server app builder implemented

src/startup.rs

@@ -27,3 +27,44 @@ pub fn run(
 
     Ok(server)
 }
+
+pub struct Application {
+	pub port: u16,
+	pub server: Server,
+}
+
+impl Application {
+	pub async fn build(
+		config: crate::configuration::Settings,
+	) -> Result<Self, std::io::Error> {
+		let connection_pool: Pool<Postgres> = get_connection_pool(config.database);
+	
+		let sender_email = config.email_client.sender().unwrap();
+		let timeout = config.email_client.timeout();
+		let email_client = EmailClient::new(
+			config.email_client.base_url,
+			sender_email,
+			config.email_client.authorization_token,
+			timeout,
+		);
+	
+		let port = config.application.port;
+		let listener = TcpListener::bind(format!("{}:{}", config.application.host, port))?;
+		let server = run(listener, connection_pool, email_client)?;
+		Ok(Self { port, server })
+	}
+
+	pub fn port(&self) -> u16 {
+		self.port
+	}
+
+	pub async fn run_until_stopped(self) -> Result<(), std::io::Error> {
+		self.server.await
+	}
+}
+
+
+
+pub fn get_connection_pool(config: crate::configuration::DatabaseSettings) -> Pool<Postgres> {
+	Pool::connect_lazy_with(config.with_db())
+}