Modern TypeScript Back-end Development with NestJS

Modern TypeScript Back-end Development with NestJS

Ariel Weinberger

Last Updated on September 2, 2023 by GeeksGod

Course : NestJS Zero to Hero – Modern TypeScript Back-end Development

Free Udemy Coupon

NestJS is a Node.js back-end development framework built upon Express, leveraging the power of TypeScript.

NestJS leverages the incredible popularity and robustness of JavaScript as a language and Node.js as a technology. It is inspired by common libraries and frameworks such as Angular, React and Vue which improve developer productivity and experience.

Even considering the amount of superb libraries, helpers and tools that exist for server-side Node.js, none of them effectively solve the main problem – the architecture of an application.

NestJS provides an out-of-the-box application architecture which allows developers and teams to create highly testable, scalable, loosely coupled and easily maintainable applications. With Free Udemy Coupon, you can learn NestJS and enhance your TypeScript back-end development skills.

Recently, the NestJS framework is gaining extreme popularity due to its incredible features;

Leverages TypeScript – strongly typed language which is a super-set of JavaScriptSimple to use, easy to learn and easy to masterPowerful Command Line Interface (CLI) tool that boosts productivity and ease of developmentDetailed, well-maintained documentationActive codebase development and maintenanceOpen-source (MIT license)Supports dozens nest-specific modules that help you easily integrate with common technologies and concepts such as TypeORM, Mongoose, GraphQL, Logging, Validation, Caching, Websockets and much moreEasy of unit-testing applicationsMade for Monoliths and Micro-services (entire section in the documentation regarding the Microservice type of a NestJS application, as well as techniques and recipes).

In this course, you will learn all about NestJS, a powerful Node.js back-end development framework, with Free Udemy Coupon. The course will guide you through the process of planning, developing, and deploying a fully-featured back-end application. Based on the experience of developing and maintaining systems that support dozens of millions of concurrent users at scale, this course will give you hands-on experience in TypeScript back-end development.

Benefits of Learning NestJS for TypeScript Back-end Development

1. TypeScript – NestJS leverages TypeScript, a strongly typed language which is a super-set of JavaScript. This ensures type safety and improves the overall reliability of the codebase.

2. Easy to Use – NestJS is simple to use, easy to learn, and easy to master. It provides a smooth learning curve for developers who are familiar with JavaScript and Node.js.

3. Powerful CLI Tool – NestJS comes with a powerful Command Line Interface (CLI) tool that boosts productivity and ease of development. The CLI provides essential features like code generation, scaffolding, and more.

4. Detailed Documentation – NestJS offers well-maintained and detailed documentation, making it easy for developers to learn and understand the framework. The documentation covers various aspects of the framework and provides examples to help developers get started quickly.

5. Active Development and Maintenance – NestJS has an active codebase development and maintenance community. This ensures that the framework stays up-to-date with the latest technologies and best practices.

6. Open-source – NestJS is an open-source framework released under the MIT license. This allows developers to freely use, modify, and distribute the framework.

7. Integration with Common Technologies and Concepts – NestJS supports dozens of nest-specific modules that help you easily integrate with common technologies and concepts such as TypeORM, Mongoose, GraphQL, Logging, Validation, Caching, Websockets, and much more.

8. Easy Unit Testing – NestJS provides an easy way to unit test applications, ensuring the reliability and correctness of the codebase.

9. Suitable for Monoliths and Micro-services – NestJS is designed to be used for both monolith and micro-services applications. The documentation provides guidance and techniques for building scalable and maintainable applications of different sizes and architectures.

Course Outline

The course on TypeScript back-end development and NestJS covers the following topics:

– Introduction to NestJS and its features
– Setting up the development environment
– Understanding the architecture of a NestJS application
– Creating modules, controllers, and services
– Handling HTTP requests and responses
– Data persistence with TypeORM
– Authentication and authorization
– Real-time communication with Websockets
– Building GraphQL APIs with NestJS
– Unit testing and integration testing
– Deploying the NestJS application

Who Should Take This Course

This course is ideal for:

– JavaScript developers who want to learn TypeScript and enhance their back-end development skills
– Node.js developers who want to explore a modern and opinionated framework for server-side development
– Web developers who want to switch from other frameworks to NestJS
– Developers who want to build scalable and maintainable back-end applications


If you are looking to improve your TypeScript back-end development skills, then learning NestJS is a great option. With its powerful features, ease of use, and extensive documentation, NestJS provides a solid foundation for building highly testable, scalable, and maintainable applications. Take advantage of Free Udemy Coupon and enroll in the TypeScript Back-end Development course to learn NestJS and take your back-end development skills to the next level.

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What you will learn :

1. Becoming familiar with the NestJS framework and its components
2. Designing and developing REST APIs performing CRUD operations
3. Authentication and Authorization for back-end applications
4. Using TypeORM for database interaction
5. Security best practices, password hashing and storing sensitive information
6. Persisting data using a database
7. Deploying back-end applications at a production-ready state to Amazon Web Services
8. Writing clean, maintainable code in-line with industry standards
9. Utilising the NestJS Command Line Interface (CLI)
10. Using Postman for testing back-end services
11. Using pgAdmin as an interface tool to manage PostgreSQL databases
12. Implement efficient logging in a back-end application
13. Environment-based configuration management and environment variables
14. Implementing data validation and using Pipes
15. Guarding endpoints for authorized users using Guards
16. Modelling entities for the persistence layer
17. TypeScript best practices
18. Handling asynchronous operations using async-await
19. Using Data Transfer Objects (DTO)
20. Hands-on experience with JSON Web Tokens (JWT)
21. Unit testing NestJS applications
22. Using GraphQL with NestJS
23. Database persistence with MongoDB

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