(server) feat:Add TCP server

Server/src/network_service/tcp_server.rs

@@ -0,0 +1,31 @@
+use tokio::{
+    io::AsyncWriteExt,
+    net::{TcpListener, TcpStream},
+};
+
+pub(crate) struct TcpServer;
+
+impl TcpServer {
+    pub(crate) async fn init() {
+        match TcpListener::bind("127.0.0.1:12345").await {
+            Ok(listener) => loop {
+                match listener.accept().await {
+                    Ok((socket, addr)) => {
+                        log::info!("New client connected: {addr}");
+
+                        tokio::spawn(async { Self::process(socket).await });
+                    }
+                    Err(e) => log::error!("Couldn't get client: {e:?}"),
+                }
+            },
+            Err(e) => log::error!("Failed to bind port: {e:?}"),
+        }
+    }
+
+    async fn process(mut socket: TcpStream) {
+        socket
+            .write_all("Hello from server written in Rust!".as_bytes())
+            .await
+            .unwrap();
+    }
+}