Added doc gen for endpoint and made some improvements

src/callers/register.rs

@@ -198,6 +198,21 @@ async fn is_registration_enabled() -> Result<bool, std::io::Error> {
 }
 
 /// Endpoint to register a service user
+#[utoipa::path(
+    post,
+    path = super::endpoints::REGISTER_SERVICE_USER,
+    request_body(
+        content = request::RegisterServiceUserRequest,
+        description = "Data required to register service user",
+        content_type = "application/json"
+    ),
+    responses(
+        (status = 201, description = "Service user created", body = response::RegisterServiceUserResponse),
+        (status = 400, description = "Issue creating service user", body = response::RegisterServiceUserResponse),
+        (status = 406, description = "Cannot create service user", body = response::RegisterServiceUserResponse),
+        (status = 500, description = "Issue creating service user", body = response::RegisterServiceUserResponse),
+    )
+)]
 pub async fn register_service_user(
     axum::Extension(pool): axum::Extension<sqlx::PgPool>,
     Json(payload): Json<request::RegisterServiceUserRequest>,
@@ -209,11 +224,24 @@ pub async fn register_service_user(
         ..Default::default()
     };
 
+    let registration_enabled = match is_registration_enabled().await {
+        Ok(value) => value,
+        Err(err) => {
+            eprintln!("Error: {err:?}");
+            resp.message = String::from("Registration check failed");
+            return (
+                axum::http::StatusCode::INTERNAL_SERVER_ERROR,
+                Json(resp)
+            );
+        }
+    };
+
     let (res, msg) = payload.is_empty();
     if res {
         resp.message = msg.unwrap();
         (axum::http::StatusCode::BAD_REQUEST, axum::Json(resp))
     } else {
+        if registration_enabled {
             match repo::service::exists(&pool, &payload.username).await {
                 Ok(exists) => {
                     if exists {
@@ -260,5 +288,12 @@ pub async fn register_service_user(
                     )
                 }
             }
+        } else {
+            resp.message = String::from("Registration is not enabled");
+        (
+            axum::http::StatusCode::NOT_ACCEPTABLE,
+            Json(resp),
+        )
+        }
     }
 }