...

src/main.rs

@@ -59,7 +59,7 @@ async fn root() -> &'static str {
     "KOreader sync server"
 }
 
-async fn create_user(Json(payload): Json<User>) -> (StatusCode, String) {
+async fn create_user(Json(payload): Json<User>) -> (StatusCode, Json<Value>) {
     let client = redis::Client::open("redis://127.0.0.1/").unwrap();
     let mut con = client.get_connection().unwrap();
 
@@ -75,11 +75,11 @@ async fn create_user(Json(payload): Json<User>) -> (StatusCode, String) {
     } else {
         return (
             StatusCode::PAYMENT_REQUIRED,
-            "Username is already registered.".to_owned(),
+            Json(json!({ "message" : "Username is already registered." })),
         );
     }
 
-    (StatusCode::CREATED, format!("username = {username}"))
+    (StatusCode::CREATED, Json(json!({ "username" : username })))
 }
 
 fn authorize(username: &str, password: &str) -> bool {