Node.js Express (handwritten version)

//myexpress.js
const http = require('http');
const url = require('url');
let routers = [];
class Application {
    get(path, hander) {
        routers.push({
            path,
            method: 'get',
            hander
        });
    }
    listen2() {
        const server = http.createServer(function (req, res) {
            const {
                pathname
            } = url.parse(req.url, true);

            var tet = routers.find(v= > {
                return v.path == pathname && req.method.toLowerCase() == v.method
            })

            tet && tet.hander(req, res);

        })
        // Add the listen method to the Application prototype to match the path and execute the corresponding Handerserver.listen(... arguments)// server.listen(aa,fn)}}module.exports = function () {
    return new Application();
}
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const express = require('./myexpress.js');

const app = express();
app.get('/'.(req,res) = > {
    res.end('Hello world')
})
app.get('/users'.(req,res) = > {
    res.end(JSON.stringify({name:'abcooooo'}))
})
app.get('/list'.(req,res) = > {
    res.end(JSON.stringify({name:'list'}))
})
app.listen2(3200 , () = > {
    console.log('Example listen at 3200')})Copy the code