could not get response from express.js server using postman

Question

when i make post request from postman, the request data was shown server but server response i.e status code and json object was not send to postman, postman was just loading... and after some time it says could not get response from the server.

here is my server.js class

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

var {mongoose} = require('./db/mongoose');
var {Todo} = require('./models/todo');
var {Users} = require('./models/Users');

var app = express();
app.use(bodyParser.json());

app.post('/todos', (req, res) =>{
var todo = new Todo({
text: req.body.text
});

todo.save().then((doc) => {
res.send(doc);
}, (e) => {
res.status(400).send(e);
});

});

app.listen(3000, () =>{
console.log('started at port 3000');
});

Add a `.catch(err => res.send(err))` to the `todo.save()`. It's probably throwing an exception, thus not resolving the promise. — Rodrigo Leite, Jul 28 '17 at 12:43
@malik so a POST to `http://localhost:3000/todos` ? Can you please post also your contents of `./db/mongoose`? — Paul, Jul 28 '17 at 13:22
@Paul this is the content of ./db/mongoose. var mongoose = require('mongoose'); mongoose.Promise = global.Promise; mongoose.createConnection('mongodb://localhost:27017/TodoApp'); module.exports = {mongoose}; — malik, Jul 28 '17 at 13:26

score 0 · Answer 1 · answered Jul 28 '17 at 13:32

There is some error in executing todo.save do console.log(e) to check what is the error throwing by mongo. Also you can send error in a response just to see what is going on, instead of writing res.status(400).send(e); write res.send(e) and it will send error as a response. "could not get response" error happens usually when you haven't send any response from the server. In your case you are sending response from your Promise resolved block but not from your error block.

Also make sure todo.save() return promise? may be you can achieve this by

todo.save(function(err,doc){
if(err){
return res.send(err);
}
res.send(doc);
})

in postman console it gave this error Error: read ECONNRESET — malik, Jul 28 '17 at 13:37
Its not working I even use above code. now showing error "socket hang up" — malik, Jul 28 '17 at 13:47

could not get response from express.js server using postman

1 Answers1