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

This course includes

3 Assessments

59 Playgrounds

17 Quizzes

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

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

What You'll Learn

Basic knowledge of NestJS concepts and RESTful API development

Course Content

Introduction

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

Course Overview

What Is NestJS?

NestJS Fundamentals

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

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

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

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.

Authentication and Authorization

8 Lessons

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

Persist Data, Authentication, Validation, and Serialization

Assessment

Testing

8 Lessons

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

Deployment

6 Lessons

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

Testing and Deployment

Assessment

10.

Conclusion

1 Lesson

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

11.

Appendix

4 Lessons

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

Course Author

Trusted by 1.4 million developers working at companies

Anthony Walker

@_webarchitect_

Evan Dunbar

ML Engineer

Carlos Matias La Borde

Software Developer

Souvik Kundu

Front-end Developer

Vinay Krishnaiah

Software Developer

Eric Downs

Musician/Entrepeneur

Kenan Eyvazov

DevOps Engineer

Souvik Kundu

Front-end Developer

Eric Downs

Musician/Entrepeneur

Anthony Walker

@_webarchitect_

Evan Dunbar

ML Engineer

Hands-on Learning Powered by AI

See how Educative uses AI to make your learning more immersive than ever before.

Instant Code Feedback

Evaluate and debug your code with the click of a button. Get real-time feedback on test cases, including time and space complexity of your solutions.

AI-Powered Mock Interviews

Put your skills to the test in a simulated interview setting. Receive personalized feedback based on your performance. Available in Premium & Premium Plus plans.

Adaptive Learning

At various checkpoints throughout Educative courses, you will be prompted to take a quick assessment. Receive a condensed curriculum tailored to your strengths and skill gaps.

Explain with AI

Select any text within any Educative course, and get an instant explanation — without ever leaving your browser.

AI Code Mentor

AI Code Mentor helps you quickly identify errors in your code, learn from your mistakes, and nudge you in the right direction — just like a 1:1 tutor!

FOR TEAMS

Interested in this course for your business or team?

Unlock this course (and 1,000+ more) for your entire org with DevPath