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Full-Stack Web Development with TypeScript 5
Full-Stack Web Development with TypeScript 5

Full-Stack Web Development with TypeScript 5: Craft modern full-stack projects with Bun, PostgreSQL, Svelte, TypeScript, and OpenAI

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Profile Icon Mykyta Chernenko
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Paperback Aug 2024 272 pages 1st Edition
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Arrow left icon
Profile Icon Mykyta Chernenko
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€27.99
Paperback Aug 2024 272 pages 1st Edition
eBook
€15.99 €22.99
Paperback
€27.99
Subscription
Free Trial
Renews at €18.99p/m
eBook
€15.99 €22.99
Paperback
€27.99
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Free Trial
Renews at €18.99p/m

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Full-Stack Web Development with TypeScript 5

TypeScript Fundamentals

Web development is constantly evolving, yet one constant remains: JavaScript as the primary language, a status it’s likely to hold for the foreseeable future. Alongside JavaScript, an array of tools has surfaced, each contributing to the more efficient creation of full-stack applications. This book is dedicated to exploring these developments.

We’ll focus on full-stack development, combining TypeScript with a variety of cutting-edge technologies needed to build complete applications through building a hands-on project. Our practical project involves constructing a chat application, similar in essence to the functionality of ChatGPT. It will involve the application of diverse frontend and backend technologies, along with database and API integrations.

This book is more than just a guide to coding an application from start to finish. It also aims to teach you about effective development patterns, which are versatile enough to be applied across...

Technical requirements

In this chapter, there’s no need to install or run anything just yet. We’re going to focus on the basics of TypeScript, so you can ease into it without any setup work.

All the code examples we discuss are available in this repository: https://github.com/PacktPublishing/Full-Stack-Web-Development-with-TypeScript-5/tree/main/Chapter01.

Introduction to TypeScript and its evolution

JavaScript’s journey to market was remarkably quick. Brendan Eich created its first version in just 10 days, aiming to make web pages interactive through a straightforward scripting language. Over time, JavaScript gradually, then rapidly, became a dominant force in web development, while applications grew increasingly complex.

Many developers critique JavaScript’s design as lacking elegance, often pointing out its seemingly inconsistent language decisions. It’s true that JavaScript is notorious for its quirks. To illustrate this, let’s look at two common examples:

  • 4 / []
  • 0 == ""

The first one evaluates to Infinity, while the second one becomes True. This happens because of the type coercion that happens when this code is executed. Type coercion is the process of automatically converting data types from one to another. For example, when [] is used in the numeric context, it is coerced...

Key differences between TypeScript and JavaScript

TypeScript is a superset of JavaScript, meaning everything you can do in JavaScript, you can also do in TypeScript. It works in all the same places as JavaScript – browsers, Node.js, Bun, and so on. Before the code execution, TypeScript is first transpiled into JavaScript. So, what actually runs is plain JavaScript. TypeScript exists only during development.

This means all your JavaScript knowledge is still valuable in TypeScript. But TypeScript adds a bunch of cool stuff:

  • Type annotations: TypeScript allows type annotations, where you can explicitly declare variable types. JavaScript does not support this natively.
  • Interfaces: TypeScript introduces interfaces, a way to define custom types and ensure objects conform to specific structures. JavaScript lacks this feature.
  • Access Modifiers: TypeScript supports access modifiers such as private, protected, and public, for controlling access to class members. JavaScript...

The advantages of using TypeScript in modern web development

Using TypeScript comes with a few advantages, mostly of which come directly from using types:

  • Type safety: TypeScript’s static typing helps catch errors at compile time, long before the code is executed. This leads to fewer runtime errors and more robust, reliable code.
  • Improved tooling: The static type system allows for better tooling support like auto-completion, navigation, and refactoring tools, making the development process more efficient.
  • Easier maintenance: For large code bases, TypeScript’s type system makes the code easier to understand and maintain. Changes can be made with greater confidence, reducing the likelihood of introducing bugs.
  • Better documentation: The type annotations serve as a form of documentation, making it easier for new developers to understand what the code is doing.

