after-refact.kt

private fun requestContributor(name: String): Contributor {
    val contributors =
        with(client) {
            val response =
                Request.Builder().url(ENDPOINT).build().let { newCall(it).execute() }
            val responseAsString = response.use {
                it.body()?.source()?.readByteArray()?.let { String(it) }
                        ?: throw IllegalStateException("No response from server!")
            }
            responseAsString.let {
                LOG.debug("response from git api: $it\n")
                 mapper.readValue(it)
            }
        }
    return contributors.first { it.login == name }.also {
        cachedLeadResults[name] = it
        LOG.debug("found kotlin contributor: $it")
    }
}