DefinitelyTyped/types/micro/micro-tests.ts

import { json, RequestHandler, buffer, text, send, createError } from 'micro'
import micro from 'micro'

// Json sample

export const jsonHandler: RequestHandler = async (req, res) => {
    const data = await json(req)
    console.log(data)

    return 'Data logged to your console'
}

// socket.io chat app sample

const html = '<div>some html stuff</div>'

const server = micro(async (req, res) => {
    console.log('Serving index.html');
    res.end(html);
});

import * as socketIO from 'socket.io'

const io = socketIO(server);

server.listen(4000);

// Micro expects a function to be exported
module.exports = () => console.log('YOLO');

// body parsing sample

const bodyParsingHandler: RequestHandler = async (req, res) => {
    const buf = await buffer(req)
    console.log(buf)
    // <Buffer 7b 22 70 72 69 63 65 22 3a 20 39 2e 39 39 7d>
    const txt = await text(req)
    // '{"price": 9.99}'
    const js: any = await json(req)
    // { price: 9.99 }
    console.log(js.price)
    return ''
}

// send different status code sample

const statusHandler: RequestHandler = async (req, res) => {
    const statusCode = 400
    const data = { error: 'Custom error message' }

    send(res, statusCode, data)
}

// createError sample

const errorHandler: RequestHandler = async (req, res) => {
    const data = { error: 'Custom error message' }

    if (data.error) {
        throw createError(429, 'Rate limit exceeded')
    }
}