Create OkHttpClient worker

ApiWorker.kt

object ApiWorker {
    private var mClient: OkHttpClient? = null
    private var mGsonConverter: GsonConverterFactory? = null

    /**
     * Don't forget to remove Interceptors (or change Logging Level to NONE)
     * in production! Otherwise people will be able to see your request and response on Log Cat.
     */
    val client: OkHttpClient
        @Throws(NoSuchAlgorithmException::class, KeyManagementException::class)
        get() {
            if (mClient == null) {
                val interceptor = HttpLoggingInterceptor()
                interceptor.level = HttpLoggingInterceptor.Level.BODY

                val httpBuilder = OkHttpClient.Builder()
                httpBuilder
                        .connectTimeout(15, TimeUnit.SECONDS)
                        .readTimeout(20, TimeUnit.SECONDS)
                        .addInterceptor(interceptor)  /// show all JSON in logCat
                mClient = httpBuilder.build()

            }
            return mClient!!
        }


   val gsonConverter: GsonConverterFactory
           get() {
               if(mGsonConverter == null){
                   mGsonConverter = GsonConverterFactory
                           .create(GsonBuilder()
                           .setLenient()
                           .disableHtmlEscaping()
                           .create())
               }
               return mGsonConverter!!
           }
}