Home>Courses>Building Secure RESTful APIs with NestJS: A Practical Guide

Building Secure RESTful APIs with NestJS: A Practical Guide

Discover how to build secure RESTful APIs using NestJS, TypeScript, and various technologies. Delve into authentication, data modeling, error handling, testing, and deployment for scalable, real-world applications.

Intermediate

71 Lessons

30h

Certificate of Completion

AI-POWERED

Explanations

AI-POWERED

Explanations

This course includes

3 Assessments

59 Playgrounds

17 Quizzes

Course Overview

What You'll Learn

Course Content

Recommendations

Course Overview

NestJS is built on top of the popular Express.js library and provides a modular and structured approach to building server-side applications. You will take a hands-on approach to constructing a practical RESTful API from the ground up. By leveraging NestJS, TypeScript, and other technologies, you will delve into various topics, such as data modeling with TypeORM and MySQL, authentication and authorization mechanisms, request validation, error handling strategies, testing methodologies, deployment practices...Show More

NestJS is built on top of the popular Express.js library and provides a modular and structured approach to building server-side ...Show More

TAKEAWAY SKILLS

REST API

API Development

Jest

Using AWS Cloud Services

Unit Testing

DB migration

What You'll Learn

Basic knowledge of NestJS concepts and RESTful API development

Application of your knowledge while building a practical example

An understanding of end-to-end software development for an API, from API description to testing and deployment

The ability to explore data persistence using TypeORM and MySQL, master the CRUD operations, and handle the data relationships

The ability to scale applications on AWS Cloud

Basic knowledge of NestJS concepts and RESTful API development

Course Content

Introduction

2 Lessons

Get familiar with developing secure, scalable RESTful APIs using NestJS fundamentals and best practices.

Course Overview

What Is NestJS?

NestJS Fundamentals

7 Lessons

Walk through NestJS architecture, REST principles, request handling, controllers, dependency injection, and platform choices.

NestJS Project Structure

RESTful API: Principles and Benefits

Request, Response, and Status Codes

Controllers and Routes

Modules and Dependency Injection

NestJS Platforms: Express vs. Fastify

Quiz: NestJS Fundamentals

Connecting with REST: Building the Address Book App with NestJS

11 Lessons

Go hands-on with creating a secure RESTful API using NestJS and TypeORM for real-world applications.

Address Book API Overview

Create a New App Using NestJS CLI

Module Creation

Create a Controller and Service

Create a DTO and Introduce Entities

Create the GET Endpoint

Set Up Hot-Module Replacement

Create the POST, PUT, and DELETE Endpoints

Asynchronous Programming in NestJS

Integrate Swagger into the App

Quiz: Building a NestJS API

Understand the Basics of NestJS and RESTful APIs

Assessment

Validation, Exception Handling, and Logging

8 Lessons

Enhance your skills in validation, exception handling, and logging to build robust NestJS APIs.

Validation Overview

Validate Request with a Pipe

Validate Request Payload with a Custom Pipe

Exception Filter

Custom Exception

Default NestJS Logger and Custom Logger

Log Requests and Responses in Middleware

Quiz: Validation, Exception Handling, and Logging

Persist Data with TypeORM and MySQL

11 Lessons

Take a closer look at integrating TypeORM with NestJS, configuring databases, and managing CRUD operations.

ORM and NestJS

TypeORM

Configure TypeORM and Database Connection

Implement Create Operation

Implement the Read, Update, and Delete Operations

Code-First vs. Database-First

TypeORM QueryBuilder

Handle One-to-One and One-to-Many Relationships

Handling Many-to-Many Relationships

Migration with TypeORM

Quiz: NestJS TypeORM

Serialization and Interceptors

5 Lessons

Simplify complex topics like serialization, interceptors, role-based data control, caching, and custom logic.

Serialization

Group-Based Serialization

Implement Caching Using Interceptors

Implement a Custom Interceptor

Quiz: Serialization and Interceptors

Authentication and Authorization

8 Lessons

Build on authentication, JWT implementation, guards, Passport strategies, and role-based access control.

NestJS Authentication Overview

Creating an Authentication Module with User Sign-Up

Implement a Login Endpoint with a JWT

Managing Program Flow Using Guards

Implement Passport Authentication with Local Strategy

Implement Passport Authentication with the JWT Strategy

Implement Role-Based Access Control

Quiz: Authentication and Authorization

Persist Data, Authentication, Validation, and Serialization

Assessment

10.

Testing

8 Lessons

Step through unit testing, Jest integration, mocks, test coverage, and E2E testing for NestJS.

Unit Test Overview

Jest and NestJS

Create a Unit Test in NestJS with Mocks

Create Unit Tests for the Controller and Interceptor

Generate Test Coverage Report

E2E Tests Overview

Create an E2E Test

Quiz: Unit Tests and E2E Tests

11.

Deployment

6 Lessons

Walk through deploying NestJS apps efficiently using Docker, AWS RDS, ECR, ECS, and ALB.

NestJS Application Deployment Overview

Use the AWS CLI to Configure a MySQL Database in Amazon RDS

Dockerizing the NestJS App

ECR and ECS Configuration

Deploy NestJS App to Amazon ECS

Quiz: Deployment

Testing and Deployment

Assessment

13.

Conclusion

1 Lessons

Examine key concepts and next steps for mastering secure RESTful APIs with NestJS.

Key Takeaways and Next Steps

14.

Appendix

4 Lessons

Enhance your skills in setting up and debugging NestJS development environments and deploying with AWS.

Set Up a Local Development Environment

Debugging

Set Up MySQL with Docker

Set Up a Free AWS Account

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