CODEWITHSUNDEEP
javascriptnode.jsjsonexpressbody-parser
Salem Hussein
Salem Hussein

Reputation: 29

I keep getting undefined from node js express post request body

I try to make to get post req.body value but I keep getting undefined when I console.log I am using ( "express": "^4.17.1", ) I tried without body-parser and with body-parser, I keep getting the same result I tried all solutions available in StackOverflow but I keep getting the same result as you can see in the server.js

//jshint esversion:6

const express = require("express");
const bodyParser = require("body-parser");
const _ = require("lodash");
const mongoose = require("mongoose");
const cors = require('cors');

const app = express();
app.use(express.json());
app.use(express.urlencoded({extended:true}));
//app.use(bodyParser.urlencoded({ extended: true }))
//var urlencodedParser = bodyParser.urlencoded({ extended: true })
app.use(express.static("public"));
app.use(cors());


app.get("/", (req, res) => 
{
    res.send("Hello");
});

app.post("/login", async (req, res) => {
    // const username = req.body.username;
    // const  password  = req.body.password;
    const {username , password } = req.body;
    console.log("username : " + username);
    console.log(req.body);
    res.json(username);
});



let port = process.env.PORT;
if (port == null || port == "") {
  port = 5000;
}

app.listen(port, function() {
  console.log("Server has started Successfully at port " + port);
});

and this is the postman request

localhost:5000/login?username="salem"&password=1234567

and bellow the package.json

{
  "name": "server",
  "version": "1.0.0",
  "description": "",
  "main": "server.js",
  "scripts": {
    "test": "echo \"Error: no test specified\" && exit 1"
  },
  "author": "Salem",
  "license": "ISC",
  "dependencies": {
    "body-parser": "^1.19.0",
    "cors": "^2.8.5",
    "express": "^4.17.1",
    "lodash": "^4.17.21",
    "mongoose": "^5.13.2"
  }
}

I hope this gives a clear idea about my issue

Best Regards Salem

Upvotes: 0

Views: 1504

Answers (2)

Rajesh Verma
Rajesh Verma

Reputation: 307

You have to send the user details to the body from the postman or you can use the query object to retrieve the same from the URL.

see req.query

Upvotes: 0

Suyash Gaur
Suyash Gaur

Reputation: 2891

You are passing data as Query Parameters

localhost:5000/login?username="salem"&password=1234567

but fetching value from the req.body

const {username , password } = req.body;

What you should use is :

var username = req.query.username;
var password = req.query.password;

Upvotes: 4

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