Rocket — A Web Framework for Rust with Focus on Usability

# Cargo.toml
[dependencies]
rocket = "0.5"
serde = { version = "1", features = ["derive"] }
rocket_dyn_templates = { version = "0.2", features = ["tera"] }

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

#[derive(Serialize, Deserialize)]
#[serde(crate = "rocket::serde")]
struct Asset {
    repo: String,
    stars: u32,
}

#[get("/api/assets")]
fn list() -> Json<Vec<Asset>> {
    Json(vec![
        Asset { repo: "react".into(), stars: 230000 },
        Asset { repo: "vue".into(), stars: 210000 },
    ])
}

#[post("/api/assets", format = "json", data = "<asset>")]
fn create(asset: Json<Asset>) -> Json<Asset> {
    Json(asset.into_inner())
}

#[launch]
fn rocket() -> _ {
    rocket::build().mount("/", routes![list, create])
}