public static Task SetSystemSettingsAsync(
this EventStoreGrpcClient client,
SystemSettings settings,
UserCredentials userCredentials = default, CancellationToken cancellationToken = default)
{
if (client == null)
{
throw new ArgumentNullException(nameof(client));
}
return(client.AppendToStreamAsync(SystemStreams.SettingsStream, AnyStreamRevision.Any,
new[] {
new EventData(Uuid.NewUuid(), SystemEventTypes.Settings,
JsonSerializer.SerializeToUtf8Bytes(settings, SystemSettingsJsonSerializerOptions))
}, userCredentials, cancellationToken));
}
public static async Task <ConditionalWriteResult> ConditionalAppendToStreamAsync(
this EventStoreGrpcClient client,
string streamName,
AnyStreamRevision expectedRevision,
IEnumerable <EventData> eventData,
UserCredentials userCredentials = default,
CancellationToken cancellationToken = default)
{
if (client == null)
{
throw new ArgumentNullException(nameof(client));
}
try {
var result = await client.AppendToStreamAsync(streamName, expectedRevision, eventData, userCredentials,
cancellationToken);
return(ConditionalWriteResult.FromWriteResult(result));
} catch (StreamDeletedException) {
return(ConditionalWriteResult.StreamDeleted);
} catch (WrongExpectedVersionException ex) {
return(ConditionalWriteResult.FromWrongExpectedVersion(ex));
}
}