worktopCloudflare Workers 的下一代 Web 框架
worktop 是面向 Cloudflare Workers 的下一代 Web 框架。
特性：
- 超轻量级
- 一流的 TypeScript 支持
- 自定义中间件支持
- 用于点菜功能的组织良好的子模块*
- 包括支持模式定义的路由器
- 熟悉的请求-响应处理程序 API
- 支持
async/await处理程序 - 完全 treeshakable
import { Router } from 'worktop';
import * as Cache from 'worktop/cache';
import { uid as toUID } from 'worktop/utils';
import { read, write } from 'worktop/kv';
import type { KV } from 'worktop/kv';
declare var DATA: KV.Namespace;
interface Message {
id: string;
text: string;
// ...
}
// Initialize
const API = new Router();
API.add('GET', '/messages/:id', async (req, res) => {
// Pre-parsed `req.params` object
const key = `messages::${req.params.id}`;
// Assumes JSON (can override)
const message = await read<Message>(DATA, key);
// Alter response headers directly
res.setHeader('Cache-Control', 'public, max-age=60');
// Smart `res.send()` helper
// ~> automatically stringifies JSON objects
// ~> auto-sets `Content-Type` & `Content-Length` headers
res.send(200, message);
});
API.add('POST', '/messages', async (req, res) => {
try {
// Smart `req.body` helper
// ~> parses JSON header as JSON
// ~> parses form-like header as FormData, ...etc
var input = await req.body<Message>();
} catch (err) {
return res.send(400, 'Error parsing request body');
}
if (!input || !input.text.trim()) {
return res.send(422, { text: 'required' });
}
const value: Message = {
id: toUID(16),
text: input.text.trim(),
// ...
};
// Assumes JSON (can override)
const key = `messages::${value.id}`;
const success = await write<Message>(DATA, key, value);
// ^ boolean
// Alias for `event.waitUntil`
// ~> queues background task (does NOT delay response)
req.extend(
fetch('https://.../logs', {
method: 'POST',
headers: { 'content-type': 'application/json '},
body: JSON.stringify({ success, value })
})
);
if (success) res.send(201, value);
else res.send(500, 'Error creating record');
});
API.add('GET', '/alive', (req, res) => {
res.end('OK'); // Node.js-like `res.end`
});
// Attach "fetch" event handler
// ~> use `Cache` for request-matching, when permitted
// ~> store Response in `Cache`, when permitted
Cache.listen(API.run);
评论