bs-config.js

/*
 |--------------------------------------------------------------------------
 | Browser-sync config file
 |--------------------------------------------------------------------------
 |
 | For up-to-date information about the options:
 |   http://www.browsersync.io/docs/options/
 |
 | There are more options than you see here, these are just the ones that are
 | set internally. See the website for more info.
 |
 |
 */

var proxy = require('http-proxy-middleware'),
    fake  = require('./src/json/fake-data/bs-faker.js')

module.exports = {
  "middleware": [
    proxy('/rest',  {target: 'http://some-server'})
  ].concat(fake.json('./src/json/fake-data'))
};

bs-faker.js

/*!

Little utility that exposes fake data in the form of midllewares,
which can be used within a local server, such as browser sync,
to fake backend responses locally.

The json files should set up a url and a response
as in the examples bellow

bla.json

{
  "url": "/bla"
  "response": "blabla"
}

fake-object.json

{
  "url": "/fake-object"
  "response": {
    "some": "object"
  }
}

fake-array.json

{
  "url": "/fake-array"
  "response": [1, 2, 3, 'here', 'we', 'go!']
}

*/

var glob = require('glob'),
    path = require('path')

module.exports.json = function(folder){
  return glob
    .sync('**/*.json', {
      absolute: true,
      cwd: path.resolve(folder || '.')
    })
    .map(function(file){
      return path.resolve(folder, file)
    })
    .map(require)
    .map(function(config){
      return {
        route: config.url,
        handle: function (req, res, next) {
          var data = JSON.stringify(config.response),
              status = data.fakeFaluire ? 500 : 200

          res.writeHead(status, {'Content-Type': 'text/plain'})
          res.end(data)
          // next() commented out since browser-sync was throwing errors
        }
      }
    })
}