private Task <WriteResult> SetStreamMetadataInternal(StreamMetadata metadata,
AppendReq appendReq,
UserCredentials userCredentials,
CancellationToken cancellationToken) =>
AppendToStreamInternal(appendReq, new[] {
new EventData(Uuid.NewUuid(), SystemEventTypes.StreamMetadata,
JsonSerializer.SerializeToUtf8Bytes(metadata, StreamMetadataJsonSerializerOptions)),
}, userCredentials, cancellationToken);
private async Task <WriteResult> AppendToStreamInternal(
AppendReq header,
IEnumerable <EventData> eventData,
EventStoreClientOperationOptions operationOptions,
UserCredentials userCredentials,
CancellationToken cancellationToken)
{
using var call = _client.Append(RequestMetadata.Create(userCredentials),
deadline: DeadLine.After(operationOptions.TimeoutAfter), cancellationToken: cancellationToken);
try {
await call.RequestStream.WriteAsync(header).ConfigureAwait(false);
foreach (var e in eventData)
{
_log.LogTrace("Appending event to stream - {streamName}@{eventId} {eventType}.",
header.Options.StreamName, e.EventId, e.Type);
await call.RequestStream.WriteAsync(new AppendReq {
ProposedMessage = new AppendReq.Types.ProposedMessage {
Id = e.EventId.ToDto(),
Data = ByteString.CopyFrom(e.Data.Span),
CustomMetadata = ByteString.CopyFrom(e.Metadata.Span),
Metadata =
{
{ Constants.Metadata.Type, e.Type },
{ Constants.Metadata.ContentType, e.ContentType }
}
}
}).ConfigureAwait(false);
}
await call.RequestStream.CompleteAsync().ConfigureAwait(false);
} catch (InvalidOperationException exc) {
_log.LogTrace(exc, "Got InvalidOperationException when appending events to stream - {streamName}. This is perfectly normal if the connection was closed from the server-side.", header.Options.StreamName);
} catch (RpcException exc) {
_log.LogTrace(exc, "Got RpcException when appending events to stream - {streamName}. This is perfectly normal if the connection was closed from the server-side.", header.Options.StreamName);
}
var response = await call.ResponseAsync.ConfigureAwait(false);
var writeResult = new WriteResult(
response.CurrentRevisionOptionCase == AppendResp.CurrentRevisionOptionOneofCase.NoStream
? AnyStreamRevision.NoStream.ToInt64()
: new StreamRevision(response.CurrentRevision).ToInt64(),
response.PositionOptionCase == AppendResp.PositionOptionOneofCase.Position
? new Position(response.Position.CommitPosition, response.Position.PreparePosition)
: default);
_log.LogDebug("Append to stream succeeded - {streamName}@{logPosition}/{nextExpectedVersion}.",
header.Options.StreamName, writeResult.LogPosition, writeResult.NextExpectedVersion);
return(writeResult);
}
public async Task <IActionResult> Append([FromBody] AppendReq req)
{
if (string.IsNullOrWhiteSpace(req.Key) || req.Value == null)
{
NotFound("Method Dictionary/Append params");
}
Logger.LogInformation($"Append dictionary key: {req.Key}, value: ${req.Value}");
await _service.Append(req.Key, req.Value).ConfigureAwait(false);
return(Ok());
}
private async Task <WriteResult> AppendToStreamInternal(
AppendReq header,
IEnumerable <EventData> eventData,
UserCredentials userCredentials,
CancellationToken cancellationToken)
{
using var call = _client.Append(RequestMetadata.Create(userCredentials),
cancellationToken: cancellationToken);
await call.RequestStream.WriteAsync(header);
foreach (var e in eventData)
{
await call.RequestStream.WriteAsync(new AppendReq {
ProposedMessage = new AppendReq.Types.ProposedMessage {
Id = new Streams.UUID {
String = e.EventId.ToString("n")
},
Data = ByteString.CopyFrom(e.Data),
CustomMetadata = ByteString.CopyFrom(e.Metadata),
Metadata =
{
{ Constants.Metadata.Type, e.Type },
{ Constants.Metadata.IsJson, e.IsJson.ToString().ToLowerInvariant() }
}
}
});
}
await call.RequestStream.CompleteAsync();
var response = await call.ResponseAsync;
return(new WriteResult(
response.CurrentRevisionOptionsCase == AppendResp.CurrentRevisionOptionsOneofCase.NoStream
? AnyStreamRevision.NoStream.ToInt64()
: new StreamRevision(response.CurrentRevision).ToInt64(),
response.PositionOptionsCase == AppendResp.PositionOptionsOneofCase.Position
