How to set a constant in aurelia by environment

Question

I'd like my API's base URL to change from dev to prod. In Angular I user to use a config.json file which was later injected into the app using grunt-env

Answer 1

If you use the Aurelia CLI, it will generate an environments directory inside of your aurelia_project.

Within this directory you can setup environmental configs that will be copied into environment.js in your src directory based the --env [dev/stage/prod] flag that you pass into your au build/run commands.

Then you can use import environment from './environment' to access your environment specific configuration values.

Another option that you can look into is the Aurelia Configuration Plugin, which also has dynamic environmental configs.

Answer 2

If you want to 'inject' it only once then what is stopping you from using a simple ES6 module ? It should be loaded only once from the server.

For instance you could something like that in a config.js file : (warning ! I didn't try to run it)

export var Config = {
    path : 'path to find'
};

you can then use your module anywhere you need it :

import {Config} from 'config';