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javascriptandroidreact-nativeenvironment-variablesenvironment

How can I tell react-native what .env file to look at?

On windows, I'm developing a white label app and trying to use env variables to make code specific builds. I'm using react-native-config and I followed their setup on GitHub, but for some reason SET ENVFILE=.env.myenvironment doesn't do anything for me, even with a defined map in build-gradle like this:

project.ext.envConfigFiles = [
debug: ".env",
release: ".env",
anothercustombuild: ".env.custombuild",
]

Any ideas?

Solution

  • I was using vscode integrated terminal to pass the react-native-config command to tell RN which .env file to look at, and it wasnt working at all..

    I started using powershell for windows and tryed the correct command for it. And it work wonders. e.g. $env:ENVFILE=".env.mycustomenvironment"; react-native run-android. It should work the same for react-native run-ios as well as for release builds.

    Keep in mind that as of right now (08/20/2019), react-native-config isnt working properly with product flavors in RN 0.60+ when it comes to exposing the .env vars to your .JS files, if you are looking for a workaround for that, take a look at this post but tl;dr is to use react-native-config with react-native-build-config.