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You can configure the Ember App and CLI for managing the application’s environment. The environment config file will be present at config/environment.js. It contains the following code structure −

module.exports = function(environment) {
   var ENV = {
      modulePrefix: 'query-params', //it is the name of application
      environment: environment,
      baseURL: '/',
      locationType: 'auto',
      EmberENV: {
         
         FEATURES: {
            // Here you can enable experimental features on an ember canary build
            // e.g. 'with-controller': true
         }
      },

      APP: {
         // Here you can pass flags/options to your application instance
         // when it is created
         API_HOST: 'http://localhost:3000'
      }
   };

   if (environment === 'development') {
      //code here
   }

   if (environment === 'test') {
      //code here
   }

   if (environment === 'production') {
   }

   return ENV;
};

The ENV object includes the following three keys −

• EmberENV − It provides the Ember feature flags.
• APP − It is used to pass flags/options to your application instance.
• environment − It provides the current environment names such as development, production and test.

Configuring Ember CLI

You can configure the Ember CLI by adding the configurations to the .ember-cli file which is present in your application’s root.

For instance, you can pass the port number by using the command ember server –port 8080 from the command line. This configuration can be added in the .ember-cli file as shown below −

{
   "port" : 8080
}

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