Throws error if same request is done in 10 seconds.

RequestRateLimiterInterceptor.kt

private const val PREFS_REQUEST_RATE_LIMITER = "request-rate-preferences"
private const val KEY_LAST_URL = "lastUrl"
private const val KEY_LAST_REQUEST_TIME = "lastRequestTime"

class RequestRateLimiterInterceptor(context: Context) : Interceptor {
    private val preferences =
        context.getSharedPreferences(PREFS_REQUEST_RATE_LIMITER, Context.MODE_PRIVATE)

    override fun intercept(chain: Interceptor.Chain): Response {
        val baseRequest = chain.request()

        val lastUrl = preferences.getString(KEY_LAST_URL, null)
        val lastRequestTime = preferences.getString(KEY_LAST_REQUEST_TIME, null)

        return if (lastUrl != null
            && lastRequestTime != null
            && lastUrl == baseRequest.url.toString()
        ) {
            if ((System.currentTimeMillis() - lastRequestTime.toLong()) > 10000) {
                insertLastUrlAndRequestTime(baseRequest)
                chain.proceed(baseRequest)
            } else {
                throw NetworkErrorException(
                    "Exact same sequential requests at a time shorter than 10 seconds. "
                            + "\n Url: $lastUrl"
                )
            }
        } else {
            insertLastUrlAndRequestTime(baseRequest)
            chain.proceed(baseRequest)
        }
    }

    private fun insertLastUrlAndRequestTime(baseRequest: Request) {
        preferences.edit {
            putString(KEY_LAST_URL, baseRequest.url.toString())
            putString(KEY_LAST_REQUEST_TIME, System.currentTimeMillis().toString())
        }
    }
}