/// <summary>
/// Attempts to parse a rate limit bucket from the response headers.
/// </summary>
/// <param name="headers">The response headers.</param>
/// <param name="result">The resulting rate limit bucket.</param>
/// <returns>true if a bucket was successfully parsed; otherwise, false.</returns>
public static bool TryParse(HttpResponseHeaders headers, [NotNullWhen(true)] out RateLimitBucket?result)
{
result = null;
try
{
if (!headers.TryGetValues("X-RateLimit-Limit", out var rawLimit))
{
return(false);
}
if (!int.TryParse(rawLimit.SingleOrDefault(), out var limit))
{
return(false);
}
if (!headers.TryGetValues("X-RateLimit-Remaining", out var rawRemaining))
{
return(false);
}
if (!int.TryParse(rawRemaining.SingleOrDefault(), out var remaining))
{
return(false);
}
if (!headers.TryGetValues("X-RateLimit-Reset", out var rawReset))
{
return(false);
}
if (!int.TryParse(rawReset.SingleOrDefault(), out var resetsAtEpoch))
{
return(false);
}
if (!headers.TryGetValues("X-RateLimit-Bucket", out var rawBucket))
{
return(false);
}
var id = rawBucket.SingleOrDefault();
if (id is null)
{
return(false);
}
var isGlobal = headers.Contains("X-RateLimit-Global");
var resetsAt = DateTime.UnixEpoch + TimeSpan.FromSeconds(resetsAtEpoch);
result = new RateLimitBucket(limit, remaining, resetsAt, id, isGlobal);
return(true);
}
catch (InvalidOperationException)
{
// More than one element in a sequence that expected one and only one
return(false);
}
}
/// <summary>
/// Attempts to parse a rate limit bucket from the response headers.
/// </summary>
/// <param name="headers">The response headers.</param>
/// <param name="result">The resulting rate limit bucket.</param>
/// <returns>true if a bucket was successfully parsed; otherwise, false.</returns>
public static bool TryParse(HttpResponseHeaders headers, [NotNullWhen(true)] out RateLimitBucket?result)
{
result = null;
if (!headers.TryGetValues("X-RateLimit-Limit", out var rawLimit))
{
return(false);
}
if (!int.TryParse(rawLimit.SingleOrDefault(), out var limit))
{
return(false);
}
if (!headers.TryGetValues("X-RateLimit-Remaining", out var rawRemaining))
{
return(false);
}
if (!int.TryParse(rawRemaining.SingleOrDefault(), out var remaining))
{
return(false);
}
if (!headers.TryGetValues("X-RateLimit-Reset", out var rawReset))
{
return(false);
}
if (!int.TryParse(rawReset.SingleOrDefault(), out var resetsAtEpoch))
{
return(false);
}
if (!headers.TryGetValues("X-RateLimit-Bucket", out var rawBucket))
{
return(false);
}
var id = rawBucket.SingleOrDefault();
if (id is null)
{
return(false);
}
var isGlobal = headers.Contains("X-RateLimit-Global");
var resetsAt = DateTime.UnixEpoch + TimeSpan.FromSeconds(resetsAtEpoch);
result = new RateLimitBucket(limit, remaining, resetsAt, id, isGlobal);
return(true);
}