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Node.js Packages

Node.js Packages. March 13, 2012 Shamoon Siddiqui @ shamoons. What are packages?. Ruby has Gems Python has Py PI PHP has PEAR (terrible) Node.js has Packages. Node Package Manager (NPM). Get NPM at http://npmjs.org / Almost 8,000 packages! Seriously... one line install.

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Node.js Packages

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  1. Node.js Packages March 13, 2012 Shamoon Siddiqui @shamoons

  2. What are packages? • Ruby has Gems • Python has PyPI • PHP has PEAR (terrible) • Node.js has Packages

  3. Node Package Manager (NPM) • Get NPM at http://npmjs.org/ • Almost 8,000 packages! • Seriously... one line install • curl http://npmjs.org/install.sh | sh

  4. Awesome Packages • express • mongoose • async • socket.io • request

  5. express • Kickass Framework for Web Application Development • Routing • Sessions • Templating • $: npm install –g express • $: express mysite

  6. routes/index.js

  7. mongoose • MongoDB is awesome (look at where we are!!!!) • Interaction with MongoDB via an ODM • Keeps Code Clean

  8. Models Screenshots from MongooseJs.com

  9. Mongoose Functions Finding Model.find({name: “shamoon”}, function(err, data){console.log(data);}) Model.findOne() Model.findById()

  10. async • Callbacks are awesome • Except when they’re nested • Unless they’re well managed • Then nesting doesn’t become a huge issue • But it is still difficult to read • A function within a function • …within a function

  11. WTF??

  12. Adapted from Ryan Roemer (@ryan_roemer)

  13. Control Flow Series series waterfall Parallel parallel queue

  14. socket.io Server Client

  15. Emit and Receive • Basic model is to "emit" an event with data • Received "listens" for events • Acts on reception of event • Client or Server can be emitter or listener

  16. request • HTTP Requests made easy • POST • GET • JSON • XML

  17. Instant Proxy Server! https://github.com/mikeal/request

  18. Questions? Shamoon Siddiqui @shamoons

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