The environment feature allows you to change sets of API Endpoints, Keys, Tokens, App Behavior Switches, Debugging Options and much more with a single parameter for you gulp tasks.
Your main
module per default contains the two files env-dev.json
and env-prod.json
located under app/main/constants/
. Any key value pair you define in those files will be copied into the Config.ENV
constant located in app/main/constants/config-const.js
, depending on which environment you choose. So when you're working on dev, all key value pairs from the main
module's env-dev.json
will be copied to your config-const.js
. Same goes for the prod environment respectively. Then simply inject the Config
constant in any service or controller where you need to use it.
env-dev.json
{
"SERVER_URL": "https://DEVSERVER/api",
"API_KEY": "*#(&JNF(#I#(FJAPJ981374io(FD**))))",
"DEBUG_LEVEL": 2,
"FEATURE_SWITCHES": {
"LOGIN": true,
"DASHBOARD": true,
"ADMINISTRATION": false
}
}
config-const.js
'use strict';
angular.module('main')
.constant('Config', {
// gulp environment: injects environment vars
ENV: {
/*inject-env*/
'SERVER_URL': 'https://DEVSERVER/api',
'API_KEY': '*#(&JNF(#I#(FJAPJ981374io(FD**))))',
'DEBUG_LEVEL': 2,
'FEATURE_SWITCHES': {
'LOGIN': true,
'DASHBOARD': true,
'ADMINISTRATION': false
}
/*endinject*/
},
// gulp build-vars: injects build vars
BUILD: {
/*inject-build*/
/*endinject*/
}
});
some-ctrl.js
'use strict';
angular.module('main')
.controller('SomeCtrl', function ($log, Config) {
$log.log('Firing against Server:' + Config.ENV.SERVER_URL);
$log.log('Using API Key:' + Config.ENV.API_KEY);
$log.log('Debug Level is:' + Config.ENV.DEBUG_LEVEL);
// TODO: code to include features based on FEATURE_SWITCHES
});
When you run gulp watch
or any other task that runs gulp build
without specifying an environment it will default to the dev environment:
gulp watch # defaults to --env=dev
gulp build # so does this
gulp --cordova "run ios" # and any other command that uses gulp build
In order to choose an environment explicitly add the --env
flag, like this:
gulp watch --env=prod
gulp build --env=prod
gulp --cordova "run ios" --env=prod
While you're running gulp watch
you can even temporarily switch the environment you're currently working on without having to restart your watch task. Simply type:
gulp environment --env=<env>
Gulp will livereload with your new environment! It's important to note that as soon as you are making more changes and a livereload is triggered, your environment switches back to the one that was supplied when gulp watch
was started. If you want to permanently switch your environment you should do so by restarting your gulp watch
tasks with the desired environment.
If you find yourself faced needing more than a dev and a prod environment simply create a new file: e.g. app/main/constants/env-env5.json
, fill it with the desired values and then run one the following:
gulp watch --env=env5
gulp build --env=env5
gulp environment --env=env5
In case your project grows large and you have several modules in your project you will probably find yourself wanting to share environments across all modules. No problem. Every module you create has it's own Config
constant located in app/module/constants/config-const.js
. But only your main
module contains the environment files. The gulp tasks will automatically copy the environments to all of your modules' Config.ENV
constants. Alternatively just share your main's Config
constant across all modules and simply remove the other constants.