Implement users list and get-by-id endpoints

src/api/users.rs

@@ -0,0 +1,26 @@
+use axum::{extract::{Path, State}, http::StatusCode, Json};
+use uuid::Uuid;
+use crate::models::user::User;
+
+pub async fn list_users(
+    State(pool): State<sqlx::PgPool>,
+) -> Result<Json<Vec<User>>, StatusCode> {
+    let users = sqlx::query_as::<_, User>("SELECT id, username, email FROM users ORDER BY created_at DESC")
+        .fetch_all(&pool)
+        .await
+        .map_err(|_| StatusCode::INTERNAL_SERVER_ERROR)?;
+    Ok(Json(users))
+}
+
+pub async fn get_user(
+    State(pool): State<sqlx::PgPool>,
+    Path(id): Path<Uuid>,
+) -> Result<Json<User>, StatusCode> {
+    sqlx::query_as::<_, User>("SELECT id, username, email FROM users WHERE id = $1")
+        .bind(id)
+        .fetch_optional(&pool)
+        .await
+        .map_err(|_| StatusCode::INTERNAL_SERVER_ERROR)?
+        .map(Json)
+        .ok_or(StatusCode::NOT_FOUND)
+}