/// <summary>
/// AppendStream appends the provides messages to the specified stream.
/// </summary>
/// <param name="streamId">The stream to append to. If the stream does not exists, it will be created.</param>
/// <param name="concurrencyCheck">The optimistic concurrency check. See <see cref="ConcurrencyCheck"/> for different options.</param>
/// <param name="messages">The messages to append.</param>
/// <returns>The position in the stream of the first message that has been written.</returns>
public async Task <long> AppendStream(string streamId, ConcurrencyCheck concurrencyCheck, IEnumerable <MessageInput> messages)
{
var request = new AppendStreamRequest
{
Database = _db,
Stream = streamId,
ExpectedVersion = -2,
};
concurrencyCheck.InterceptRequest(request);
foreach (var m in messages)
{
if (string.IsNullOrEmpty(m.Type))
{
throw new ArgumentNullException(nameof(m.Type), "missing type name");
}
request.Messages.Add(new Wire.MessageInput
{
Type = m.Type,
Header = ByteString.CopyFrom(m.Header ?? new byte[0]),
Value = ByteString.CopyFrom(m.Value ?? new byte[0]),
});
}
var reply = await _client.AppendStreamAsync(request, _metadata);
return(reply.From);
}
/// <summary> /// AppendStream appends the provides messages to the specified stream. /// </summary> /// <param name="streamId">The stream to append to. If the stream does not exists, it will be created.</param> /// <param name="concurrencyCheck">The optimistic concurrency check. See <see cref="ConcurrencyCheck"/> for different options.</param> /// <param name="messages">The messages to append.</param> /// <returns>The position in the stream of the first message that has been written.</returns> public async Task <long> AppendStream(string streamId, ConcurrencyCheck concurrencyCheck, params MessageInput[] messages) => await AppendStream(streamId, concurrencyCheck, (IEnumerable <MessageInput>) messages);
/// <summary> /// AppendStream appends the provides messages to the specified stream. /// </summary> /// <param name="streamId">The stream to append to. If the stream does not exists, it will be created.</param> /// <param name="messages">The messages to append.</param> /// <returns>The position in the stream of the first message that has been written.</returns> public async Task <long> AppendStream(string streamId, params MessageInput[] messages) => await AppendStream(streamId, ConcurrencyCheck.Skip(), messages);
/// <summary> /// AppendStream appends the provides messages to the specified stream. /// </summary> /// <param name="streamId">The stream to append to. If the stream does not exists, it will be created.</param> /// <param name="messages">The messages to append.</param> /// <returns>The position in the stream of the first message that has been written.</returns> public async Task <long> AppendStream(string streamId, IEnumerable <MessageInput> messages) => await AppendStream(streamId, ConcurrencyCheck.Skip(), messages);
public StreamInput(string stream, ConcurrencyCheck concurrencyCheck, IEnumerable <MessageInput> messages)
{
Stream = stream;
ConcurrencyCheck = concurrencyCheck;
Messages = messages;
}
public StreamInput(string stream, IEnumerable <MessageInput> messages) : this(stream, ConcurrencyCheck.Skip(), messages)
{
}