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  • Book Overview & Buying Getting Started with hapi.js
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Getting Started with hapi.js

Getting Started with hapi.js

By : Brett
3.2 (6)
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Getting Started with hapi.js

Getting Started with hapi.js

3.2 (6)
By: Brett

Overview of this book

This book will introduce hapi.js and walk you through the creation of your first working application using the out-of-the-box features hapi.js provides. Packed with real-world problems and examples, this book introduces some of the basic concepts of hapi.js and Node.js and takes you through the typical journey you'll face when developing an application. Starting with easier concepts such as routing requests, building APIs serving JSON, using templates to build websites and applications, and connecting databases, we then move on to more complex problems such as authentication, model validation, caching, and techniques for structuring your codebase to scale gracefully. You will also develop skills to ensure your application's reliability through testing, code coverage, and logging. By the end of this book, you'll be equipped with all the skills you need to build your first fully featured application. This book will be invaluable if you are investigating Node.js frameworks or planning on using hapi.js in your next project.
Table of Contents (9 chapters)
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5
5. Securing Applications with Authentication and Authorization
8
Index

The reply interface

In the various life cycle events in hapi, such as authentication, route handlers, route prerequisites, you will see reply as one of the function arguments. This is the reply interface.

Throughout this book and the API documentation, you will see the function reply in two forms—either as reply() or as reply.continue()—which have two different purposes. reply.continue() is generally used to return the control flow back to the framework and continue through the request life cycle, whereas reply() is generally used to generate the response to be returned to the client. The only exception to this is inside the route prerequisites where reply() is used, as it assigns a variable to the request.pre object.

reply() can accept two parameters (error and response), but this is rarely used, as reply always acts on the first defined parameter that it is passed in. For example, if reply() is passed two variables and the first one is not null, it treats this as an error...

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