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Mastering Node.js

Mastering Node.js

By : Sandro Pasquali
4.4 (10)
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Mastering Node.js

Mastering Node.js

4.4 (10)
By: Sandro Pasquali

Overview of this book

Node.js is a modern development stack focused on providing an easy way to build scalable network software. Backed by a growing number of large companies and a rapidly increasing developer base, Node is revolutionizing the way that software is being built today. Powered by Google's V8 engine and built out of C++ modules, this is a JavaScript environment for the enterprise.Mastering Node.js will take the reader deep into this exciting development environment. Beginning with a comprehensive breakdown of its innovative non-blocking evented design, Node's structure is explained in detail, laying out how its blazingly fast I/O performance simplifies the creation of fast servers, scalable architectures, and responsive web applications.Mastering Node.js takes you through a concise yet thorough tour of Node's innovative evented non-blocking design, showing you how to build professional applications with the help of detailed examples.Learn how to integrate your applications with Facebook and Twitter, Amazon and Google, creating social apps and programs reaching thousands of collaborators on the cloud. See how the Express and Path frameworks make the creation of professional web applications painless. Set up one, two, or an entire server cluster with just a few lines of code, ready to scale as soon as you're ready to launch. Move data seamlessly between databases and file systems, between clients, and across network protocols, using a beautifully designed, consistent, and predictable set of tools.Mastering Node.js contains all of the examples and explanations you'll need to build applications in a short amount of time and at a low cost, running on a scale and speed that would have been nearly impossible just a few years ago.
Table of Contents (14 chapters)
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13
Index

Sending and receiving

In addition to keeping state on the server, Path also aims at reducing the responsibility of a caller for holding on to a call context until a response is received. This sort of call frame maintenance anticipating callback execution is an essential condition of nearly all AJAX development patterns, and is typically represented as follows:

//Within some execution context, such as an autocomplete input
someXhrProxy.get("/a/path/", function(data) {
  //A callback bound to the execution context via closures
});

Some client-side libraries attempt to simplify this pattern with abstractions like Promises, but they miss the point: a call should "fire and forget", its job being solely the transmission of a request. The impact of that action, for both the server and the client, is not the caller's concern. A developer only needs to assert a desired change of state, or request some information. Path facilitates this separation of concerns, absolves the...

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