HomeCoursesBuilding Secure RESTful APIs with NestJS: A Practical Guide

4.5

Intermediate

30h

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.

Join 2.7 million developers at

Overview

Content

Reviews

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, and more. By the end of this course, you will have gained the essential skills, knowledge, and hands-on experience necessary to build a real-world RESTful API. You will have learned how to scale your application using a public cloud, such as AWS, where your application can serve thousands and millions of customers cost-effectively. This comprehensive learning journey equips you to confidently navigate the intricacies of RESTful API development, ensuring you are well-prepared for NestJS development.

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

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

TAKEAWAY SKILLS

REST API

API Development

Jest

Using AWS Cloud Services

Unit Testing

DB migration

Content

71 Lessons17 Quizzes3 Assessments2 Challenges

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

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

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

10.

Conclusion

1 Lessons

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

Key Takeaways and Next Steps

11.

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

Certificate of Completion

Showcase your accomplishment by sharing your certificate of completion.

Course Author:

Sun Sunny

Developed by MAANG Engineers

Every Educative resource is designed by our team of ex-MAANG software engineers and PhD computer science educators — subject matter experts who’ve shipped production code at scale and taught the theory behind it. The goal is to get you hands-on with the skills you need to stay ahead in today's constantly evolving tech landscape. No videos, no fluff — just interactive, project-based learning with personalized feedback that adapts to your goals and experience.

Trusted by 2.7 million developers working at companies

"These are high-quality courses. Trust me. I own around 10 and the price is worth it for the content quality. EducativeInc came at the right time in my career. I'm understanding topics better than with any book or online video tutorial I've done. Truly made for developers. Thanks"

Anthony Walker

@_webarchitect_

"Just finished my first full #ML course: Machine learning for Software Engineers from Educative, Inc. ... Highly recommend!"

Evan Dunbar

ML Engineer

"You guys are the gold standard of crash-courses... Narrow enough that it doesn't need years of study or a full blown book to get the gist, but broad enough that an afternoon of Googling doesn't cut it."

Software Developer

Carlos Matias La Borde

"I spend my days and nights on Educative. It is indispensable. It is such a unique and reader-friendly site"

Souvik Kundu

Front-end Developer

"Your courses are simply awesome, the depth they go into and the breadth of coverage is so good that I don't have to refer to 10 different websites looking for interview topics and content."

Vinay Krishnaiah

Software Developer

Hands-on Learning Powered by AI

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

Personalized Interview Prep

Skip the LeetCode grind with a custom roadmap that adapts to your goals. Hands-on practice for Coding Interviews, System Design, and more.

Mock Interviews

Test your skills in a simulated interview setting. Receive personalized feedback based on your performance. Available for Coding Interviews, System Design, and more.

AI Prompt

Build prompt engineering skills. Practice implementing AI-informed solutions.

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.

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!

Course

Grokking the Product Architecture Interview

This essential guide to the Product Architecture Interview is developed by FAANG engineers. Master product architecture fundamentals and get hands-on with real-world products.

20 h

intermediate

Course

API Analytics for Product Managers

Gain insights into managing APIs as products, building customer empathy, designing success metrics, and identifying KPIs to inform product strategy for optimizing API performance and profitability.

15 h

beginner

Course

Securing REST API for Web Applications and Services

Secure your win in the REST API interview. The gist of years of experience on how to effectively secure your REST APIs and prevent attacks is in this course.

1 h

intermediate

Course

Mastering TypeScript

Gain insights into TypeScript types, interfaces, classes, generics, and asynchronous programming. Explore Angular, React, Vue for web development, and learn to build web servers using Express and AWS.

48 h

intermediate

Course

Design and Build Great Web APIs

Gain insights into designing robust APIs, explore essential tools for design, documentation, testing, and deployment. Delve into ALPS, OpenAPI, Postman, and Heroku for comprehensive API development.

28 h

intermediate

Course

Learn the A to Z of Amazon Web Services (AWS)

This course provides the best Amazon Web Services (AWS) tutorial for beginners to learn about AWS cloud services.

3 h

beginner

Course

Grokking the Product Architecture Interview

intermediate

20 hour

Course