private async Task <bool> HasInvalidStatusCode(
LastChangedRecord record,
RedisStore redisStore,
int responseStatusCode,
string requestUrl,
HttpResponseMessage response)
{
if (_validStatusCodes.Contains(responseStatusCode))
{
return(false);
}
_logger.LogWarning(
"Backend call to {RequestUrl} ({AcceptType}) returned statuscode {StatusCode} which was invalid.",
requestUrl,
record.AcceptType,
response.StatusCode);
record.ErrorCount++;
record.LastError = DateTimeOffset.UtcNow;
record.LastErrorMessage = $"Backend call to {requestUrl} ({record.AcceptType}) returned statuscode {response.StatusCode} which was invalid.";
if (record.ErrorCount >= _maxErrorCount)
{
_logger.LogInformation(
"{CacheKey} reached {MaxErrorCount} errors, purging from cache.",
record.CacheKey.ToLowerInvariant(),
record.ErrorCount);
await redisStore.DeleteKeyAsync(record.CacheKey.ToLowerInvariant());
}
return(true);
}
private async Task <bool> EligibleForDeletion(
LastChangedRecord record,
RedisStore redisStore,
int responseStatusCode,
string requestUrl,
HttpResponseMessage response)
{
if (!_validStatusCodesToDelete.Contains(responseStatusCode))
{
return(false);
}
_logger.LogInformation(
"Backend call to {RequestUrl} ({AcceptType}) returned statuscode {StatusCode} which is eligible for deletion. ({CacheKey})",
requestUrl,
record.AcceptType,
response.StatusCode,
record.CacheKey.ToLowerInvariant());
await redisStore.DeleteKeyAsync(record.CacheKey.ToLowerInvariant());
record.LastPopulatedPosition = record.Position;
return(true);
}