Book Image

JavaScript and JSON Essentials - Second Edition

By : Bruno Joseph D'mello, Sai S Sriparasa
Book Image

JavaScript and JSON Essentials - Second Edition

By: Bruno Joseph D'mello, Sai S Sriparasa

Overview of this book

JSON is an established and standard format used to exchange data. This book shows how JSON plays different roles in full web development through examples. By the end of this book, you'll have a new perspective on providing solutions for your applications and handling their complexities. After establishing a strong basic foundation with JSON, you'll learn to build frontend apps by creating a carousel. Next, you'll learn to implement JSON with Angular 5, Node.js, template embedding, and composer.json in PHP. This book will also help you implement Hapi.js (known for its JSON-configurable architecture) for server-side scripting. You'll learn to implement JSON for real-time apps using Kafka, as well as how to implement JSON for a task runner, and for MongoDB BSON storage. The book ends with some case studies on JSON formats to help you sharpen your creativity by exploring futuristic JSON implementations. By the end of the book, you'll be up and running with all the essential features of JSON and JavaScript and able to build fast, scalable, and efficient web applications.
Table of Contents (20 chapters)
Title Page
Copyright and Credits
Dedication
Packt Upsell
Contributors
Preface
Index

JSONLD – a JSON format for SEO


JSONLD stands for JSON with linked data structure. First of all, let's understand what a linked data structure is. Say we are writing a new blog on block chains. While doing so, we would need to provide some metadata to our web crawler, assuming they are Google crawlers. The crawlers can parse our html and read the content of our blog. Now, this type of crawling is done by machine-reading methods rather than manually. Such input metadata may consist of some information that is linked with the next or previous blog post, or may be linked to the person who posted the blog. JSONLD provides a way to accomplish both. It works as a metadata for crawler as well as giving an idea about the links to other sets of data.

The Google search engine uses the crawled data to provide the best search results when someone searches for block chains.

JSONLD is used to connect data on the web. Let's understand the structure of JSONLD and its working with respect to linked data.

In...