workers Rust API-1

Cargo.toml

[package]
name = "workers-rs-2"
version = "0.1.0"
edition = "2021"

# https://github.com/rustwasm/wasm-pack/issues/1247
[package.metadata.wasm-pack.profile.release]
wasm-opt = false

[lib]
crate-type = ["cdylib"]

[dependencies]
worker = { version = "0.6.0", features = ["d1"] }
serde = { version = "1.0.188", features = ["derive"] }

[dev-dependencies]
tokio = { version = "1", features = ["full"] }

[profile.release]
lto = true
strip = true
codegen-units = 1

lib.rs

use serde::{Deserialize, Serialize};
use worker::*;

#[derive(Debug, Deserialize, Serialize)]
struct GenericResponse {
    status: u16,
    message: String,
}

#[event(fetch)]
async fn main(req: Request, env: Env, _ctx: Context) -> Result<Response> {
    Router::new()
        .get_async("/foo", handle_get)
        .post_async("/bar", handle_post)
        .delete_async("/baz", handle_delete)
        .run(req, env)
        .await
}

pub async fn handle_get(_: Request, _ctx: RouteContext<()>) -> worker::Result<Response> {
    Response::from_json(&GenericResponse {
        status: 200,
        message: "You reached a GET route!".to_string(),
    })
}

pub async fn handle_post(_: Request, _ctx: RouteContext<()>) -> worker::Result<Response> {
    Response::from_json(&GenericResponse {
        status: 200,
        message: "You reached a POST route!".to_string(),
    })
}

pub async fn handle_delete(_: Request, _ctx: RouteContext<()>) -> worker::Result<Response> {
    Response::from_json(&GenericResponse {
        status: 200,
        message: "You reached a DELETE route!".to_string(),
    })
}