feat: add MongoDB support with connection pooling and repository pattern

src/main.rs

@@ -1,7 +1,9 @@
 // src/main.rs
 
 use std::process::exit;
+use std::sync::Arc;
 
+use ::mongodb::Database;
 use axum::Router;
 use dotenvy::dotenv;
 use tokio::signal;
@@ -11,9 +13,17 @@ use tracing_subscriber::{EnvFilter, fmt, prelude::*};
 
 mod config;
 mod handlers;
+mod mongodb;
 mod routes;
 
 use config::Config;
+use mongodb::MongoDb;
+
+// Shared application state
+pub struct AppState {
+    pub db: Database,
+    pub config: Config,
+}
 
 #[tokio::main]
 async fn main() {
@@ -35,6 +45,21 @@ async fn main() {
         }
     };
 
+    // Connect to MongoDB using the config
+    let mongodb = match MongoDb::connect(&config).await {
+        Ok(db) => db,
+        Err(e) => {
+            error!("Failed to connect to MongoDB: {}", e);
+            exit(1);
+        }
+    };
+
+    // Create shared state
+    let _shared_state = Arc::new(AppState {
+        db: mongodb.database,
+        config: config.clone(),
+    });
+
     #[cfg(feature = "no-auth")]
     info!("NO-AUTH MODE ENABLED");
 
@@ -42,7 +67,6 @@ async fn main() {
 
     // Build the Axum router
     let app = Router::new()
-        // .nest("/health", routes::health::health::health_routes())
         .nest("/health", routes::health::health::health_routes())
         .nest("/user", routes::user::user::user_routes())
         .layer(TraceLayer::new_for_http());