Learn ROCKET with Real Code Examples

#[macro_use] extern crate rocket;
use rocket::serde::{json::Json, Deserialize, Serialize};
use std::sync::Mutex;

#[derive(Serialize, Deserialize, Clone)]
struct Todo {
    id: u32,
    title: String,
    completed: bool,
}

struct AppState {
    todos: Mutex<Vec<Todo>>,
}

#[get("/todos")]
fn get_todos(state: &rocket::State<AppState>) -> Json<Vec<Todo>> {
    let todos = state.todos.lock().unwrap();
    Json(todos.clone())
}

#[post("/todos", format = "json", data = "todo")]
fn add_todo(todo: Json<Todo>, state: &rocket::State<AppState>) {
    let mut todos = state.todos.lock().unwrap();
    todos.push(todo.into_inner());
}

#[launch]
fn rocket() -> _ {
    rocket::build()
        .manage(AppState { todos: Mutex::new(Vec::new()) })
        .mount("/", routes![get_todos, add_todo])
}

Demonstrates a simple Rocket application with routes for listing and creating Todo items using type-safe request handling.