Book Image

Mastering TypeScript 3 - Third Edition

By : Nathan Rozentals
Book Image

Mastering TypeScript 3 - Third Edition

By: Nathan Rozentals

Overview of this book

TypeScript is both a language and a set of tools to generate JavaScript. It was designed by Anders Hejlsberg at Microsoft to help developers write enterprise-scale JavaScript. Starting with an introduction to the TypeScript language, before moving on to basic concepts, each section builds on previous knowledge in an incremental and easy-to-understand way. Advanced and powerful language features are all covered, including asynchronous programming techniques, decorators, and generics. This book explores many modern JavaScript and TypeScript frameworks side by side in order for the reader to learn their respective strengths and weaknesses. It will also thoroughly explore unit and integration testing for each framework. Best-of-breed applications utilize well-known design patterns in order to be scalable, maintainable, and testable. This book explores some of these object-oriented techniques and patterns, and shows real-world implementations. By the end of the book, you will have built a comprehensive, end-to-end web application to show how TypeScript language features, design patterns, and industry best practices can be brought together in a real-world scenario.
Table of Contents (16 chapters)
Free Chapter
TypeScript Tools and Framework Options

External authentication

As we mentioned at the start of the chapter, most modern websites allow registration through external authentication services, such as Facebook, Google, or LinkedIn. What this means is that these external authentication services validate a user's credentials, and then forward our application some details about the user. These details generally include the username, email address, and possibly even a link to a picture that we can use on our site. This is a fairly easy replacement for the standard registration process, where we gather and store information about a user and their password. The use of external authentication services also makes our sites more appealing and accessible to a broader range of users.

In this section of the chapter, we will integrate with Google to allow anyone who has a valid Google account to access our site. The libraries...