Rest API with Express ( starter)

 1. install express

npm init

npm install --save express

const express = require('express');

const app = express();

for nodemon use it as development dependency

npm install --save-dev nodemon

and in the scripts use start for nodemon app.js

For following MVC way model view and controller

create 2 folders controllers and routers => controllers will have logic after routes are handled

and in routes routing is handled

Under Routes > routes.js

1. use express 

then routes = express. router()

const express = require('express');

const router = express.Router();

this router has to be exported as module

module.exports=router;

for defining routes use 

router.get('/post',feedcontroller.getpost)

under feed controller => feed.js

create a function for the each routes as diffrent modiles

exports.getPosts=(req,res,next)=>{

    res.json(

        {posts:[{title:"first post",content:"first post content"}]}

        );

}

As it is Api so response is set as Json

router.get('/posts',feedController.getPosts);

in app.js

app.use('/feed',feedrouter);

app.listen(8080);

for parsing incomming request body parser is to be used as json

install it as

npm install --save body-parser

app.use(bodyParser.json());

extracting data from body

exports.createPosts=(req,res,next)=>{

    const title = req.body.title;

    const content= req.body.content;

    res.status(201).json({

        message:'Post created',

        post:{

            id: new Date().toISOString(),

            title:title,

            content:content}

    }    );

};