public static JObject MakeCall(string uri, string query = null, int retryAfter = 0)
{
if (client == null)
{
client = new HttpClient {
BaseAddress = BaseAddress
};
client.DefaultRequestHeaders.Accept.Clear();
client.DefaultRequestHeaders.Accept.Add(new MediaTypeWithQualityHeaderValue("application/json"));
}
//string json;
var hash = (uri + query).GetHashCode();
//if (ResourceCache.TryGetResource(hash, out json))
//{
// return JObject.Parse(json);
//}
var requestUri = uri;
requestUri += "?api_key=" + ApiKey;
requestUri += (query != null) ? "&query=" + query : "";
if (retryAfter > 0)
{
Thread.Sleep((retryAfter + 1) * 1000);
}
if (remaining == 0)
{
var unixTimestamp = (int)(DateTime.UtcNow.Subtract(new DateTime(1970, 1, 1))).TotalSeconds;
if (unixTimestamp < reset)
{
Console.WriteLine(@"Gotta wait {0}.5 seconds", reset - unixTimestamp);
Thread.Sleep((reset - unixTimestamp) * 1000 + 500);
}
}
var response = client.GetAsync(requestUri).Result;
if (!response.IsSuccessStatusCode)
{
// Explicitly handle 429 errors if system time is wrong
if (response.StatusCode == (HttpStatusCode)429)
{
IEnumerable <string> retryHeader;
if (response.Headers.TryGetValues("Retry-After", out retryHeader))
{
var retry = int.Parse(retryHeader.First());
Console.WriteLine(@"retrying after {0} seconds", retry);
// ReSharper disable once TailRecursiveCall
return(MakeCall(uri, query, retry));
}
}
Console.WriteLine(@"Error: " + response.StatusCode);
return(null);
}
IEnumerable <string> values;
if (response.Headers.TryGetValues("X-RateLimit-Remaining", out values))
{
remaining = int.Parse(values.First());
}
if (response.Headers.TryGetValues("X-RateLimit-Reset", out values))
{
reset = int.Parse(values.First());
}
var json = response.Content.ReadAsStringAsync().Result;
ResourceCache.Cache(hash, json);
return(JObject.Parse(json));
}
