RetrofitClient.kt

package com.joaomartins.srodkitrwale

import android.app.Application
import android.util.Base64
import okhttp3.Interceptor
import retrofit2.Retrofit
import retrofit2.converter.gson.GsonConverterFactory
import okhttp3.OkHttpClient
import okhttp3.Request
import okhttp3.Response
import okhttp3.logging.HttpLoggingInterceptor



    val cred = username + ":" + password
    val AUTH = Base64.encodeToString(cred.getBytes(), Base64.DEFAULT).replace("\n", "")


//val AUTH2 = java.util.Base64.getEncoder().encode((username + ":" + password).toByteArray()).toString(Charsets.UTF_8)


class RetrofitClient {
    // Initializing Retrofit
    fun init() : Retrofit{

        // Creating the instance of an Interceptor
        val logging = HttpLoggingInterceptor()
        logging.level = HttpLoggingInterceptor.Level.BODY


        // Creating the OkHttp Builder
        val client = OkHttpClient().newBuilder()


        // Creating the custom Interceptor with Headers
        val interceptor = Interceptor { chain ->
            val request = chain?.request()?.newBuilder()?.addHeader("Authorization", AUTH)?.build()
            chain?.proceed(request)
        }
        client.addInterceptor(interceptor) // Attaching the Interceptor



        // Creating the instance of a Builder
        return Retrofit.Builder()
                .baseUrl("https://srodki.herokuapp.com/")   // The API server
                .client(client.build())                                     // Adding Http Client
                .addConverterFactory(GsonConverterFactory.create()) // Object Converter
                .build()
    }

    fun providesGetLogin(retrofit: Retrofit): GET_LOGIN = retrofit.create(GET_LOGIN::class.java)
}