Environment variables

[AbanoubZaki]

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• I confirm I have searched the Docs, Codemagic Sample Projects, and GitHub Discussions.
• I confirm the software versions on my local computer match the ones in CI environment (e.g. Xcode version, Gradle version). See here
• I confirm I am able to do a fresh clone of the repository and build the project on my local computer.

Which mobile framework are you using?

Flutter (Dart)

Steps to reproduce

If i want to use SHA-256 certificates in the dart code but i don't want them to be on the repository.

Expected results

How to create environment variables and access it inside the dart code?

Actual results

I don't know how to access environment variables inside the dart code.

Build id (optional)

No response

[kulakarla]

Hello @AbanoubZaki

Dart has different ways of using environment variables.

One way to do it would be like this:

• Add your environment variables to Codemagic (for example, CM_TESTENV1, CM_TESTENV2)
• When building the flutter app, add --dart-define to your scripts. E.g flutter build apk --dart-define=API_KEY=$CM_TESTENV1 --dart-define=SOMEOTHERVAR=$CM_TESTENV2
• You can now access these variables in your code with String.fromEnvironment method. Example: String.fromEnvironment('API_KEY')

Refer to this article, which provides multiple ways of dealing with environment variables in Flutter. The aforementioned described method is one of the proposed ways in the article, a relatively easy one.

Let me know if manage to get everything configured to your needs. If issues occur, let me know.

[ntfnd404]

How to specify "--dart-define" when building in codemagic? i use Workflow Editor

[truszko1]

@ntfnd404 did you ever figure this out? I'm having the same confusion..

[CedricBaijot]

You can add it under Build>Build arguments. With my 3 environment variables BACKEND_URL, SUPABASE_ANNON_KEY and SUPABASE_URL it looks like this:

--build-name=1.0.$PROJECT_BUILD_NUMBER --build-number=$PROJECT_BUILD_NUMBER --dart-define=BACKEND_URL=$BACKEND_URL --dart-define=SUPABASE_ANNON_KEY=$SUPABASE_ANNON_KEY --dart-define=SUPABASE_URL=$SUPABASE_URL