/// <summary>
/// Removes the stale persisted grants.
/// </summary>
/// <returns></returns>
protected virtual async Task RemoveGrantsAsync()
{
try
{
var found = 0;
do
{
var collection = (await _persistedGrantStore.GetExpiredGrantsAsync(_options.TokenCleanupBatchSize))
.ToArray()
;
found = collection.Length;
if (found > 0)
{
_logger.LogInformation("Removing {grantCount} grants", found);
if (_operationalStoreNotification != null)
{
await _operationalStoreNotification.PersistedGrantsRemoveAsync(collection);
}
foreach (var persistedGrant in collection)
{
await _persistedGrantStore.DeleteAsync(persistedGrant);
}
}
} while (found > 0);
}
catch (Exception ex)
{
if (!HandleConcurrencyException(ex))
{
throw;
}
}
}