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[WIP] StreamableHttpServerTransport implementation (#449)

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# [WIP] StreamableHttpServerTransport implementation

- Implement StreamableHttpServerTransport for MCP spec
- Support both SSE streaming and direct HTTP JSON responses
- Add event store interface for resumability

> [!IMPORTANT]  
> The work is in progress. StreamableHttpServerTransport is not
production-ready yet!!!

Based on #235 

## How Has This Been Tested?
<!-- Have you tested this in a real application? Which scenarios were
tested? -->

## Breaking Changes
None

## Types of changes
- [ ] Bug fix (non-breaking change which fixes an issue)
- [x] New feature (non-breaking change which adds functionality)
- [ ] Breaking change (fix or feature that would cause existing
functionality to change)
- [ ] Documentation update

## Checklist
- [x] I have read the [MCP
Documentation](https://modelcontextprotocol.io)
- [x] My code follows the repository's style guidelines
- [x] New and existing tests pass locally
- [x] I have added appropriate error handling
- [x] I have added or updated documentation as needed
This commit is contained in:
Pavel Gorgulov 2025-12-05 18:51:19 +01:00 • committed by GitHub
commit 10a0b67204
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1 changed files with 1024 additions and 3 deletions
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10
kotlin-sdk-core/api/kotlin-sdk-core.api
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@ -988,6 +988,7 @@ public final class io/modelcontextprotocol/kotlin/sdk/types/ClientResult$Default
}
public final class io/modelcontextprotocol/kotlin/sdk/types/CommonKt {
public static final field DEFAULT_NEGOTIATED_PROTOCOL_VERSION Ljava/lang/String;
public static final field LATEST_PROTOCOL_VERSION Ljava/lang/String;
public static final fun ProgressToken (J)Lio/modelcontextprotocol/kotlin/sdk/types/RequestId;
public static final fun ProgressToken (Ljava/lang/String;)Lio/modelcontextprotocol/kotlin/sdk/types/RequestId;
@ -2046,6 +2047,15 @@ public final class io/modelcontextprotocol/kotlin/sdk/types/InitializedNotificat
public final fun serializer ()Lkotlinx/serialization/KSerializer;
}
public final class io/modelcontextprotocol/kotlin/sdk/types/JSONRPCEmptyMessage : io/modelcontextprotocol/kotlin/sdk/types/JSONRPCMessage {
public static final field INSTANCE Lio/modelcontextprotocol/kotlin/sdk/types/JSONRPCEmptyMessage;
public fun equals (Ljava/lang/Object;)Z
public fun getJsonrpc ()Ljava/lang/String;
public fun hashCode ()I
public final fun serializer ()Lkotlinx/serialization/KSerializer;
public fun toString ()Ljava/lang/String;
}
public final class io/modelcontextprotocol/kotlin/sdk/types/JSONRPCError : io/modelcontextprotocol/kotlin/sdk/types/JSONRPCMessage {
public static final field Companion Lio/modelcontextprotocol/kotlin/sdk/types/JSONRPCError$Companion;
public fun <init> (Lio/modelcontextprotocol/kotlin/sdk/types/RequestId;Lio/modelcontextprotocol/kotlin/sdk/types/RPCError;)V