authController.js

const express = require('express');

const User = require('../schema/User');

const router = express.Router();

router.post('/register', async (req, res) => {
    const { email } = req.body;

    try {

        if(await User.findOne({email})){
            return res.status(400).send({ error: 'User already exits' })
        }

        const user = await User.create(req.body);
        user.password = undefined;

        return res.send({user})

    }catch (err){
        return res.status(400).send( {error: 'Registration failed' + err})
    }
})

module.exports = (app) => app.use('/auth', router)

User.js

const mongoose = require('mongoose');
const bcrypt = require('bcryptjs');

const UserSchema = new mongoose.Schema({
    name: {
        type: String,
        required: true
    },
    email: {
        type: String,
        unique: true,
        required: true,
        lowercase: true
    },
    password: {
        type: String,
        required: true,
        select: false
    },
    createAt: {
        type: Date,
        default: Date.now
    }

})

UserSchema.pre('save', async function (next) {
    const hash = await bcrypt.hash(this.password, 10);
    this.password = hash;

    next();
})



const User = mongoose.model('User', UserSchema);

module.exports = User;