app.post request is not working and giving me error

Question

I'm trying to build server side back-end code for my website. I tried app.get request in postman and it worked but when I tried app.post request in postman it didn't work and gave me errors.

I tried all the solution that was available online and I could understand (I'm Ubuntu user).

Error Screenshot that I get in Postman

The following image will show you the error and format I used in postman

Server.js File (main server file)

const express = require("express");
const bodyParser = require("body-parser");
const cookieParser = require("cookie-parser");

const app = express();
const mongoose = require("mongoose");
require("dotenv").config();

mongoose.Promise = global.Promise;
mongoose
  .connect(process.env.DATABASE, { useNewUrlParser: true })
  .then(() => console.log("MongoDB Connected"))
  .catch(err => console.log(err));

// // DB config
mongoose.set("useCreateIndex", true);

// const db = require("./config/keys").mongoURI;

// Connect to MongoDB

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

// Models
const { User } = require("./models/user");

//====================================================
//                      USERS
//====================================================

app.post("/api/users/register", (req, res) => {
  const user = new User(req.body);

  user.save((err, doc) => {
    if (err) return res.json({ success: false, err });
    res.status(200).json({ success: true, userdata: doc });
  });
});

app.get("/", (req, res) => res.send("hello world"));

const port = process.env.PORT || 3002;

app.listen(port, () => {
  console.log(`Server running on port ${port}`);
});

User Model file (models/user.js)

const mongoose = require("mongoose");

const userSchema = mongoose.Schema({
  email: {
    type: String,
    requrired: true,
    trim: true,
    unique: 1
  },
  password: {
    type: String,
    requrired: true,
    minlength: 5
  },
  name: {
    type: String,
    requrired: true,
    maxlength: 100
  },
  lastname: {
    type: String,
    requrired: true,
    maxlength: 100
  },
  cart: {
    type: Array,
    default: []
  },
  history: {
    type: Array,
    default: []
  },
  role: {
    type: Number,
    default: 0
  },
  token: {
    type: String
  }
});

const User = mongoose.model("User", userSchema);

module.exports = { User };

Use `:` instead of `=` in your request, since its JSON format — Rashomon, Apr 23 '19 at 12:07

score 0 · Answer 1 · answered Apr 23 '19 at 12:11

0

Postman request should be like below.

{
   "email": "rohit***@gmail.com",
   "password": "password@123",
   "name": "sher",
   "lastname": "lock"
}

answered Apr 23 '19 at 12:11

narayansharma91

2,273
1
12
20

score 0 · Answer 2 · answered Apr 23 '19 at 12:12

0

You are sending an invalid JSON.

Use this JSON for sending Request.

 {
      "email":"rohan3131313@gmail.com",
      "password":"password@123",
      "name":"sher",
      "lastname:"lock"
 }

answered Apr 23 '19 at 12:12

Jitendra virani

366
4
8

score 0 · Accepted Answer · answered Apr 23 '19 at 12:12

0

pass this has a raw data from postman and then call the post api

{
   "email": "rohan@getMaxListeners.com",
   "password":"pass@123",
   "name":"sher",
   "lastname":"lock"
}

answered Apr 23 '19 at 12:12

Narendra Chouhan

2,291
1
15
24

I'm getting another (Cannot POST /api/users/register) error now. – rohanisme Apr 23 '19 at 13:11
`app.use(bodyParser.urlencoded({ extended: false }));` make this changes and it will work for you, set extended: false; let me know if it work or not – Narendra Chouhan Apr 23 '19 at 13:16
I tried changing extended from true to false but it didn't work. – rohanisme Apr 23 '19 at 13:25
did you restart your node backend – Narendra Chouhan Apr 23 '19 at 13:26
Yes I restarted my node backend after changes. I'm also using nodemon but i still restarted. – rohanisme Apr 23 '19 at 13:31
try by removing the `{ extended: true }` from urlencoded in server.js file – Narendra Chouhan Apr 23 '19 at 13:39
"undefined extended: provide extended option node_modules/express/lib/router/layer.js:95:5" It gives this warning and on the postman it says "cannot found" instead of saying "Cannot Post". – rohanisme Apr 23 '19 at 13:48
https://stackoverflow.com/questions/35931135/cannot-post-error-using-express i think this will help you to solve your error – Narendra Chouhan Apr 23 '19 at 13:53
I found the mistake, "/" missing before api in the post request code. It got fixed. Thanks for the help. – rohanisme Apr 23 '19 at 14:22

app.post request is not working and giving me error

3 Answers3