with database

.env

 ACCESS_TOKEN=a1cf0e9b88b85a81ccfaebf1e7a1a5636fff70d16d9a68ee7c8f6e18985cbac68e6206175f319b0f045ca9554a38039cb11c50b18c92ab46abbd6d19b3904031
-REFRESH_ACCESS_TOKEN=1eab8976df88c553a16cecf187fc29c5cd9a16a5665c8571506acdb9d595587afbe76e8e2633fde572a20bb342d91bb4e508c26cb7837b62eedaffe73106d1f4
\ No newline at end of file
+REFRESH_ACCESS_TOKEN=1eab8976df88c553a16cecf187fc29c5cd9a16a5665c8571506acdb9d595587afbe76e8e2633fde572a20bb342d91bb4e508c26cb7837b62eedaffe73106d1f4
+MONGO_DB_URL = mongodb://localhost:27017/jwt_toots
\ No newline at end of file

authentication.js

 const jwt= require("jsonwebtoken")
+require('dotenv').config()
 
-const authontication=(req,res,next)=>{
-    const header = req.headers['authorization']
-    const token = header && header.split(' ')[1]
-    if(token == null)return res.status(400)
-    jwt.verify(token,process.env.ACCESS_TOKEN,(err,user)=>{
-        if(err) return res.status(403)
-        req.user = user
-    })
-    next()
-}
+// const authontication=(req,res,next)=>{
+//     const header = req.headers['authorization']
+//     const token = header && header.split(' ')[1]
+//     if(token == null)return res.status(400)
+//     jwt.verify(token,process.env.ACCESS_TOKEN,(err,user)=>{
+//         if(err) return res.status(403)
+//         req.user = user
+//     })
+//     next()
+// }
 
+const authontication =(req,res,next)=>{
+    const token  = req.header('auth-token')
+    if(!token)return res.status(401)
+    try {
+        const verified = jwt.verify(token,process.env.ACCESS_TOKEN)
+        req.user = verified
+        next()
+    } catch (err) {
+        res.status(400)
+    }
+}
 module.exports= authontication
\ No newline at end of file

models/User_model.js

+const mongoose = require('mongoose')
+
+const User_sechma = new mongoose.Schema({
+    name : {
+        type : String,
+        required : true,
+        min : 6,
+        max : 255
+    },
+    email : {
+        type : String,
+        required : true,
+        max : 255,
+        min : 6
+    },
+    password : {
+        type : String,
+        required : true,
+        max : 1024,
+        min : 6
+    },
+    date : {
+        type : Date,
+        default: Date.now()
+    }
+})
+module.exports = mongoose.model('user_data',User_sechma)
\ No newline at end of file

package.json

@@ -10,9 +10,11 @@
   "author": "",
   "license": "ISC",
   "dependencies": {
+    "bcryptjs": "^2.4.3",
     "dotenv": "^8.2.0",
     "express": "^4.17.1",
     "jsonwebtoken": "^8.5.1",
+    "mongoose": "^5.12.2",
     "nodemon": "^2.0.7"
   }
 }

routes.js

+require('dotenv').config()
 const express = require('express')
 const router = express.Router()
-const AUTH = require('./authentication.js')
-const jwt= require("jsonwebtoken")
+const User  = require('./models/User_model')
+const bcrypt = require('bcryptjs')
+const jwt = require('jsonwebtoken')
+// const AUTH = require('./authentication.js')
+// const jwt= require("jsonwebtoken")
 
-const post_data=[
-    {
-        name : "cool"
-    },
-    {
-        name:"coool1"
-    }
-]
+// const post_data=[
+//     {
+//         name : "cool"
+//     },
+//     {
+//         name:"coool1"
+//     }
+// ]
 
-router.get('/',AUTH,(req,res)=>{
-    const post=post_data.filter(post=> post.name === req.user.name)
-    if(post.length == 0){
-        res.json({message:"this is empty"})
-    }else{
-        res.json({data:post_data.filter(post=> post.name === req.user.name)})
-    }   
-})
-router.post('/login',(req,res)=>{
-    const name = req.body.name 
-    const user = {name : name}
-    const access_token=jwt.sign(user,process.env.ACCESS_TOKEN,{expiresIn : '100s'})
-    res.json({access_token:access_token})
+// router.get('/',AUTH,(req,res)=>{
+//     const post=post_data.filter(post=> post.name === req.user.name)
+//     if(post.length == 0){
+//         res.json({message:"this is empty"})
+//     }else{
+//         res.json({data:post_data.filter(post=> post.name === req.user.name)})
+//     }   
+// })
+// router.post('/login',(req,res)=>{
+//     const name = req.body.name 
+//     const user = {name : name}
+//     const access_token=jwt.sign(user,process.env.ACCESS_TOKEN,{expiresIn : '100s'})
+//     res.json({access_token:access_token})
+// })
+router.post('/register',async(req,res)=>{
+
+    // to check wheather email is in database or not
+    const exist_email = await User.findOne({email : req.body.email})
+    if(exist_email) return res.status(400).send("this email already exist")
+    
+    const salt = await bcrypt.genSalt(10)
+    const hashedPassword = await bcrypt.hash(req.body.password,salt)
+    //to create new user if not exist
+    const user  = new User({
+        name : req.body.name,
+        password : hashedPassword,
+        email : req.body.email, 
+    })
+    try {
+        const save_data =await user.save()
+        res.send(save_data)
+    } catch (error) {
+        res.status(400).send(error)
+    }
 })
 
+router.post('/login',async(req,res)=>{
+    const user = await User.findOne({email : req.body.email})
+    if(!user) return res.status(400).send("email or password is not correct")
+
+    const validpass = await bcrypt.compare(req.body.password,user.password)
+    if(!validpass)return res.status(400).send("invalid password")
+     
+    const token = jwt.sign({_id : user._id},process.env.ACCESS_TOKEN)
+    res.header('auth-token',token).send(token)
+})
 module.exports = router
\ No newline at end of file

server.js

@@ -3,11 +3,15 @@ const express = require('express')
 const app = express()
 const jwt = require('jsonwebtoken')
 const router = require('./routes.js')
+const mongoose = require('mongoose')
 //to parse the data in json
 app.use(express.json())
+mongoose.connect(process.env.MONGO_DB_URL,{ useNewUrlParser: true ,useUnifiedTopology: true },()=>console.log("db"))
 
 //api for jwt authentication
 app.use('/api',router)
 
 //port config
-app.listen(3000,()=>console.log("this server is running at 3000"))
\ No newline at end of file
+app.listen(3000,()=>console.log("this server is running at 3000"))
+
+