express body parse code example
Example 1: body parser express
npm i body-parser
const express = require('express')
const bodyParser = require('body-parser')
const app = express()
app.use(bodyParser.urlencoded({ extended: false }))
app.use(bodyParser.json())
app.use(function (req, res) {
res.setHeader('Content-Type', 'text/plain')
res.write('you posted:\n')
res.end(JSON.stringify(req.body, null, 2))
})
Example 2: express bodyparser
const express = require("express");
const app = express();
const mongoose = require("mongoose");
const bodyParser = require("body-parser");
const PORT = process.env.PORT || 3000;
app.use(bodyParser.urlencoded({ extended: false }));
app.use(bodyParser.json());
try {
mongoose.connect('mongodb://localhost/YOUR_DB_NAME', {
useNewUrlParser: true,
useUnifiedTopology: true,
useCreateIndex: true,
}, () =>
console.log("connected"));
} catch (error) {
console.log("could not connect");
}
app.get("/", (req, res) => {
res.send("home");
});
app.listen(PORT, () => console.log(`Server is listening on port ${PORT}`));
Example 3: express bodyparser
const express = require('express')
const bodyParser = require('body-parser')
const app = express()
app.use(bodyParser.urlencoded({ extended: false }))
app.use(bodyParser.json())
app.use(function (req, res) {
res.setHeader('Content-Type', 'text/plain')
res.write('you posted:\n')
res.end(JSON.stringify(req.body, null, 2))
})
Example 4: bodyparser express
var express = require('express')
var bodyParser = require('body-parser')
var app = express()
var jsonParser = bodyParser.json()
var urlencodedParser = bodyParser.urlencoded({ extended: false })
app.post('/login', urlencodedParser, function (req, res) {
res.send('welcome, ' + req.body.username)
})
app.post('/api/users', jsonParser, function (req, res) {
})
Example 5: app use body parser
app.use(bodyParser.json())