Gulp commands are simple and sometimes not intuitive, so you need to read practical examples before using it.

Deploy to S3

You can deploy frontend code on any static web host, like AWS S3. You just need to add deploy task that is using gulp-awspublish npm install --save-dev gulp-awspublish .

It has some problems when bucket is from eu-central-1 and contains dots, so read aws s3

// gulp/build.js
var awspublish = require('gulp-awspublish');

gulp.task('deploy', ['build'], function() {
  console.log("AWS_BUCKET_NAME=" + process.env.AWS_BUCKET_NAME);
  console.log("AWS_REGION=" + process.env.AWS_REGION);
  console.log("AWS_ACCESS_KEY_ID=" + process.env.AWS_ACCESS_KEY_ID);
  console.log("AWS_SECRET_ACCESS_KEY=" + process.env.AWS_SECRET_ACCESS_KEY);
  if (!process.env.AWS_BUCKET_NAME || !process.env.AWS_ACCESS_KEY_ID || !process.env.AWS_SECRET_ACCESS_KEY) {
    console.error('You must provide bucket name, access key id and secret access key to deploy.');
  // create a new publisher using S3 options
  var publisher = awspublish.create({
    region: process.env.AWS_REGION,
    params: {
      Bucket: process.env.AWS_BUCKET_NAME
    accessKeyId: process.env.AWS_ACCESS_KEY_ID,
    secretAccessKey: process.env.AWS_SECRET_ACCESS_KEY

  // define custom headers for assets
  var headers = {
    'Cache-Control': 'max-age=0, s-maxage=86400'

  return gulp.src(['dist/**/*'])

Gulp api production or local

To change which api should be used, I use param --api like

gulp serve --api production
gulp serve --api localhost:3000
gulp clean && gulp deploy --api production

Note that you need to stop eventual gulp serve for localhost, when you want to deploy for production.

First install gulp-if with npm install yargs gulp-if --save-dev. Than add to gulp/script.js

// gulp/script.js
var replace = require('gulp-replace');
var argv = require('yargs').argv;
var gulpif = require('gulp-if');
var serverUrl = false; // default is what is defined in
if (argv.api == 'production') {
} else if (argv.api) {
  serverUrl = '"http://' + argv.api + '"';
// inside `function buildScripts()` insert as first pipe, below return
    .pipe(gulpif(!!serverUrl,replace(/API_URL: \w*SERVER_URL/g, 'API_URL: ' + serverUrl)))
# src/app/
# do not rename this constants since they are used in gulp scripts task
LOCAL_SERVER_URL = 'http://localhost:3000'
  .constant 'CONFIG',

Since Ionic command line does not pass params to gulp, there is Enviroment approach to select SERVER_URL on ionic page

Adding coffeescript and jade example you can find on that ionic page.