practice.js

// server/models/Profile.js
// Schema - attribute that validate data storing
const mongoose = require("mongoose");

const Profile = new mongoose.Schema({
  // Mongoose provide lot of prebuilt tools for validation that makes our data more consistence and enhance data integrations
  firstName: { type: String, default: "", trim: true },
  lastName: { type: String, default: "", trim: true },
  age: { type: Number, default: 0 },
  team: { type: String, default: "", trim: true },
  position: { type: String, default: "", trim: true },
});

module.exports = mongoose.model("Profile", Profile);

// Data querying is done in controller
const express = require("express");
const router = express.Router();

const Profile = require("../models/Profile.js");

router.get("/profile", (req, res) => {
  Profile.find() // Query for every data in our mongoDB Profile collection
    .then((profiles) => {
      // success Block
      res.json({
        confirmation: "success",
        data: profiles,
      });
    })
    .catch((err) => {
      // error Block
      res.status(404).json({ confirmation: "fail", message: err.message });
    });
});

module.exports = router;

// In database I have to learn about primary and foreign key and its equivalent in MongoDB as _id and reference
// reference in mongoDB is useful for better schema design
// $lookup -- to join different collections in mongoDB Database

// $populate -- alternative for $lookup in mongoose ODM used for referencing collections in mongoDB Database
// aggregation query in Mongoose for dabase computation

/*
** Important Node concepts 
-- HTTP 
-- EVENT LOOP 
-- EVENT EMITTER
-- NODE STREAM -- To work with bigger size files 

// Command to remove git tracking from a repo/folder
rmdir -Force -Recurse .git 
rd /s /q .git
*/