CODEWITHSUNDEEP
node.jsexpress
Iftikhar Hussain
Iftikhar Hussain

Reputation: 305

why post json data not receive in node.js?

when i post json data on node server, it leads to error 'Response to preflight request doest't pass access control check' but when i post same request on php server it works . browser console picture

can someone tell me why this not working in node.js but when i tried to post data through postman on node server now no error it works.

postman picture

here is my nodeJS code 

const express = require('express');
const app = express();
app.use(express.json());

app.post('/post', function(req, res){
  res.header('Access-Control-Allow-Origin', '*');
  res.send(req.body);
})

and this is request code that is send from browser

function callAjax(){
  jQuery.ajax({
    method: 'POST',
    url:'http://localhost:3010/post',
    "headers": {
        "content-type": "application/json"
    },
    data: {
        email:'[email protected]'
    },
    success: function(data){
        console.log(data);
    },
    error: function(err){
        console.log(err);
    }
   });
 }

Upvotes: 1

Views: 2033

Answers (2)

Harish Kommuri
Harish Kommuri

Reputation: 2864

You have to use body-parser.

var bodyParser = require('body-parser');

app.use(bodyParser.json());

app.use(bodyParser.urlencoded({
   extended: true
}));


app.post('/post', function(req, res){
   res.setHeader('Access-Control-Allow-Origin', '*');

   res.json(req.body);
});

Upvotes: 3

Sanjay
Sanjay

Reputation: 1007

use cors module first:-

npm install --save cors
var cors = require('cors')
app.use(cors())

Upvotes: 1

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