diff --git a/client/Cargo.toml b/client/Cargo.toml
index df5436c..cf6d312 100644
--- a/client/Cargo.toml
+++ b/client/Cargo.toml
@@ -10,3 +10,4 @@ edition = "2021"
 image = { version = "0.24.7", features = [] }
 complex = { path = "../complex" }
 shared = { path = "../shared" }
+server = { path = "../server" }
diff --git a/client/src/client.rs b/client/src/client.rs
index 8b13789..1bcf58b 100644
--- a/client/src/client.rs
+++ b/client/src/client.rs
@@ -1 +1,32 @@
+use server::services::{connect::connect, write::write};
 
+/// Connect to the server and send a message
+///
+/// # Arguments
+///
+/// * `host` - Hostname
+/// * `port` - Port
+///
+/// # Return
+///
+/// * `Result<TcpStream, std::io::Error>` - TcpStream
+///
+/// # Example
+///
+/// ```
+/// use client::client::connect_server;
+///
+/// let stream = connect_server("localhost", "8080");
+/// ```
+///
+/// # Panic
+///
+/// * `std::io::Error` - If the connection failed
+///
+pub fn connect_server(host: &str, port: &str) -> std::io::Result<std::net::TcpStream> {
+    let stream = connect(format!("{}:{}", host, port))?;
+
+    write(stream, "Hello World !")?;
+
+    Ok(())
+}
diff --git a/server/Cargo.toml b/server/Cargo.toml
index 32a59ae..df23bca 100644
--- a/server/Cargo.toml
+++ b/server/Cargo.toml
@@ -9,3 +9,6 @@ edition = "2021"
 [dependencies]
 complex = { path = "../complex" }
 shared = { path = "../shared" }
+
+[lib]
+path = "src/lib.rs"
diff --git a/server/src/mod.rs b/server/src/lib.rs
similarity index 64%
rename from server/src/mod.rs
rename to server/src/lib.rs
index efdff6d..c6b23f6 100644
--- a/server/src/mod.rs
+++ b/server/src/lib.rs
@@ -1,2 +1,3 @@
 pub mod handler;
 pub mod image;
+pub mod services;
diff --git a/server/src/main.rs b/server/src/main.rs
deleted file mode 100644
index b6dafd8..0000000
--- a/server/src/main.rs
+++ /dev/null
@@ -1,3 +0,0 @@
-fn main() {
-    println!("[SERVER] Hello, world!");
-}
diff --git a/server/src/services/connect.rs b/server/src/services/connect.rs
new file mode 100644
index 0000000..1ac1e2c
--- /dev/null
+++ b/server/src/services/connect.rs
@@ -0,0 +1,17 @@
+use std::io::Result;
+use std::net::TcpStream;
+
+/// Connect to a server
+///
+/// # Arguments
+///
+/// * `address` - Address
+///
+/// # Return
+///
+/// * `Result<TcpStream, std::io::Error>` - TcpStream
+pub fn connect(address: &str) -> Result<TcpStream> {
+    let stream = TcpStream::connect(address)?;
+
+    Ok(stream)
+}
diff --git a/server/src/services/mod.rs b/server/src/services/mod.rs
new file mode 100644
index 0000000..7f9fdb2
--- /dev/null
+++ b/server/src/services/mod.rs
@@ -0,0 +1,2 @@
+pub mod connect;
+pub mod write;
diff --git a/server/src/services/write.rs b/server/src/services/write.rs
new file mode 100644
index 0000000..3e92d48
--- /dev/null
+++ b/server/src/services/write.rs
@@ -0,0 +1,19 @@
+use std::io::Result;
+use std::io::Write;
+use std::net::TcpStream;
+
+/// Write a string to a stream
+///
+/// # Arguments
+///
+/// * `stream` - TcpStream
+/// * `message` - String
+///
+/// # Return
+///
+/// * `Result<TcpStream, std::io::Error>` - TcpStream
+pub fn write(mut stream: TcpStream, message: &str) -> Result<TcpStream> {
+    stream.write(format!("${}", message).as_bytes())?;
+
+    Ok(stream)
+}