7/31/2019 Node.js Hackathon

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Who are you?

•bit.ly/rcorsaro

• @doki_pen

• github.com/dokipen

•works @ embed.ly

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Agenda

• Nodejs intro

•  API Recipe

• Demo

• Questions

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Node Intro

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Why Node?

•  Async, fast enough for web programming

• Very active and talented community

• NPM makes code reuse a breeze• Honestly, javascript isn't that bad

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Installing Node

https://github.com/creationix/nvm

$ git clone git://github.com/creationx/nvm.git ~/nvm$ . ~/nvm/nvm.sh

$ nvm install v0.8.6$ nvm alias default 0.8.6

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Hello World

var http = require('http'); 

http.createServer (function (request, response) { 

response.writeHead(200, {'Content-Type': 'text/plain'}); 

response.end('Hello World\n');}).listen(8124); 

console.log('Server running at http://127.0.0.1:8124/');

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Debugging

https://github.com/dannycoates/node-inspector 

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Testing

• https://github.com/visionmedia/should.js

• https://github.com/visionmedia/mocha

• https://github.com/visionmedia/supertest

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NPM Everything

{"name": "hackathon","version": "0.0.1","description": "My hackathon project","main": "index.js","scripts": {

"test": "mocha" },"dependencies": {

"express": "3.0.0rc2","mongodb": "0.0.1" 

},"devDependencies": {

"mocha": "*","should": "*","supertest": "*" 

},"author ": "Bob Corsaro","license": "MIT" 

}

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API Recipe

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API Recipe (Yak Shaving)

• Documentation

• Performance tracking

•  Authentication

• Usage tracking

•  Access Control (rate-limits, privileges)

• The actual service (and tests)

There are companies that do a lot of this for you for $. (mashery, apigee, 3scale)

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Documentation

Remember wsdls? Contracts matter. Discoverymatters.

https://github.com/wordnik/swagger-node-express

https://github.com/dokipen/express-endpoint

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Performance Tracking

• http://graphite.wikidot.com/

• https://github.com/etsy/statsd

• https://github.com/dokipen/connect-statsd

BSD, Solaris or SmartOS dtrace

Linux =(

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Authentication

If your API is public, you'll want to do thefollowing.

• Distribute keys (we have a django app for that) uuid4 is good

•  Authenticate keys (we have a connect

middleware for that)• Support 2-legged OAuth. Version 1.0a is

fine.

•  Ability to block keys (we'll use it later)

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Usage Tracking

 Analytics vs. Rate Limiting

Sync vs. Async

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Access Control

• Support JSONP

• Support CORS

http://enable-cors.org/

Access-Control-Allow-Methods: GET, OPTIONS

Access-Control-Allow-Origin: *

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Demo

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Questions