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Add client-side Streamable HTTP transport support (#356)

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Stephen Halter 2025-04-30 17:21:43 -07:00 • committed by GitHub
commit e913d80f05
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1 changed files with 908 additions and 464 deletions
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46
tests/ModelContextProtocol.Tests/Transport/SseClientTransportTests.cs
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@ -120,52 +120,6 @@ public class SseClientTransportTests : LoggedTest
Assert.True(true);
}
[Fact]
public async Task SendMessageAsync_Handles_Accepted_Json_RPC_Response()
{
using var mockHttpHandler = new MockHttpHandler();
using var httpClient = new HttpClient(mockHttpHandler);
await using var transport = new SseClientTransport(_transportOptions, httpClient, LoggerFactory);
var eventSourcePipe = new Pipe();
var eventSourceData = "event: endpoint\r\ndata: /sseendpoint\r\n\r\n"u8;
eventSourceData.CopyTo(eventSourcePipe.Writer.GetSpan(eventSourceData.Length));
eventSourcePipe.Writer.Advance(eventSourceData.Length);
await eventSourcePipe.Writer.FlushAsync(TestContext.Current.CancellationToken);
var firstCall = true;
mockHttpHandler.RequestHandler = (request) =>
{
if (request.Method == HttpMethod.Post && request.RequestUri?.AbsoluteUri == "http://localhost:8080/sseendpoint")
{
return Task.FromResult(new HttpResponseMessage
{
StatusCode = HttpStatusCode.OK,
Content = new StringContent("{\"jsonrpc\":\"2.0\", \"id\": \"44\", \"result\": null}")
});
}
else
{
if (!firstCall)
throw new IOException("Abort");
else
firstCall = false;
return Task.FromResult(new HttpResponseMessage
{
StatusCode = HttpStatusCode.OK,
Content = new StreamContent(eventSourcePipe.Reader.AsStream()),
});
}
};
await using var session = await transport.ConnectAsync(TestContext.Current.CancellationToken);
await session.SendMessageAsync(new JsonRpcRequest() { Method = RequestMethods.Initialize, Id = new RequestId(44) }, CancellationToken.None);
Assert.True(true);
eventSourcePipe.Writer.Complete();
}
[Fact]
public async Task ReceiveMessagesAsync_Handles_Messages()
{