API Development in TypeScript. From Design to Deployment

The book "API Development with TypeScript" is a practical guide for developers who want to learn how to build modern, scalable, and secure web APIs using TypeScript. The author systematically takes the reader from the basics of architecture design to deploying a finished product to production.

What this book is about

The book covers the complete API development cycle with TypeScript. You will learn how to properly organize a project structure, configure typing, work with databases, implement authentication and authorization, as well as test and document your API.

What you will learn

• Designing RESTful and GraphQL APIs with TypeScript in mind
• Working with Express.js and Fastify in conjunction with TypeScript
• Setting up ORM (TypeORM, Prisma) and interacting with databases
• Implementing JWT authentication and role-based authorization
• Validating incoming data using Zod and class-validator
• Writing unit and integration tests for APIs
• Documenting APIs via Swagger/OpenAPI
• Containerization with Docker and deployment to cloud platforms
• Performance optimization and error handling

Who this book is for

The book will be useful for:

• Frontend developers who want to master backend development with TypeScript
• Node.js developers transitioning from JavaScript to TypeScript
• Fullstack developers looking to systematize their knowledge of API creation
• Beginner developers familiar with the basics of JavaScript and TypeScript

Why you should read it

TypeScript is becoming the standard for modern web development, and the ability to create reliable APIs is a key developer skill. The book offers not just theory, but real code examples ready for use in projects. You will learn to avoid common mistakes and create APIs that are easy to maintain and scale.

Each chapter comes with practical assignments and links to a repository with the complete example code. After reading the book, you will be able to independently develop and deploy full-fledged web services in TypeScript.