Code for the article: "Authorization and retrying of web requests for OkHttp and Retrofit"

AuthorizationInterceptor.kt

class AuthorizationInterceptor(
    private val authorizationRepository: AuthorizationRepository
) : Interceptor {
    override fun intercept(chain: Interceptor.Chain): Response {
        val newRequest = chain.request().signedRequest()
        return chain.proceed(newRequest)
    }

    private fun Request.signedRequest(): Request {
        val accessToken = authorizationRepository.fetchFreshAccessToken()
        return newBuilder()
            .header("Authorization", "Bearer ${accessToken.rawToken}")
            .build()
    }
}