Code Path per Flavor in Android Gradle

Question

I have 2 buildTypes (debug, release) and 2 productFlavors (product1, product2). I want to define a buildConfigField for each buildType and productFlavors. The buildConfigField is the url the app to download data from the server, and it changes for each productFlavor and buildTypes.

Now, I have:

buildTypes {
    debug {
        debuggable true
    }
    release {
        debuggable false
    }
}
productFlavors {
    product1 {
        buildConfigField STRING, "URL_BASE",  '"https://api1.release.com"'

    }
    product2 {
        buildConfigField STRING, "URL_BASE", '"https://api2.release.com"'

    }
}

But I want something like this:

buildTypes {
    debug {
        debuggable true
    }
    release {
        debuggable false
    }
}
productFlavors {
    product1 {
        debug {
            buildConfigField STRING, "URL_BASE",  '"https://api1.debug.com"'
        }
        release {
            buildConfigField STRING, "URL_BASE",  '"https://api1.release.com"'
    }
    product2 {
        debug {
            buildConfigField STRING, "URL_BASE", '"https://api2.debug.com"'
            }
        release {
            buildConfigField STRING, "URL_BASE", '"https://api2.release.com"'
        }
    }
}

How I can achieve this?

Update:

Each URL_BASE has a different pattern so I can't group the URLs. A posible solution is to add the url base of the 2 flavor in the different build types and select the right one in the flavor.

buildTypes {
    debug {
        debuggable true
        buildConfigField STRING, API_VARIANT_PRODUCT1, '"api1.deb.com"'
        buildConfigField STRING, API_VARIANT_PRODUCT2, '"api2.debug.com"'

    }
    release {
        debuggable false
        buildConfigField STRING, API_VARIANT_PRODUCT1, '"api1.release.com"'
        buildConfigField STRING, API_VARIANT_PRODUCT2, '"api2.release.com"'
    }
}

productFlavors {
    product1 {
        buildConfigField STRING, URL_BASE, '"https://"   API_VARIANT_PRODUCT1   "/v1"'
    }
    product2 {
        buildConfigField STRING, URL_BASE, '"https://"   API_VARIANT_PRODUCT2   "/v1"'
    }
  }
}

UPDATE 2

If you need to add resources in gradle, like a 'KEY_MAP' the solution is in this page.

Solution

@Beni, you can use something like this

buildTypes {
    debug {
        debuggable true
        buildConfigField("String", "API_VARIANT", '"debugvariant"')
    }
    release {
        debuggable false
        buildConfigField("String", "API_VARIANT", '"releasevariant"')
    }
}
productFlavors {
    product1 {
        buildConfigField("String", "URL_BASE", '"https://api1."   API_VARIANT   ".com"')
    }
    product2 {
        buildConfigField("String", "URL_BASE", '"https://api2."   API_VARIANT   ".com"')
    }
}

The problem with what you were proposing to do is that the last definition of the the buildConfigField STRING, "URL_BASE" values for each buildType will get used in all product flavors. So what you would end up with would be something like "https://api2.release.com" in both release versions.

Using the above you will end up with something like this in your BuildConfig files for each variant

// Fields from build type: debug
public static final String API_VARIANT = ["debugvariant"|"releasevariant"];
// Fields from product flavor: [product1|product2]
public static final String URL_BASE = "https://[api1|api2]."   API_VARIANT   ".com";

Hope this helps.