? new Position(response.Position.CommitPosition, response.Position.PreparePosition)
: default));
}
private async Task <IWriteResult> AppendToStreamInternal(
AppendReq header,
IEnumerable <EventData> eventData,
EventStoreClientOperationOptions operationOptions,
UserCredentials?userCredentials,
CancellationToken cancellationToken)
{
using var call = new Streams.Streams.StreamsClient(
await SelectCallInvoker(cancellationToken).ConfigureAwait(false)).Append(EventStoreCallOptions.Create(
Settings, operationOptions, userCredentials, cancellationToken));
IWriteResult writeResult;
try {
await call.RequestStream.WriteAsync(header).ConfigureAwait(false);
foreach (var e in eventData)
{
_log.LogTrace("Appending event to stream - {streamName}@{eventId} {eventType}.",
header.Options.StreamIdentifier, e.EventId, e.Type);
await call.RequestStream.WriteAsync(new AppendReq {
ProposedMessage = new AppendReq.Types.ProposedMessage {
Id = e.EventId.ToDto(),
Data = ByteString.CopyFrom(e.Data.Span),
CustomMetadata = ByteString.CopyFrom(e.Metadata.Span),
Metadata =
{
{ Constants.Metadata.Type, e.Type },
{ Constants.Metadata.ContentType, e.ContentType }
}
}
}).ConfigureAwait(false);
}
} finally {
await call.RequestStream.CompleteAsync().ConfigureAwait(false);
var response = await call.ResponseAsync.ConfigureAwait(false);
if (response.Success != null)
{
writeResult = new SuccessResult(response.Success.CurrentRevisionOptionCase ==
AppendResp.Types.Success.CurrentRevisionOptionOneofCase.NoStream
? StreamRevision.None
: new StreamRevision(response.Success.CurrentRevision),
response.Success.PositionOptionCase == AppendResp.Types.Success.PositionOptionOneofCase.Position
? new Position(response.Success.Position.CommitPosition,
response.Success.Position.PreparePosition)
: default);
_log.LogDebug("Append to stream succeeded - {streamName}@{logPosition}/{nextExpectedVersion}.",
header.Options.StreamIdentifier, writeResult.LogPosition, writeResult.NextExpectedStreamRevision);
}
else
{
if (response.WrongExpectedVersion != null)
{
var actualStreamRevision = response.WrongExpectedVersion.CurrentRevisionOptionCase switch {
AppendResp.Types.WrongExpectedVersion.CurrentRevisionOptionOneofCase.CurrentNoStream =>
StreamRevision.None,
_ => new StreamRevision(response.WrongExpectedVersion.CurrentRevision)
};
_log.LogDebug(
"Append to stream failed with Wrong Expected Version - {streamName}/{expectedRevision}/{currentRevision}",
header.Options.StreamIdentifier, new StreamRevision(header.Options.Revision),
actualStreamRevision);
if (operationOptions.ThrowOnAppendFailure)
{
if (response.WrongExpectedVersion.ExpectedRevisionOptionCase == AppendResp.Types
.WrongExpectedVersion.ExpectedRevisionOptionOneofCase.ExpectedRevision)
{
throw new WrongExpectedVersionException(header.Options.StreamIdentifier,
new StreamRevision(response.WrongExpectedVersion.ExpectedRevision),
actualStreamRevision);
}
var expectedStreamState = response.WrongExpectedVersion.ExpectedRevisionOptionCase switch {
AppendResp.Types.WrongExpectedVersion.ExpectedRevisionOptionOneofCase.ExpectedAny =>
StreamState.Any,
AppendResp.Types.WrongExpectedVersion.ExpectedRevisionOptionOneofCase.ExpectedNoStream =>
StreamState.NoStream,
AppendResp.Types.WrongExpectedVersion.ExpectedRevisionOptionOneofCase.ExpectedStreamExists =>
StreamState.StreamExists,
_ => throw new InvalidOperationException()
};
throw new WrongExpectedVersionException(header.Options.StreamIdentifier,
expectedStreamState, actualStreamRevision);
}
if (response.WrongExpectedVersion.ExpectedRevisionOptionCase == AppendResp.Types
.WrongExpectedVersion.ExpectedRevisionOptionOneofCase.ExpectedRevision)
{
writeResult = new WrongExpectedVersionResult(header.Options.StreamIdentifier,
new StreamRevision(response.WrongExpectedVersion.ExpectedRevision),
actualStreamRevision);
}
else
{
writeResult = new WrongExpectedVersionResult(header.Options.StreamIdentifier,
StreamRevision.None,
actualStreamRevision);
}
}
else
{
throw new InvalidOperationException("The operation completed with an unexpected result.");
}
}
}
return(writeResult);
}
}
}
