express js example
//to run : node filename.js
const express = require('express')
const app = express()
const port = 3000
app.get('/', (req, res) => res.send('Hello World!'))
app.listen(port, () => console.log(`Example app listening at http://localhost:${port}`))
//visit localhost:3000
// assuming you have done 1) npm init 2) npm install expressexpress get url parameters
app.get('/path/:name', function(req, res) {
res.send("tagId is set to " + req.params.name);
});app.post (req res) get data
const express=require('express');
const app=express();
//accept Post with no midleWare express
app.post("/register/",function(req,res){
var bodyStr = '';
req.on("data",function(chunk){
bodyStr += chunk.toString();
});
req.on("end",function(){
res.send(bodyStr);
});
});Copyright © 2021 Codeinu
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