Mars Collapse

an independent study project with professor, allow me to study cutting-edge technologies outside of classroom

real-time browser game, similar to the famous game, Civilization

Node.js

Node.js is a platform built on Chrome's JavaScript runtime for easily building fast and scalable network applications. Node.js uses an event-driven, non-blocking I/O model that makes it lightweight and efficient, perfect for data-intensive real-time applications that run across distributed devices.

a server-side platform

Following are some of the important features that make Node.js the first choice of software architects.

  • Asynchronous and Event Driven− All APIs of Node.js library are asynchronous, that is, non-blocking. It essentially means a Node.js based server never waits for an API to return data. The server moves to the next API after calling it and a notification mechanism of Events of Node.js helps the server to get a response from the previous API call.

  • Very Fast− Being built on Google Chrome's V8 JavaScript Engine, Node.js library is very fast in code execution.

  • Single Threaded but Highly Scalable− Node.js uses a single threaded model with event looping. Event mechanism helps the server to respond in a non-blocking way and makes the server highly scalable as opposed to traditional servers which create limited threads to handle requests. Node.js uses a single threaded program and the same program can provide service to a much larger number of requests than traditional servers like Apache HTTP Server.

  • No Buffering− Node.js applications never buffer any data. These applications simply output the data in chunks.

Where to Use Node.js?

  • I/O bound Applications

  • Data Streaming Applications

  • Data Intensive Real-time Applications (DIRT)

  • JSON APIs based Applications

  • Single Page Applications

Socket.IO

Sockets have traditionally been the solution around which most realtime chat systems are architected, providing a bi-directional communication channel between a client and a server. The server can _push _messages to clients. Whenever you write a chat message, the idea is that the server will get it and push it to all other connected clients.

Socket.IO is a JavaScript library for real-time web applications. It enables real-time, bi-directional communication between web clients and servers. It has two parts: a client-side library that runs in the browser, and a server-side library for node.js. Both components have an identical API.

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