Mongoose only saves _id and _v

Question

This is indeed a duplicate question however there is no answer.

The problem is that when I save a new record with mongoose through a post request, all that's saved is something like this:

{ "_id" : ObjectId("5d11590975c82f216eaa4712"), "__v" : 0 }

I am following this tutorial so the code should work fine, but regardless here it is:

the mongoose schema:

const mongoose = require('mongoose');
const Schema = mongoose.Schema;

let Todo = new Schema({
    todo_description: {
        type: String
    },
    todo_responsible: {
        type: String
    },
    todo_priority: {
        type: String
    },
    todo_completed: {
        type: Boolean
    }
});
module.exports = mongoose.model('Todo', Todo);

the code:

const express = require('express');
const app = express();
const bodyParser = require('body-parser');
const cors = require('cors');
const mongoose = require('mongoose');
const todoRoutes = express.Router();
const PORT = 4000;

let Todo = require('./todo.model');

app.use(cors());
app.use(bodyParser.json());

mongoose.connect('mongodb://127.0.0.1:27017/todos', { useNewUrlParser: true });
const connection = mongoose.connection;

connection.once('open', function() {
    console.log("MongoDB database connection established successfully");
})

todoRoutes.route('/').get(function(req, res) {
    Todo.find(function(err, todos) {
        if (err) {
            console.log(err);
        } else {
            res.json(todos);
        }
    });
});

todoRoutes.route('/:id').get(function(req, res) {
    let id = req.params.id;
    Todo.findById(id, function(err, todo) {
        res.json(todo);
    });
});

todoRoutes.route('/update/:id').post(function(req, res) {
    Todo.findById(req.params.id, function(err, todo) {
        if (!todo)
            res.status(404).send("data is not found");
        else
            todo.todo_description = req.body.todo_description;
            todo.todo_responsible = req.body.todo_responsible;
            todo.todo_priority = req.body.todo_priority;
            todo.todo_completed = req.body.todo_completed;

            todo.save().then(todo => {
                res.json('Todo updated!');
            })
            .catch(err => {
                res.status(400).send("Update not possible");
            });
    });
});

todoRoutes.route('/add').post(function(req, res) {
    let todo = new Todo(req.body);
    todo.save()
        .then(todo => {
            res.status(200).json({'todo': 'todo added successfully'});
        })
        .catch(err => {
            res.status(400).send('adding new todo failed');
        });
});

app.use('/todos', todoRoutes);

app.listen(PORT, function() {
    console.log("Server is running on Port: " + PORT);
});

the post request: the get request:

To confirm here's the output in mongodb:

Answer 1

Try using body-parser and use:

app.use(bodyParser.json());

In the app.js file

Answer 2

make sure you added app.use(express.json()) to your server.js file.

Answer 3

1:

Edit:

I also had this problem and I fixed Content-type: application / json and it worked

Answer 4

the problem is that the body needs to be Json(application/json) instead of Text

Answer 5

Everything is fine with your code

Just add this line to your todo.model.js

module.exports = mongoose.model('Todo', Todo);