Use Failsafe to clone an OkHttp/Retrofit call in Kotlin on the 2nd attempt

failsafe.kt

// Assumes a long running process where the session keys need to be renewed or possibly even re-created
var session: Session = authorization.renewSession() ?: authorization.createSession()

val retryPolicy = RetryPolicy.builder<Any>()
    .handle(ExpiredTokenError::class.java, InvalidTokenError::class.java)
    .withDelay(Duration.ofSeconds(1))
    .withMaxRetries(1)
    .onRetry {
        authorization.renewSession()?.let {
            println("Re-authorization of session succeeded")
        } ?: run {
            println("Re-authorization of session failed, creating new session")
            session = authorization.createSession()
        }
    }
    .build()

val client = OkHttpClient.Builder()
    .addInterceptor(HttpInterceptor(session.keys))

val retrofit = Retrofit.Builder()
    .client(client.build())
    .baseUrl("https://host/api/endpoint")
    .build()

val call = retrofit.create(SomeApi::class.java) // Returns value of type Call<T>
    
val response = Failsafe.with(retryPolicy).get { x: ExecutionContext<Response<T>> ->
    println("Attempts ${x.attemptCount}")

    if (x.attemptCount > 0) {
        call.clone().execute() // Can’t re-use original call on retry so need to clone it
    } else {
        call.execute()
    }
}