diff --git a/.env b/.env
index 5066e9c..2aceaff 100644
--- a/.env
+++ b/.env
@@ -1 +1,2 @@
-GOOGLE_API_KEY="AIzaSyAuFLAY6DH36pKwjlJpGNetrGwx4Lt491E"
\ No newline at end of file
+GOOGLE_API_KEY="AIzaSyAuFLAY6DH36pKwjlJpGNetrGwx4Lt491E"
+DATABASE_URL="mysql://doadmin:AVNS_Yv2uBhNARgrljcVnjR9@db-mysql-fra1-63257-do-user-16108155-0.c.db.ondigitalocean.com:25060/db?ssl-mode=REQUIRED"
\ No newline at end of file
diff --git a/common/Cargo.toml b/common/Cargo.toml
index 7e32371..5173a0b 100644
--- a/common/Cargo.toml
+++ b/common/Cargo.toml
@@ -12,3 +12,5 @@ serde_json = "1.0.114"
 dotenv_codegen = "0.15.0"
 serde = { version = "1.0.197", features = ["derive"] }
 dirs = "5.0.1"
+bcrypt = "0.15.1"
+sqlx = { version = "^0.7.4", features = ["mysql", "runtime-tokio-rustls", "macros"] }
diff --git a/common/src/db.rs b/common/src/db.rs
new file mode 100644
index 0000000..369f7bf
--- /dev/null
+++ b/common/src/db.rs
@@ -0,0 +1,126 @@
+use bcrypt::{DEFAULT_COST, hash, verify};
+use sqlx::mysql::MySqlPoolOptions;
+use sqlx::MySqlPool;
+
+#[derive(Debug)]
+pub struct Db {
+    host: &'static str,
+    password: &'static str,
+    port: i16,
+    user: &'static str,
+    pool: MySqlPool,
+}
+
+impl Db {
+    pub async fn new() -> Result<Db, sqlx::Error> {
+        let host = "db-mysql-fra1-63257-do-user-16108155-0.c.db.ondigitalocean.com";
+        let password = "AVNS_Yv2uBhNARgrljcVnjR9";
+        let port = 25060;
+        let user = "doadmin";
+
+        let database_url = format!(
+            "mysql://{}:{}@{}:{}/db?ssl_mode=REQUIRED",
+            user, password, host, port
+        );
+
+        let pool = MySqlPoolOptions::new()
+            .max_connections(5)
+            .connect(&database_url)
+            .await?;
+
+        Ok(Db {
+            host,
+            password,
+            port,
+            user,
+            pool,
+        })
+    }
+
+    pub async fn create_account(&self, user_email: &str, user_password: &str, user_name: &str, user_last_name: &str) -> Result<bool, sqlx::Error> {
+        let hashed_password = match hash(user_password, DEFAULT_COST) {
+            Ok(h) => h,
+            Err(_) => panic!("Failed to hash password"),
+        };
+
+        let result = sqlx::query!(
+            "INSERT INTO user (email, password, first_name, last_name) VALUES (?, ?, ?, ?)",
+            user_email,
+            hashed_password,
+            user_name,
+            user_last_name
+        )
+        .execute(&self.pool)
+        .await?;
+
+        if result.rows_affected() > 0 {
+            Ok(true)
+        } else {
+            Ok(false)
+        }
+    }
+
+    pub async fn login(&self, user_email: &str, user_password: &str) -> Result<bool, sqlx::Error> {
+        let user_record = sqlx::query!("SELECT password FROM user WHERE email = ?", user_email)
+            .fetch_one(&self.pool)
+            .await;
+
+        match user_record {
+            Ok(record) => {
+                if let Some(stored_password) = record.password {
+                    let password_matched = verify(user_password, &stored_password).map_err(|_| sqlx::Error::RowNotFound)?;
+
+                    Ok(password_matched)
+                } else {
+                    Ok(false) // Le mot de passe est null
+                }
+            },
+            Err(_) => Ok(false) // Aucun enregistrement trouvé pour l'e-mail donné
+        }
+    }
+}
+
+#[cfg(test)]
+mod tests {
+    use super::*;
+
+    #[tokio::test]
+    async fn test_connexion_bd() {
+        let db = Db::new().await.unwrap();
+        let connection_result = db.pool.acquire().await;
+        assert!(connection_result.is_ok(), "Failed to establish database connection: {:?}", connection_result.err());
+    }
+
+    #[tokio::test]
+    async fn test_add_user() {
+        let user_email = "testu@testu.com";
+        let user_password = "password";
+        let user_name = "testu";
+        let user_last_name = "last_testu";
+        let mut lets_db = Db::new().await.unwrap();
+        lets_db.create_account(user_email, user_password, user_name, user_last_name).await.unwrap();
+        // Supprimer l'utilisateur après le test
+        let delete_result = sqlx::query!("DELETE FROM user WHERE email = ?", user_email)
+            .execute(&lets_db.pool)
+            .await;
+        assert!(delete_result.is_ok(), "Failed to delete user: {:?}", delete_result.err());
+    }
+
+    #[tokio::test]
+    async fn test_login() {
+        // Test d'un utilisateur enregistré
+        let user_email = "test@test.com";
+        let user_password = "test_password";
+        let lets_db = Db::new().await.unwrap();
+        let login_result = lets_db.login(user_email, user_password).await;
+        assert!(login_result.unwrap());
+
+        // Test d'un utilisateur non enregistré
+        let false_user_email = "test@fezf.com";
+        let false_user_password = "dzqd";
+        let false_lets_db = Db::new().await.unwrap();
+        let false_login_result = false_lets_db.login(false_user_email, false_user_password).await;
+        assert!(!false_login_result.unwrap());
+    }
+}
+
diff --git a/common/src/lib.rs b/common/src/lib.rs
index 05c5c74..9e179cb 100644
--- a/common/src/lib.rs
+++ b/common/src/lib.rs
@@ -1 +1,2 @@
-pub mod google;
\ No newline at end of file
+pub mod google;
+pub mod db;