body parser in express code example
Example 1: body parser express
//make sure it is in this order
npm i body-parser
const express = require('express')
const bodyParser = require('body-parser')
const app = express()
// parse application/x-www-form-urlencoded
app.use(bodyParser.urlencoded({ extended: false }))
// parse application/json
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: body parser use
var express = require("express");
var app = express();
var bodyParser = require("body-parser");
app.use(bodyParser.urlencoded({extended: true}));
Example 3: body-parser node
// Express/Connect top-level generic
// This example demonstrates adding a generic JSON and URL-encoded parser as a top-level middleware, which will parse the bodies of all incoming requests.
// This is the simplest setup.
var express = require('express')
var bodyParser = require('body-parser')
var app = express()
// parse application/x-www-form-urlencoded
app.use(bodyParser.urlencoded({ extended: false }))
// parse application/json
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 purpose
//body-parser helps parse json files
//you can use body-parser anytime you need to use a form to post
//data to a request
var bodyParser = require("body-parser");
app.use(bodyParser.urlencoded({extended: true}));
Example 5: body parser express
app.use(express.json()); //Used to parse JSON bodies
Example 6: express bodyparser
/** @format */
const express = require("express");
const app = express();
const mongoose = require("mongoose");
const bodyParser = require("body-parser");
const PORT = process.env.PORT || 3000;
// parse application/x-www-form-urlencoded
app.use(bodyParser.urlencoded({ extended: false }));
// parse application/json
app.use(bodyParser.json());
//connecting to db
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}`));