At the same time, as with every technology, TypeScript is not all that shiny; there are...

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Key benefits

  • Integrate AI capabilities in an application using the OpenAI API and learn AI-based features
  • Build robust web applications with advanced TypeScript features like typing, generics, classes, and interfaces
  • Implement user authentication and authorization mechanisms to protect your apps and user data
  • Purchase of the print or Kindle book includes a free PDF eBook

Description

This book takes you on a journey with TypeScript 5, introducing its nuances and advantages over traditional JavaScript, explaining TypeScript basics, and highlighting the syntax, typing, generics, classes, and interfaces. Expert advice will help you build your understanding of TypeScript's role in modern web applications. You'll gain hands-on experience with the tools required to write full-stack web applications end to end, beginning with setting up the Bun environment for backend development. This book also explores server-side functionality such as authentication, routing, and database integration with PostgreSQL. The second part of the book focuses on the integration of the OpenAI API, demonstrating the use of the GPT API for different use cases. The final part covers frontend development using Svelte, guiding you through UI design, state management, and performance optimization. Each chapter has real-world examples and comparisons to other technologies, providing you with a comprehensive understanding of full-stack development. By the end of this book, you'll have learned how to build modern web applications using TypeScript 5 and confidently tackle full-stack development challenges.

Who is this book for?

This book is for junior to mid-level software engineers with foundational knowledge of JavaScript and web development, who are enthusiastic about the most cutting-edge technologies and want to expand their understanding of building full-stack applications end to end. Familiarity with the fundamentals of frontend and backend development will help you get the most out of this book.

What you will learn

  • Develop a chat application by implementing frontend and backend features effectively
  • Build powerful backends using PostgreSQL
  • Write unit tests efficiently for cleaner and more reliable apps
  • Understand full-stack application architecture for better scalability and maintainability
  • Create dynamic and responsive UIs with Svelte
  • Use debugging, testing, and logging tools in web applications to quickly detect and minimize errors
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Table of Contents

22 Chapters
Part 1: Introduction to TypeScript Chevron down icon Chevron up icon
Chapter 1: TypeScript Fundamentals Chevron down icon Chevron up icon
Chapter 2: TypeScript Deep Dive – Typing, Generics, Classes, and Interfaces Chevron down icon Chevron up icon
Part 2: Backend Development with Bun and TypeScript Chevron down icon Chevron up icon
Chapter 3: Configuring a Backend Environment with Bun and Hono Chevron down icon Chevron up icon
Chapter 4: Building Backend Infrastructure with Bun, Hono, and TypeScript Chevron down icon Chevron up icon
Chapter 5: Improving Reliability – Testing and Validation Chevron down icon Chevron up icon
Chapter 6: Advanced Backend Development – Security, Throttling, Caching, and Logging Chevron down icon Chevron up icon
Part 3: Integrating PostgreSQL for Data Management Chevron down icon Chevron up icon
Chapter 7: PostgreSQL Basics, Storage, and Setup Chevron down icon Chevron up icon
Chapter 8: Interacting with PostgreSQL Using Libraries Chevron down icon Chevron up icon
Chapter 9: Interacting with PostgreSQL Using Prisma ORM Chevron down icon Chevron up icon
Part 4: AI Integration with OpenAI API Chevron down icon Chevron up icon
Chapter 10: Basics of Integrating External APIs with TypeScript and Hono Chevron down icon Chevron up icon
Chapter 11: Setting Up and Configuring the OpenAI API for the Backend Chevron down icon Chevron up icon
Part 5: Frontend Development with Svelte Chevron down icon Chevron up icon
Chapter 12: Introduction to Svelte for Frontend Development Chevron down icon Chevron up icon
Chapter 13: Setting Up the Svelte Project Chevron down icon Chevron up icon
Chapter 14: Svelte Chat Application Development Chevron down icon Chevron up icon
Chapter 15: Advanced Svelte Techniques Chevron down icon Chevron up icon
Index Chevron down icon Chevron up icon
Other Books You May Enjoy Chevron down icon Chevron up icon
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