auth.js

const express = require('express')
const router = express.Router()
const mongoose = require("mongoose")
const User = mongoose.model("User")
const bcrypt=require("bcryptjs")
const jwt=require("jsonwebtoken")
const {secret_token} = require("../config/keys")
// //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
// const nodemailer = require('nodemailer')
// const sendgridTransport = require('nodemailer-sendgrid-transport')
// const transporter=nodemailer.createTransport(sendgridTransport({
//     auth:{
//         api_key:"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"
//     }
// }))

router.post('/signup',(req,res)=>{
    const {name,email,password,pic} =req.body
    if(!email || !name || !password){
        console.log("in...")
        return res.status(422).json({error:"please enter required fields"})
    }
    User.findOne({email:email})
    .then((saveduser)=>{
        console.log("...............")
        if(saveduser) {
            return res.status(422).json({error:"Email already exists"})
        }
        bcrypt.hash(password,12)
        .then(hashedpassword=>{
            const user = new User({
                name,
                email,
                password: hashedpassword,
                pic
            })
            user.save()
            .then(user=>{
                console.log(user)
                // transporter.sendMail({
                //     to:user.email,
                //     from:"no-reply@insta.com",
                //     subject:"signedup successfully",
                //     html:`<h1>Hi ${user.name},</h1>
                //         <h2>Welcome to Social Media Website</h2>`
                // })
                res.status(200).json({message:"saved successfully"})
            }).catch(err=>{
                console.log("error",err)
            })
        })
    }).catch(err=>{
        console.log("err:",err)
    })
})
router.post('/signin',(req,res)=>{
    const {email,password} =req.body
    if(!email || !password){
        return res.status(422).json({error:"please add email or password"})
    }
    User.findOne({email}).then(saveduser=>{
        if(!saveduser) {
            return res.status(422).json({error:"please enter valid email or password"})
        }
        bcrypt.compare(password,saveduser.password).then(match=>{
            if(match){
                const token = jwt.sign({_id:saveduser._id},secret_token)
                const {_id,name,email,followers,following,pic} = saveduser
                res.send({token,user:{_id,name,email,followers,following,pic}})
            }
            else{
                return res.status(422).json({error:"please enter valid email or password"})
            }
        }).catch(err=>{
            console.log("error:",err)
        })
    })
})
module.exports = router