list and delete users

.sqlx/query-120b948148309b9e3eeb964f89f098163ceceaf8b1f2c76d81fab2811c362a63.json

@@ -1,12 +0,0 @@
-{
-  "db_name": "SQLite",
-  "query": "\n        INSERT INTO users (id, username, email, display_name, created_at)\n        VALUES (?1, ?2, ?3, ?4, ?5)\n        ",
-  "describe": {
-    "columns": [],
-    "parameters": {
-      "Right": 5
-    },
-    "nullable": []
-  },
-  "hash": "120b948148309b9e3eeb964f89f098163ceceaf8b1f2c76d81fab2811c362a63"
-}

.sqlx/query-3577e56d051f360866f893491584cccae7d2e985742ca78be06011e6c6640fc2.json

@@ -0,0 +1,44 @@
+{
+  "db_name": "SQLite",
+  "query": "\n        SELECT \n            id as \"id: Uuid\",\n            username,\n            email,\n            display_name,\n            created_at as \"created_at: chrono::DateTime<chrono::Utc>\"\n        FROM users\n        ",
+  "describe": {
+    "columns": [
+      {
+        "name": "id: Uuid",
+        "ordinal": 0,
+        "type_info": "Text"
+      },
+      {
+        "name": "username",
+        "ordinal": 1,
+        "type_info": "Text"
+      },
+      {
+        "name": "email",
+        "ordinal": 2,
+        "type_info": "Text"
+      },
+      {
+        "name": "display_name",
+        "ordinal": 3,
+        "type_info": "Text"
+      },
+      {
+        "name": "created_at: chrono::DateTime<chrono::Utc>",
+        "ordinal": 4,
+        "type_info": "Text"
+      }
+    ],
+    "parameters": {
+      "Right": 0
+    },
+    "nullable": [
+      false,
+      false,
+      true,
+      true,
+      false
+    ]
+  },
+  "hash": "3577e56d051f360866f893491584cccae7d2e985742ca78be06011e6c6640fc2"
+}

src/main.rs

@@ -1,12 +1,12 @@
-#[macro_use] extern crate rocket;
+#[macro_use]
+extern crate rocket;
 
-use rocket::serde::{Serialize, json::Json, Deserialize};
-use rocket_dyn_templates::{Template, context};
 use rocket::fs::FileServer;
-use rocket_db_pools::{sqlx, Database, Connection};
-use uuid::Uuid;
 use rocket::http::Status;
-
+use rocket::serde::{json::Json, Deserialize, Serialize};
+use rocket_db_pools::{sqlx, Connection, Database};
+use rocket_dyn_templates::{context, Template};
+use uuid::Uuid;
 
 #[derive(Database)]
 #[database("rss_data")]
@@ -53,7 +53,7 @@ struct NewUser {
 fn message() -> Json<Message> {
     Json(Message {
         a: -4,
-        b: "Hallo".to_string()
+        b: "Hallo".to_string(),
     })
 }
 
@@ -63,13 +63,12 @@ fn index() -> Template {
 }
 
 #[post("/users", data = "<new_user>")]
-async fn create_user(mut db: Connection<Db>, new_user: Json<NewUser>) -> Result<Json<User>, Status> {
+async fn create_user(
+    mut db: Connection<Db>,
+    new_user: Json<NewUser>,
+) -> Result<Json<User>, Status> {
     let new_user = new_user.into_inner();
-    let user = User::new(
-        new_user.username,
-        new_user.email,
-        new_user.display_name,
-    );
+    let user = User::new(new_user.username, new_user.email, new_user.display_name);
 
     let query = sqlx::query("INSERT INTO users (id, username, email, display_name, created_at) VALUES (?1, ?2, ?3, ?4, ?5)")
         .bind(user.id.to_string())
@@ -81,6 +80,37 @@ async fn create_user(mut db: Connection<Db>, new_user: Json<NewUser>) -> Result<
 
     match query {
         Ok(_) => Ok(Json(user)),
+        Err(e) => {
+            eprintln!("Database error: {}", e);
+            match e {
+                sqlx::Error::Database(db_err) if db_err.is_unique_violation() => {
+                    Err(Status::Conflict)
+                }
+                _ => Err(Status::InternalServerError),
+            }
+        }
+    }
+}
+
+#[get("/users")]
+async fn get_users(mut db: Connection<Db>) -> Result<Json<Vec<User>>, Status> {
+    let query = sqlx::query_as!(
+        User,
+        r#"
+        SELECT 
+            id as "id: Uuid",
+            username,
+            email,
+            display_name,
+            created_at as "created_at: chrono::DateTime<chrono::Utc>"
+        FROM users
+        "#
+    )
+    .fetch_all(&mut **db)
+    .await;
+
+    match query {
+        Ok(users) => Ok(Json(users)),
         Err(e) => {
             eprintln!("Database error: {}", e);
             Err(Status::InternalServerError)
@@ -88,10 +118,41 @@ async fn create_user(mut db: Connection<Db>, new_user: Json<NewUser>) -> Result<
     }
 }
 
+#[delete("/users/<user_id>")]
+async fn delete_user(mut db: Connection<Db>, user_id: &str) -> Status {
+    // Validate UUID format
+    let uuid = match Uuid::parse_str(user_id) {
+        Ok(uuid) => uuid,
+        Err(_) => return Status::BadRequest,
+    };
+
+    let query = sqlx::query("DELETE FROM users WHERE id = ?")
+        .bind(uuid.to_string())
+        .execute(&mut **db)
+        .await;
+
+    match query {
+        Ok(result) => {
+            if result.rows_affected() > 0 {
+                Status::NoContent
+            } else {
+                Status::NotFound
+            }
+        }
+        Err(e) => {
+            eprintln!("Database error: {}", e);
+            Status::InternalServerError
+        }
+    }
+}
+
 #[launch]
 fn rocket() -> _ {
     rocket::build()
-        .mount("/", routes![index, message, create_user])
+        .mount(
+            "/",
+            routes![index, message, create_user, get_users, delete_user],
+        )
         .mount("/static", FileServer::from("static"))
         .attach(Template::fairing())
         .attach(Db::init())