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Add streamable http client transport (#147)

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* feat: add streamable http client

* update StreamableHttpClientTransport

* improve StreamableHttpClientTransport handling of headers, event parsing, and session termination

* add simple tests for StreamableClient and fix send

* add client mocking

* add notification e2e tests

---------

Co-authored-by: Zach Tang <zachtangoj@gmail.com>
This commit is contained in:
Pavel Gorgulov 2025-07-15 15:00:52 +02:00 • committed by GitHub
commit 2a38e59bd3
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1 changed files with 788 additions and 1 deletions
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api/kotlin-sdk.api
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@ -1070,6 +1070,8 @@ public final class io/modelcontextprotocol/kotlin/sdk/JSONRPCResponse : io/model
public static final field Companion Lio/modelcontextprotocol/kotlin/sdk/JSONRPCResponse$Companion;
public fun <init> (Lio/modelcontextprotocol/kotlin/sdk/RequestId;Ljava/lang/String;Lio/modelcontextprotocol/kotlin/sdk/RequestResult;Lio/modelcontextprotocol/kotlin/sdk/JSONRPCError;)V
public synthetic fun <init> (Lio/modelcontextprotocol/kotlin/sdk/RequestId;Ljava/lang/String;Lio/modelcontextprotocol/kotlin/sdk/RequestResult;Lio/modelcontextprotocol/kotlin/sdk/JSONRPCError;ILkotlin/jvm/internal/DefaultConstructorMarker;)V
public final fun copy (Lio/modelcontextprotocol/kotlin/sdk/RequestId;Ljava/lang/String;Lio/modelcontextprotocol/kotlin/sdk/RequestResult;Lio/modelcontextprotocol/kotlin/sdk/JSONRPCError;)Lio/modelcontextprotocol/kotlin/sdk/JSONRPCResponse;
public static synthetic fun copy$default (Lio/modelcontextprotocol/kotlin/sdk/JSONRPCResponse;Lio/modelcontextprotocol/kotlin/sdk/RequestId;Ljava/lang/String;Lio/modelcontextprotocol/kotlin/sdk/RequestResult;Lio/modelcontextprotocol/kotlin/sdk/JSONRPCError;ILjava/lang/Object;)Lio/modelcontextprotocol/kotlin/sdk/JSONRPCResponse;
public final fun getError ()Lio/modelcontextprotocol/kotlin/sdk/JSONRPCError;
public final fun getId ()Lio/modelcontextprotocol/kotlin/sdk/RequestId;
public final fun getJsonrpc ()Ljava/lang/String;
@ -2947,6 +2949,34 @@ public final class io/modelcontextprotocol/kotlin/sdk/client/StdioClientTranspor
public fun start (Lkotlin/coroutines/Continuation;)Ljava/lang/Object;
}
public final class io/modelcontextprotocol/kotlin/sdk/client/StreamableHttpClientTransport : io/modelcontextprotocol/kotlin/sdk/shared/AbstractTransport {
public synthetic fun <init> (Lio/ktor/client/HttpClient;Ljava/lang/String;Lkotlin/time/Duration;Lkotlin/jvm/functions/Function1;ILkotlin/jvm/internal/DefaultConstructorMarker;)V
public synthetic fun <init> (Lio/ktor/client/HttpClient;Ljava/lang/String;Lkotlin/time/Duration;Lkotlin/jvm/functions/Function1;Lkotlin/jvm/internal/DefaultConstructorMarker;)V
public fun close (Lkotlin/coroutines/Continuation;)Ljava/lang/Object;
public final fun getProtocolVersion ()Ljava/lang/String;
public final fun getSessionId ()Ljava/lang/String;
public final fun send (Lio/modelcontextprotocol/kotlin/sdk/JSONRPCMessage;Ljava/lang/String;Lkotlin/jvm/functions/Function1;Lkotlin/coroutines/Continuation;)Ljava/lang/Object;
public fun send (Lio/modelcontextprotocol/kotlin/sdk/JSONRPCMessage;Lkotlin/coroutines/Continuation;)Ljava/lang/Object;
public static synthetic fun send$default (Lio/modelcontextprotocol/kotlin/sdk/client/StreamableHttpClientTransport;Lio/modelcontextprotocol/kotlin/sdk/JSONRPCMessage;Ljava/lang/String;Lkotlin/jvm/functions/Function1;Lkotlin/coroutines/Continuation;ILjava/lang/Object;)Ljava/lang/Object;
public final fun setProtocolVersion (Ljava/lang/String;)V
public fun start (Lkotlin/coroutines/Continuation;)Ljava/lang/Object;
public final fun terminateSession (Lkotlin/coroutines/Continuation;)Ljava/lang/Object;
}
public final class io/modelcontextprotocol/kotlin/sdk/client/StreamableHttpError : java/lang/Exception {
public fun <init> ()V
public fun <init> (Ljava/lang/Integer;Ljava/lang/String;)V
public synthetic fun <init> (Ljava/lang/Integer;Ljava/lang/String;ILkotlin/jvm/internal/DefaultConstructorMarker;)V
public final fun getCode ()Ljava/lang/Integer;
}
public final class io/modelcontextprotocol/kotlin/sdk/client/StreamableHttpMcpKtorClientExtensionsKt {
public static final fun mcpStreamableHttp-BZiP2OM (Lio/ktor/client/HttpClient;Ljava/lang/String;Lkotlin/time/Duration;Lkotlin/jvm/functions/Function1;Lkotlin/coroutines/Continuation;)Ljava/lang/Object;
public static synthetic fun mcpStreamableHttp-BZiP2OM$default (Lio/ktor/client/HttpClient;Ljava/lang/String;Lkotlin/time/Duration;Lkotlin/jvm/functions/Function1;Lkotlin/coroutines/Continuation;ILjava/lang/Object;)Ljava/lang/Object;
public static final fun mcpStreamableHttpTransport-5_5nbZA (Lio/ktor/client/HttpClient;Ljava/lang/String;Lkotlin/time/Duration;Lkotlin/jvm/functions/Function1;)Lio/modelcontextprotocol/kotlin/sdk/client/StreamableHttpClientTransport;
public static synthetic fun mcpStreamableHttpTransport-5_5nbZA$default (Lio/ktor/client/HttpClient;Ljava/lang/String;Lkotlin/time/Duration;Lkotlin/jvm/functions/Function1;ILjava/lang/Object;)Lio/modelcontextprotocol/kotlin/sdk/client/StreamableHttpClientTransport;
}
public final class io/modelcontextprotocol/kotlin/sdk/client/WebSocketClientTransport : io/modelcontextprotocol/kotlin/sdk/shared/WebSocketMcpTransport {
public fun <init> (Lio/ktor/client/HttpClient;Ljava/lang/String;Lkotlin/jvm/functions/Function1;)V
public synthetic fun <init> (Lio/ktor/client/HttpClient;Ljava/lang/String;Lkotlin/jvm/functions/Function1;ILkotlin/jvm/internal/DefaultConstructorMarker;)V