gokmenbayram

    implementation 'com.squareup.retrofit2:retrofit:2.8.0'
    implementation 'com.squareup.retrofit2:converter-gson:2.3.0'

gokmenbayram

data class Version(
    @SerializedName("documents")
    var documents: List<DocumentItems>
)

gokmenbayram

data class DocumentItems(

    @SerializedName("name")
    var name: String,
    @SerializedName("fields")
    var fields: Fields,
    @SerializedName("createdTime")
    var createdTime: String,
    @SerializedName("updateTime")
    var updateTime: String,

gokmenbayram

data class Fields(
    @SerializedName("app_version")
    var app_version: StringValue
)

gokmenbayram

data class StringValue(
    @SerializedName("stringValue")
    var version: String
)

gokmenbayram

private const val BASE_URL = "https://firestore.googleapis.com/v1/projects/firestoreforceupdate/databases/"

class FirebaseClient {

    // Coroutines
    private val job = Job()
    private val coroutineContext = Dispatchers.IO + job
    private val uiScope = CoroutineScope(coroutineContext)

    fun getAppVersionFromApi(callback: (isSuccess: Boolean, response: Version?, message: String?) -> (Unit)) {

gokmenbayram

object ApiClient {

    private var retrofit: Retrofit? = null

    fun api(url: String): Retrofit {
        retrofit =
            Retrofit.Builder()
                .baseUrl(url)
                .addConverterFactory(GsonConverterFactory.create())
                .build()

gokmenbayram

interface ApiService {
    @GET("(default)/documents/forceupdate")
    fun getVersion(): Call<Version>
}

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class MainActivity : AppCompatActivity() {

    private val apiClient by lazy { FirebaseClient() }

    override fun onCreate(savedInstanceState: Bundle?) {
        super.onCreate(savedInstanceState)
        setContentView(R.layout.activity_main)

        apiClient.getAppVersionFromApi { isSuccess, response, message ->
            if (isSuccess) {

gokmenbayram

android {
    buildFeatures {
        viewBinding = true
    }
}