr;
+use std::time::Duration;
 use tracing::info;
 
 pub const MIGRATOR: Migrator = sqlx::migrate!("./migrations");
@@ -16,9 +17,15 @@ pub async fn initialize_db(app_settings: &AppSettings) -> Result<Pool<Sqlite>> {
         .journal_mode(sqlx::sqlite::SqliteJournalMode::Wal)
         .foreign_keys(true);
 
-    let pool = SqlitePool::connect_with(options).await?;
+    let pool = SqlitePoolOptions::new()
+        .max_connections(20)
+        .min_connections(5)
+        .acquire_timeout(Duration::from_secs(30))
+        .idle_timeout(Duration::from_secs(600))
+        .connect_with(options)
+        .await?;
 
-    MIGRATOR.run(&pool).await?;
+    MIGRATOR.run(&pool).await.with_context(|| "Database migrations failed")?;
     info!("Database migrations completed successfully");
 
     Ok(pool)