kodaliakhil / roomies-backend Goto Github PK

Use --> npm init

Use --> npm i express dotenv

• dotenv is where we store credentials and others sensitive info.

• In server.js

require('dotenv').config()
const express = require('express')
const app = express()
const PORT = process.env.PORT || 5500

app.get('/',(req,res) =>{
    res.send("Hello from backend")
})

app.listen(PORT, () => console.log(`Listening on port ${PORT}`))

• Install nodemon npm i nodemon
• add these in scripts in package.json

"scripts": {
    "test": "echo \"Error: no test specified\" && exit 1",
    "dev": "nodemon server.js",
    "start": "node server.js"
  },

• run server.js npm run dev in terminal

• create a file routes.js in backend folder where we write our routes
• Import Router from express

  const router = require("express").Router();
  //Write routes
  router.get("/", (req, res) => {
  res.send("Hello from backend");
  });
  router.post("/api/send-otp", (req, res) => {
  res.send("Hello from OTP Route");
  });
    module.exports = router;
  

-import and use our routes in server.js

const router = require("./routes");
app.use(router);

• Instead of writing the logic in out router file create a controllers folder and write the logic in these files
• Here we wrap our methods in a class and export the class

class AuthController {

}
module.exports = new AuthController();

• Now we use them in out Routes.

const authController = require('./controllers/auth-controller');
router.post("/api/send-otp", authController.sendOtp);

• We can create services which can be used in our controllers logic
• For this we create a folder named services and write all our services in this folder
• Here again we wrap our methods in a class and export the class

const crypto = require("crypto");

class OtpService {
  generateOtp() {
    const otp = crypto.randomInt(1000, 9999);
    return otp;
  }
  sendBySms() {}
  verifyOtp() {}
}
module.exports = new OtpService();