0x/examples/rest-api/index.js

var etag = require('./etag')
var pkg = JSON.stringify(require('./package.json'))

var restify = require('restify')
var server = restify.createServer()
var count = 1

server.get('/a', function (req, res, next) {
  var tag = etag(pkg + ++count)

  if (!(tag instanceof Error)) {
    res.setHeader('ETag', tag)
  }

  res.send(pkg)
  return next()
})

server.get('/b', function (req, res, next) {
  var tag = etag({entity: pkg + ++count, algorithm: 'sha256'})
  if (!(tag instanceof Error)) {
    res.setHeader('ETag', tag)
  }

  res.send(pkg)
  return next()
})

server.get('/c', function (req, res, next) {
  var tag = etag(pkg + ++count, {algorithm: 'sha512WithRsaEncryption'})

  if (!(tag instanceof Error)) {
    res.setHeader('ETag', tag)
  }

  res.send(pkg)
  return next()
})

server.listen(3000)