Hey, Hope you guys are doing well, I just want to know how can I define an environment variable in t...

# multiplatform

[Puneet Verma]

Hey,
Hope you guys are doing well,
I just want to know how can I define an environment variable in the KMM project. I’m an Android Developer so for reference it is similar to BuildConfig.java file. But for a good reason I can’t access this file in the project. Could you please help me with this?
Thank you!

[Pablichjenkov]

Check yshrsmz/BuildKonfig on GitHub , see if good enough

[Magdalena Tsolaki]

I have something similar.
I am using a gradle Pluging “com.github.gmazzo.buildconfig” to create class with consts
f.e.

build.gradle.kts

buildConfig {
  val prefix = "CONST_CONFIG_";
  useKotlinOutput { topLevelConstants = true }
  useKotlinOutput { internalVisibility = false }
  className("ConstConfig")
  packageName("de.masterthesis.shared")
  com.android.build.gradle.internal.cxx.configure.gradleLocalProperties(projectDir).filterKeys {
    it.toString().contains(prefix)
  }.map {
    buildConfigField("String", it.key.toString().replace(prefix, ""), it.value.toString())
  }
}

local.properties

CONST_CONFIG_DBFILE="task.db"
CONST_CONFIG_NINJAS_API_KEY="xxxx"

after build you can use “ConstConfig.DBFILE”

[Magdalena Tsolaki]

gradle build task:

[Puneet Verma]

That's actually a nice way. I was using the buildKonfig library but it still lacks the support of accessing the variables defined in gradle.properties or maybe I didn't explore it enough. I'll try that.
PS: I'm the same person.

[Pablichjenkov]

gradle.properties works, is not related to buildkonfig. Not sure if I understand your problem

[Puneet Verma]

In Android, you can put sensitive information such as API keys and secrets in the gradle.properties file as it's not included in the build and the variables are accessible in the build.gradle file to utilise them in the buildConfigField() method. But in KMM, I couldn't access those variables in the method.
For example:
gradle.properties:

apiKey="api_key_value"

build.gradle

...
buildConfigField("String", "SOME_API_KEY", apiKey)
...

[Puneet Verma]

Now, the above example works with Android but apiKey is not accessible in KMM.

[Pablichjenkov]

It works for me, I use it in commonMain. Like I said Buildkonfig just copy that value into the config class. The fact that your value is not accessible in build.gradle is a different problem.