Unable to create a document using a model in Mongoose

Question

I'm trying to create a REST api using express and mongoose. Below is the code for User model ( user.server.model.js ).

const mongoose = require('mongoose');

var userSchema = new  mongoose.Schema({
    name: {
        first: { type: String, required: true },
        last: { type: String, required: true }
    },
    loginId: { type: String, required: true, unique: true },
    password: { type: String, required: true },
    location: String,
    meta: { age: Number, website: String },
    isActive: Boolean,
    createdOn: { type: Date, default: Date.now },
    updatedOn: Date
});

var User = mongoose.model('User', userSchema);

exports.User = User;

I'm trying to use this User model in express route ( routes.js ) as below:

const express = require('express'),
    User = require('../models/user.server.model'),
    router = express.Router();

router.route('/users')
    .post((req, res) => {
        let user = new User({
            name: req.body.name,
            loginId: req.body.loginId,
            password: req.body.password,
            location: req.body.location,
            meta: req.body.meta,
            createdOn: req.body.createdOn,
            updatedOn: req.body.updatedOn
        });

        user.save((err) => {
            if (err) {
                res.send(err);
            }
            else{
                res.json({ message: 'User created' });
            }
        });
    });

module.exports = router;

But when I try to test this api using Postman extension in Chrome I'm getting below error

TypeError: User is not a constructor

Node Version: 6.0

Can anyone please advise whats going wrong here.

Answer 1

您正在使用require值，直接作为User ，所以你应该改变exports.User到module.exports在user.server.model.js：

module.exports = User;