Basic crud with Node and Mongo

Himanshu_Kumar/NodeJWT/database/config.js

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+const mongoose=require('mongoose');
+
+const url="mongodb://localhost:27017/nodeJWT"
+
+
+mongoose.Promise=global.Promise;
+
+mongoose.connect(url,{useNewUrlParser:true,keepAlive:1}).then((res)=>{
+    console.log("Established connection  with database");
+    //console.log(res);
+}).catch(error=>{
+    console.log(error.message);
+})
+module.exports=mongoose;

Himanshu_Kumar/NodeJWT/index.js

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+const express=require('express');
+const jwt=require('jsonwebtoken');
+const app=express();
+const User = require('./schema/users');
+
+app.use(express.json());
+
+app.get('/',(req,res) => {
+    res.json({
+        message: "welcome to this world"
+    });
+});
+
+app.get('/api/users', async(req, res) => {
+    try{
+        let users = await User.find({});
+        // users = JSON.stringify(users);
+        // users = JSON.parse(users);
+        console.log(users);
+        res.send(users);
+    }catch(err){
+        console.log(err);
+    }
+});
+
+
+app.post('/posts',verifyToken,(req,res) => {  //protected route 
+    jwt.verify(req.token,'secretkey',(err,authData)=>{
+        if(err){
+            res.sendStatus(403);
+        }
+        else{
+            res.json({
+                message: "Post method",
+                authData
+            });
+        }
+    })
+});
+
+
+app.post('/signin',async(req,res) => {
+    let user = await User.findOne({email: req.body.email,pass: req.body.pass });
+    console.log(user);
+    if(!user){
+        return res.status(400).send('User with given email, password isn\'t matching');
+        }
+    else{
+    const token = jwt.sign({user}, 'secretkey'); 
+    res.json({
+        token
+    });   } 
+
+});
+
+function verifyToken(req, res, next){
+    const bearerHeader=req.headers['authorization'];
+    console.log("bearereHeader",bearerHeader);
+    if(typeof bearerHeader!=='undefined'){
+        const bearer=bearerHeader.split(' ');
+        const bearerToken=bearer[1];
+        req.token=bearerToken;
+        next();
+    }
+    else{
+        res.sendStatus(403);
+    }
+
+}
+
+app.listen(5050, ()=>{
+    console.log("Server started on port 5050")
+})