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JavaScript and JSON Essentials

By : Joseph D'mello, Sai S Sriparasa

4.5 (2)

JavaScript and JSON Essentials

4.5 (2)

By: 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.

Preface

Preface

Who this book is for

What this book covers

To get the most out of this book

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Free Chapter

Getting Started with JSON

Getting Started with JSON

JSON, a data exchange format

The Hello World program with JSON

How is JSON stored in memory?

Datatypes in JSON

Languages that support JSON

Summary

The JSON Structures

The JSON Structures

Inserting external JavaScript

Accessing objects in JSON

Performing complex operations

Modifying JSON

Summary

AJAX Requests with JSON

AJAX Requests with JSON

Basic web operations

Requirements for AJAX

Hosting JSON

Making your first AJAX call

Parsing JSON data

Summary

Cross-Domain Asynchronous Requests

Cross-Domain Asynchronous Requests

The API story

Making GET and POST AJAX calls with JSON data

The problem with cross-domain AJAX calls

Introduction to JSONP

Summary

Debugging JSON

Debugging JSON

Using the developer tools

Validating JSON

Formatting JSON

Summary

Building the Carousel Application

Building the Carousel Application

Setting up the Carousel application

Building the JSON file for the Carousel application

Introducing Bootstrap

Summary

Alternate Implementations of JSON

Alternate Implementations of JSON

Dependency management

JSON for storing application configurations

JSON for storing application metadata

Comparisons with YAML

Summary

Introduction to hapi.js

Introduction to hapi.js

Basic server setup using JSON

Using JSON metadata and constants

Configuring API using JSON

Configuring a plugin in hapi

Testing the APIs using POSTMAN

Summary

Storing JSON Documents in MongoDB

Storing JSON Documents in MongoDB

Setting up MongoDB

Connecting the hapi app with MongoDB

JSON versus BSON

Inserting a JSON document

Retrieving a JSON document

JSON-based schemas in MongoDB

Summary

Configuring the Task Runner Using JSON

Configuring the Task Runner Using JSON

What is a task runner?

Introducing gulp.js

Creating tasks in gulp.js

Automation testing

Gulp JSON configuration

Summary

JSON for Real-Time and Distributed Data

JSON for Real-Time and Distributed Data

Using JSON with Socket.IO

Using JSON with Apache Kafka

Summary

Case Studies in JSON

Case Studies in JSON

GeoJSON – a geospatial JSON data format

JSONLD – a JSON format for SEO

BSON – a fast-traversal JSON format

Better compressions with messagePack

Summary

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Storing JSON Documents in MongoDB

NoSQL databases are emerging as the next big thing. From the field of geospatial data to small businesses, the implementation of NoSQL databases has increased exponentially. This is due to the flexibility they provide while managing data, which we are going to study in detail in this chapter.

A NoSQL database is something that doesn't adhere to relational databases, that is, databases that are not structured, unlike tabular format. Such NoSQL databases can accommodate a variety of data models, such as graphs, single-level or multilevel key-value pairs, or simply JSON documents, and so on. MongoDB is a type of NoSQL database that uses BSON document storage. Let's dive into this topic by learning about the following points:

Setting up MongoDB and integrating with the hapi app
JSON versus BSON
Inserting a JSON document
Retrieving a JSON...

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