req.body is empty on express POST call

Question

I am trying ti write a sample POST call in express.

var express = require("express")
 , app = express()
 , server = require('http').createServer(app)
 , bodyParser = require('body-parser');
app.listen(80, function() {
 console.log("server started"); 
});
app.use(bodyParser.json());
app.use(bodyParser.urlencoded({extended: false}));
app.post("/test", function(req, res) {
 try {
 console.log(req.body);
 res.send("working " + req.body.name); 
 } catch(e) {
 console.log("error in test API" + e.message);
 res.end();
 }
});

But I am unable to access body data on the server. It is empty. Below is postman query.

enter image description here

• Rohit Agrawal: What data you are sending with the POST request
• Shubham: @RohitAgrawal it is a form data name=abcd. It is there in postman screenshot.
• Shubham: Empty object is there {}
• lunohodov: Do you want to access data passed from a form or data posted in JSON?

Answer 1

Select raw under body in Postman, not form-data if you want JSON data.

Then enter the data in JSON format. Postman should format it if you have the header set: Content-Type: application/json

Edit:

If you want to parse form-data you can't use body-parser as stated in the readme:

This does not handle multipart bodies, due to their complex and typically large nature. For multipart bodies, you may be interested in the following modules:

• busboy and connect-busboy
• multiparty and connect-multiparty
• formidable
• multer

Github link

• David: @Shubham Can you show a picture of Postman when you try sending it like that?
• Shubham: I want to access form-data and I changed content-type to application/json
• David: @Shubham Edited my answer.

Answer 2

To read as req.body you're missing the Content-Type : application/json header I think, add it and make the request into a raw json. Or else youre getting a string and cannot directly access it as req.body

eg :

{"name" : "abcd"}

(削除) Update :

If you need Form data use the bodyParser to convert text to json

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

(削除ここまで) Update 2 :

It seems the issue is with multipart/form-data you're using. To handle it you would need a specific framework like multer due to security issues. The below should work.

var multer = require('multer');
var upload = multer() ;
app.post('/test', upload.array(), function (req, res, next) {
 console.log(req.body);
});

• Kalana Demel: @Shubham Try setting extended: true
• Shubham: @KalanaDamel multer will work. I used that in separate project. In this form data there is no multipart data I guess. So why body-parser is not working.
• Kalana Demel: @Shubham multipart/form-data is considered as one type of html encoding, so when file uploads through this became a security issue and because of its complexity of data it was taken out of body parser and it was needed to use a middle-ware to access it.