• Framework sux
• Unix Philosophy rocks
• REST rocks

• Unix Philosophy + REST + JS + ... = Quiver
• Server-side component system
• New programming paradigm
• Microservice?

• Accepts key-value args and input stream
• Returns output as result stream

var helloHandler = function(args, callback) {
  callback(null, 'Hello World!')
}

exports.quiverComponents = [
  {
    name: 'demo hello handler',
    type: 'simple handler',
    inputType: 'void',
    outputType: 'text',
    handler: helloHandler
  }
]

• Simple file server serving cat pictures

$ quiver-server . --config ./config.js --main \    'quiver file directory handler'

• ImageMagick convert command

 $ convert in.jpg -resize 200 out.jpg

{
  name: 'demo resize image handler',
  type: 'stream handler',
  configOverride: {
    commandArgsExtractor: imageResizeCommandArgsExtractor,
  },
  resultContentType: 'image/jpeg',
  handler: 'quiver file convert command handler'
}

{
  name: 'demo image thumbnail handler',
  type: 'stream pipeline',
  pipeline: [
    'quiver file directory handler',
    'demo resize image handler'
  ]
}

$ quiver-server . --config ./config.js --main \
    'demo image thumbnail handler'

{
  name: 'demo image thumbnail handler',
  type: 'stream pipeline',
  middlewares: [
    'quiver memory cache filter'
  ],
  pipeline: [
    'quiver file directory handler',
    'demo resize image handler'
  ]
}

• File + Image Resize + Memory Cache
• S3 + Audio Encode + Disk Cache
• Git + Compilation + CDN Cache
• Remote API + Template + Permission

$ quiver-command . --main 'demo resize image handler' \     < static/images/blue-hat.jpg > temp/out.jpg

 $ quiver-server . --main 'demo resize image handler'

$ curl http://localhost:8080 -X POST \    --data-binary @static/images/blue-hat.jpg > temp/out.jpg

• Open source at GitHub
• https://github.com/quiverjs
  
• Still in early stage development
• Ready for production
• ScoreCloud - http://scorecloud.com
• Lack of documentation
• Contribution is welcomed