Building an E-commerce Website in Backend Development

Building an E-commerce Website:-

LOGIC BUILDING E-BOOK :-

Understand the core fundamentals of app building from industry experts and build an E-Commerce application. Learning is meaningful when you can apply the concepts and solve real-world problems. We will explore this possibility in this E-book.

TOPIC COVER IN THIS E-BOOK:-

1:-Introduction to NodeJS and NPM:-

● Intro to Nodejs, Brief discussion on V8 Engine.

● Hello World in NodeJS - writing and executing the code using VSCode Terminal.

● Exporting functionalities in NodeJS using Module.exports and exports.

● Importing functionalities in NodeJS using require.

● Intro to NPM

● Installing modules locally and globally using Npm.

● Uninstalling modules using Npm.

● Initialising an NPM project, brief discussion on Package.json.

● What are core modules of Node?

● Introduction to the FS core module of Node.

2:- OOPs: Intro to OOPs in JS:-

3:-Async Programming: Intro to Async JS 1

4:-Async Programming: Intro to Async JS 2

5:-Setting up HTTP Server

6:-Introduction to Express and REST

7:-Introduction to MySQL:-

Topics: -

● FileSystem

● Introduction To Database

○ Component of Database

○ DBMS

○ Types of Database

● MySQL

● MySQL Queries

○ Data Definition Language (DDL)

○ Data Manipulation Language (DML)

○ Data Query Language (DQL)

○ Data Control Language (DCL)

○ Transaction Control Language (TCL)

8:- Problem Solving on SQL queries:-

9:- Sequelize ORM:-

Topics to be Covered

● ORM

● Sequelize

● Basic Model Querying Techniques

● Associations

10:- Introduction to MVC:-

What is MVC .?

11:-Introduction to the Ecommerce Application:-

Agenda

● We will be introduced to the eCommerce Application backend and various scopes we have here to do.

● We will discuss the resource and their attributes for category table in database.

● We will Identify the RESTful URIs which needs to be created in this project. ● We will initializing the project structure and setup our database.

● We will get to the usage of .env file for setting the environment related parameters.

.Introduction to REST APIs

.Introduction to Web Application

Topics discussed :-

● Example of amazon or flipkart and talk about the different use cases.

● The different categories and large number of products that these applications server.

● How a user is authenticated.

● How a user is able to add items in the cart and then places the order.

12:- App Building: Ecommerce Website - Home Page and Product List Page ".

13:- Ecommerce Application Contd.- Category Controller, Users and Product Flow

Agenda

● We are going to discuss the category in reference to an eCommerce application

● We will create the schema for the Category resource

● And then we will implement the RESTful endpoints for creating CRUD operation on Category.

14:- Create the REST APIs for Products

Agenda

● We will learn about Products in reference to an eCommerce application

● We will create the schema for the Product resource

● Then we will implement the RESTful endpoints for creating CRUD operation on Products

Understanding the use cases around Products

● API to create a new Product

● API to get all the products

● API to get a product based on the id

● API to update a product

● API to delete the product

15:- Adding the search capabilities on products and middleware for validation:-

Agenda

● We will be going to establish the relationship between Category and Product resource.

● We will then add custom middlewares for the request validations.

● And we will also implement the filter query parameters in the REST APIs.

16:- "Authentication and Authorization ":-

Agenda

● We will understand what is Authentication and Authorization.

● We will learn what are different types of Authentications: Basic Auth |Bearer Token Auth.

● We will create user SignUp and SignIn APIs using JWT token.

17:- Authorization using JWT on users and carts.

Agenda

● We will try to understand the challenges with the current APIs from the security perspective.

● We will then process to make the category and product APIs use the JWT tokens so that only authenticated ADMIN user should be able to create/update/delete products and categories.

● We will be creating CART APIs.

● We will make sure that only authenticated User should be able to create a cart, add/remove items from the cart.

18:-Placing orders for products

19:-Unit Testing the eCommerce Applications-1

20:-Unit Testing the eCommerce Applications - 2

Agenda

• We will start implementing unit test in our ecommerce application

• We will also do some setup and configuration to implement integration test.

• We will then start writing integration test

21:- "Application Deployment"

List of Concepts Involved

• Intro of GitHub.

• Repository Creation.

• Get Database for production.

• Intro to Heroku.

• Understand the deployment process of our Ecommerce App.

Learn Data Structures and Algorithms