Making a Post Route - Githubissues

So far, we have only made GET requests to our server. A POST request can send data securely through the request body. In order to make POST requests, first we need to include the "body-parser" library from our node_modules (included with express). Add these lines after the app variable:

const bodyParser = require('body-parser');
app.use(bodyParser.json());

Let's write a function to handle a POST request made to the 'login' endpoint, as if a user was trying to log in:

app.post('/login',function(req,res){
    const username=req.body.username;
    const password=req.body.password;

    const mockUsername="billyTheKid";
    const mockPassword="superSecret";

    if (username===mockUsername && password===mockPassword){
        res.json({
            success: true,
            message: 'password and username match!',
            token: 'encrypted token goes here'
        })
    } else {
        res.json({
            success: false,
            message: 'password and username do not match'
        })
    }
})

Your entire file should look like this now:

const express = require('express');
const app = express();
const bodyParser = require('body-parser');

app.use(bodyParser.json())

const mockUserData=[
    {name:'Mark'},
    {name:'Jill'}
]

app.get('/users',function(req,res){
    res.json({
        success: true,
        message: 'successfully got users. Nice!',
        users: mockUserData
    })
})
// colons are used as variables that be viewed in the params
app.get('/users/:id',function(req,res){
    console.log(req.params.id)
    res.json({
        success: true,
        message: 'got one user',
        user: req.params.id
    })
})

app.post('/login',function(req,res){
    // Typically passwords are encrypted using something like bcrypt before sending to database
    const username=req.body.username;
    const password=req.body.password;

    // This should come from the database
    const mockUsername="billyTheKid";
    const mockPassword="superSecret";

    if (username===mockUsername && password===mockPassword){
        // In practice, use JSON web token sign method here to make an encrypted token
        res.json({
            success: true,
            message: 'password and username match!',
            token: 'encrypted token goes here'
        })
    } else {
        res.json({
            success: false,
            message: 'password and username do not match'
        })
    }

})

app.listen(8000,function(){console.log('server is listening')})

Time to commit our changes!

git add server.js
git commit -m"add login POST route"
git push origin master

MianJawadAhmad / node-express-course

Making a Post Route #7