public async Task <Response> GetPage(ReadStreamOptions options, CancellationToken cancellationToken)
{
var operation = options.GetReadOperation();
var page = await operation.Invoke(_streamStore, cancellationToken);
var payloads = await Task.WhenAll(page.Messages
.Select(message => options.EmbedPayload
? message.GetJsonData(cancellationToken)
: Task.FromResult <string>(null))
.ToArray());
return(new Response(
new HALResponse(new object())
.AddLinks(StreamLinks.Self(options))
.AddLinks(StreamLinks.Navigation(page, options.Self))
.AddLinks(StreamLinks.Feed(page))
.AddEmbeddedCollection(
Relations.Message,
page.Messages.Zip(payloads,
(message, payload) => new HALResponse(new
{
message.MessageId,
message.CreatedUtc,
message.Position,
message.StreamId,
message.StreamVersion,
message.Type,
payload
}).AddLinks(StreamMessageLinks.Self(message))))));
}
public async Task <Response> GetMessage(
ReadStreamMessageOptions options,
CancellationToken cancellationToken)
{
var operation = options.GetReadOperation();
var message = await operation.Invoke(_streamStore, cancellationToken);
if (message.MessageId == Guid.Empty)
{
return(new Response(
new HALResponse(new
{
options.StreamId,
options.StreamVersion
})
.AddLinks(StreamMessageLinks.Self(options))
.AddLinks(StreamMessageLinks.Navigation(options))
.AddLinks(StreamLinks.Feed(options)),
404));
}
var payload = await message.GetJsonData(cancellationToken);
return(new Response(
new HALResponse(new
{
message.MessageId,
message.CreatedUtc,
message.Position,
message.StreamId,
message.StreamVersion,
message.Type,
payload
})
.AddLinks(StreamMessageLinks.Self(options))
.AddLinks(StreamMessageLinks.Navigation(options, message))
.AddLinks(StreamLinks.Feed(options))));
}
