From 43267ef2872f323c3deb9ffd48b813a6ad4bdee1 Mon Sep 17 00:00:00 2001
From: Meet Shah <shahmeet97592@gmail.com>
Date: Thu, 9 Feb 2023 10:42:24 +0530
Subject: [PATCH] created api for registration and for login with token

---
 backend/index.js               |  8 +++++
 backend/routes/login.js        | 54 ++++++++++++++++++++++++++++++++++
 backend/routes/registration.js | 53 +++++++++++++++++++++++++++++++++
 3 files changed, 115 insertions(+)
 create mode 100644 backend/routes/login.js

diff --git a/backend/index.js b/backend/index.js
index 82953b6..61f0871 100644
--- a/backend/index.js
+++ b/backend/index.js
@@ -3,9 +3,14 @@ const mongoose = require("mongoose");
 const app = express();
 const user = require('./models/User');
 const contact = require('./models/Contact');
+const registrationRoute = require('./routes/registration')
+const loginRoute = require('./routes/login');
 const bcrypt = require("bcrypt");
+const jwt = require('jsonwebtoken');
+const cors = require("cors");
 const port = 8086;
 app.use(express.json());
+app.use(cors());
 
 const url = `mongodb+srv://admin:admin@cluster0.kzqiv0i.mongodb.net/?retryWrites=true&w=majority`
 
@@ -17,4 +22,7 @@ mongoose.connect(url, (err)=>{
     }
 })
 
+app.use('/api', registrationRoute);
+app.use('/api', loginRoute);
+
 app.listen(port, () => console.log(`App listening to port ${port}`))
\ No newline at end of file
diff --git a/backend/routes/login.js b/backend/routes/login.js
new file mode 100644
index 0000000..8a8eba7
--- /dev/null
+++ b/backend/routes/login.js
@@ -0,0 +1,54 @@
+const express = require("express");
+const router = express.Router();
+const user = require('../models/User');
+const bcrypt = require("bcrypt");
+const jwt = require("jsonwebtoken");
+const secret = 'RESTAPI'
+
+router.post('/login', async (req, res)=>{
+    try{
+        console.log(req.body);
+        const { email, password } = req.body;
+        const user_obj = await user.findOne({ email });
+        if(!user_obj){
+            return res.status(400).json({
+                status: "Failed",
+                message: "User not registered"
+            })
+        }
+        bcrypt.compare(password, user_obj.password, (err, result)=>{
+            if(err){
+                return res.status(400).json({
+                    status:"Failed",
+                    message:err.message
+                })
+            }
+            if(result){
+                const token = jwt.sign({
+                    exp: Math.floor(Date.now() / 1000) + (60 * 60),
+                    data: user_obj._id
+                  }, secret);
+
+                return res.json({
+                    status:"Success",
+                    message:"Login Successful",
+                    token
+                })
+            }else{
+                return res.status(400).json({
+                    status:"Failed",
+                    message:"Invalid credentials"
+                })
+            }
+        })
+
+    } catch(e){
+        return res.status(500).json({
+            status:"Failed",
+            message:e.message
+        })
+    }
+})
+
+
+module.exports = router
\ No newline at end of file
diff --git a/backend/routes/registration.js b/backend/routes/registration.js
index e69de29..b2e036f 100644
--- a/backend/routes/registration.js
+++ b/backend/routes/registration.js
@@ -0,0 +1,53 @@
+const express = require("express");
+const router = express.Router();
+const user = require('../models/User');
+const bcrypt = require("bcrypt");
+const jwt = require("jsonwebtoken");
+const secret = 'RESTAPI'
+
+router.get('/register', (req, res)=>{
+    res.send("Welcome to Registration");
+})
+
+router.post('/register', async (req, res) => {
+    try {
+        console.log(req.body);
+        const { email, password } = req.body;
+        const user_obj = await user.findOne({ email });
+        if (user_obj) {
+            return res.status(409).json({
+                status: "Failed",
+                message: "User already exist"
+            }); ``
+        }
+        bcrypt.hash(password, 10, async (err, hash) => {
+            if (err) {
+                return res.status(500).json({
+                    status: "Failed",
+                    message: err.message
+                })
+            }
+            const data = await user.create({
+                email,
+                password: hash
+            });
+            res.json({
+                status: "success",
+                message: "Registration Successful",
+                data
+            })
+        })
+    } catch(e){
+        res.status(500).json({
+            status:"Failed",
+            message:e.message                
+        })
+    }
+    
+    
+})
+
+
+    
+
+module.exports = router
\ No newline at end of file