Book Image

Hands-On RESTful Web Services with TypeScript 3

By : Biharck Muniz Araújo
5 (1)
Book Image

Hands-On RESTful Web Services with TypeScript 3

5 (1)
By: Biharck Muniz Araújo

Overview of this book

In the world of web development, leveraging data is the key to developing comprehensive applications, and RESTful APIs help you to achieve this systematically. This book will guide you in designing and developing web services with the power of TypeScript 3 and Node.js. You'll design REST APIs using best practices for request handling, validation, authentication, and authorization. You'll also understand how to enhance the capabilities of your APIs with ODMs, databases, models and views, as well as asynchronous callbacks. This book will guide you in securing your environment by testing your services and initiating test automation with different testing approaches. Furthermore, you'll get to grips with developing secure, testable, and more efficient code, and be able to scale and deploy TypeScript 3 and Node.js-powered RESTful APIs on cloud platforms such as the Google Cloud Platform. Finally, the book will help you explore microservices and give you an overview of what GraphQL can allow you to do. By the end of this book, you will be able to use RESTful web services to create your APIs for mobile and web apps and other platforms.
Table of Contents (20 chapters)
Free Chapter
Section 1: Unraveling API Design
Section 2: Developing RESTful Web Services
Section 3: Enhancing RESTful Web Services
Section 4: Extending the Capabilities of RESTful Web Services

Error Handling and Logging

Debugging can become a burden if you do not have meaningful error messages or if you do not handle errors in the correct way. In this chapter, we are going to focus on how to handle errors, starting with how to catch them and how to describe what an error is and is not. Without meaningful error messages, catching an error is usually hard to debug. Note that error messages should only describe the error and should not expose any sensitive data inside the error. We are going to talk about how to write understandable error messages with minimal information. At the end of the chapter, we will explore logging mechanisms in order to track what is going on in our web services, use them for attack detection, and to improve our code base in terms of quality and validity.

The following topics will be covered in this chapter:

  • Error handling
  • Error messages
  • Logging...