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  • The JavaScript JSON Cookbook
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The JavaScript JSON Cookbook

The JavaScript JSON Cookbook

By : Ray Rischpater, Brian Ritchie
1 (2)
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The JavaScript JSON Cookbook

The JavaScript JSON Cookbook

1 (2)
By: Ray Rischpater, Brian Ritchie

Overview of this book

If you're writing applications that move structured data from one place to another, this book is for you. This is especially true if you've been using XML to do the job because it's entirely possible that you could do much of the same work with less code and less data overhead in JSON. While the book's chapters make some distinction between the client and server sides of an application, it doesn't matter if you're a frontend, backend, or full-stack developer. The principles behind using JSON apply to both the client and the server, and in fact, developers who understand both sides of the equation generally craft the best applications.
Table of Contents (12 chapters)
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Preface
Preface
What this book covers
What you need for this book
Who this book is for
Sections
Conventions
Reader feedback
Customer support
Free Chapter
1
1. Reading and Writing JSON on the Client
1. Reading and Writing JSON on the Client
Introduction
Reading and writing JSON in JavaScript
Reading and writing JSON in C++
Reading and writing JSON in C#
Reading and writing JSON in Java
Reading and writing JSON in Perl
Reading and writing JSON in Python
2
2. Reading and Writing JSON on the Server
2. Reading and Writing JSON on the Server
Reading and writing JSON in Clojure
Reading and writing JSON in F#
Reading and writing JSON with Node.js
Reading and writing JSON in PHP
Reading and writing JSON in Ruby
3
3. Using JSON in Simple AJAX Applications
3. Using JSON in Simple AJAX Applications
Introduction
Creating an XMLHttpRequest object
Making an asynchronous request for data
Sending JSON to your web server
Accepting JSON using Node.js
Getting the progress of an asynchronous request
Parsing the returned JSON
Issuing a web service request using Node.js
4
4. Using JSON in AJAX Applications with jQuery and AngularJS
4. Using JSON in AJAX Applications with jQuery and AngularJS
Introduction
Adding a dependency to jQuery to your web page
Requesting JSON content using jQuery
Sending JSON to your web server using jQuery
Getting the progress of a request using jQuery
Parsing the returned JSON using jQuery
Adding a dependency to AngularJS to your web page
Requesting JSON content using AngularJS
Sending JSON to your web server using AngularJS
Getting the progress of a request using AngularJS
Parsing the returned JSON using AngularJS
5
5. Using JSON with MongoDB
5. Using JSON with MongoDB
Introduction
Setting up MongoDB
Installing the MongoDB database driver for Node.js
Installing the express module for Node.js
Connecting to a MongoDB database using Node.js
Creating a document in MongoDB using Node.js
Searching for a document in MongoDB with Node.js
Updating a document in MongoDB with Node.js
Deleting a document in MongoDB using Node.js
Using REST to search MongoDB
Using REST to create a document in MongoDB
Using REST to update a document in MongoDB
Using REST to delete a document in MongoDB
6
6. Using JSON with CouchDB
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6. Using JSON with CouchDB
Introduction
Installing and setting up CouchDB and Cradle
Connecting to a CouchDB database using Node.js and Cradle
Creating a CouchDB database using Node.js and Cradle
Creating a document in CouchDB using Node.js and Cradle
Setting up a data view in CouchDB with Node.js and Cradle
Searching for a document in CouchDB with Node.js and Cradle
Updating a document in CouchDB with Node.js and Cradle
Deleting a document in CouchDB using Node.js and Cradle
Using REST to enumerate CouchDB records
Using REST to search CouchDB
Using REST to upsert a document in CouchDB
Using REST to delete a document in CouchDB
7
7. Using JSON in a Type-safe Manner
7. Using JSON in a Type-safe Manner
Introduction
How to deserialize an object using Json.NET
How to handle date and time objects using Json.NET
How to deserialize an object using gson for Java
How to use TypeScript with Node.js
How to annotate simple types using TypeScript
How to declare interfaces using TypeScript
How to declare classes with interfaces using TypeScript
Using json2ts to generate TypeScript interfaces from your JSON
8
8. Using JSON for Binary Data Transfer
8. Using JSON for Binary Data Transfer
Introduction
Encoding binary data as a base64 string using Node.js
Decoding binary data from a base64 string using Node.js
Encoding and decoding binary data as a base64 string using JavaScript in the browser
Encoding data as BSON using Json.NET
Decoding data from BSON using Json.NET
Using a DataView to access an ArrayBuffer
Encoding and decoding base64 using an ArrayBuffer
Compressing object-body content from a Node.js server built using the express module
9
9. Querying JSON with JSONPath and LINQ
9. Querying JSON with JSONPath and LINQ
Introduction
Using the JSONPath dot-notation to query JSON documents
Using JSONPath bracket-notation to query JSON documents
Using JSONPath scripting to construct more complicated queries
Using JSONPath in your web application
Using JSONPath in your Node.js application
Using JSONPath in your PHP application
Using JSONPath in your Python application
Using JSONPath in your Java application
Using JSONPath with SelectToken to query for JSONPath expressions in your C# application
Using LINQ with Json.NET to query JSON in your C# application
10
10. JSON on Mobile Platforms
10. JSON on Mobile Platforms
Introduction
Parsing JSON on Android
Generating JSON on Android
Parsing JSON on iOS in Objective-C
Generating JSON on iOS in Objective-C
Parsing JSON on iOS using Swift
Generating JSON on iOS using Swift
Parsing JSON using Qt
Generating JSON using Qt
11
Index
Index

Connecting to a CouchDB database using Node.js and Cradle

Although CouchDB provides a RESTful interface, you don't strictly need to make a database connection before using CouchDB; the Cradle module uses the notion of a connection to manage its internal state and there's still a connection object you need to create.

How to do it...

Here's how to include the Cradle module in your Node.js application and initialize it, getting a handle to a particular database:

var cradle = require('cradle');
var db = new(cradle.Connection)().database('documents');

How it works…

This code first includes the Cradle module, and then creates a new Cradle Connection object, setting its database to the database documents. This initializes Cradle with the default CouchDB host (localhost) and port (5984). If you need to override the host or port, you can do so by passing the host and port as the first and second arguments to the Connection constructor, like this:

var connection...

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