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Configurable messages endpoint for SSE transport #109

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merged 1 commit into from
Mar 27, 2025
Merged

Configurable messages endpoint for SSE transport #109

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8 changes: 5 additions & 3 deletions src/ModelContextProtocol/Protocol/Transport/SseResponseStreamTransport.cs
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Original file line number Diff line number Diff line change
@@ -1,4 +1,5 @@
using System.Buffers;
using System.Text;
using System.Buffers;
using System.Net.ServerSentEvents;
using System.Text.Json;
using System.Threading.Channels;
Expand All @@ -11,7 +12,8 @@ namespace ModelContextProtocol.Protocol.Transport;
/// Implements the MCP SSE server transport protocol using the SSE response <see cref="Stream"/>.
/// </summary>
/// <param name="sseResponseStream">The stream to write the SSE response body to.</param>
public sealed class SseResponseStreamTransport(Stream sseResponseStream) : ITransport
/// <param name="messageEndpoint">The endpoint to send JSON-RPC messages to. Defaults to "/message".</param>
public sealed class SseResponseStreamTransport(Stream sseResponseStream, string messageEndpoint = "/message") : ITransport
{
private readonly Channel<IJsonRpcMessage> _incomingChannel = CreateSingleItemChannel<IJsonRpcMessage>();
private readonly Channel<SseItem<IJsonRpcMessage?>> _outgoingSseChannel = CreateSingleItemChannel<SseItem<IJsonRpcMessage?>>();
Expand All @@ -34,7 +36,7 @@ void WriteJsonRpcMessageToBuffer(SseItem<IJsonRpcMessage?> item, IBufferWriter<b
{
if (item.EventType == "endpoint")
{
writer.Write("/message"u8);
writer.Write(Encoding.UTF8.GetBytes(messageEndpoint));
return;
}

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