From 945c26d9e2bdb9814819a3efe35d5ea8082a96a3 Mon Sep 17 00:00:00 2001
From: jkma <jkma@trip.com>
Date: Tue, 1 Jul 2025 19:24:03 +0800
Subject: [PATCH] feat: Add error logging for HttpClientSseClientTransport

---
 .../client/transport/HttpClientSseClientTransport.java        | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/mcp/src/main/java/io/modelcontextprotocol/client/transport/HttpClientSseClientTransport.java b/mcp/src/main/java/io/modelcontextprotocol/client/transport/HttpClientSseClientTransport.java
index d951349d..ab7c30d7 100644
--- a/mcp/src/main/java/io/modelcontextprotocol/client/transport/HttpClientSseClientTransport.java
+++ b/mcp/src/main/java/io/modelcontextprotocol/client/transport/HttpClientSseClientTransport.java
@@ -421,10 +421,10 @@ public Mono<Void> sendMessage(JSONRPCMessage message) {
 				.build();
 
 			return Mono.fromFuture(
-					httpClient.sendAsync(request, HttpResponse.BodyHandlers.discarding()).thenAccept(response -> {
+					httpClient.sendAsync(request, HttpResponse.BodyHandlers.ofString()).thenAccept(response -> {
 						if (response.statusCode() != 200 && response.statusCode() != 201 && response.statusCode() != 202
 								&& response.statusCode() != 206) {
-							logger.error("Error sending message: {}", response.statusCode());
+							logger.error("Error sending message, code: {}, body: {}", response.statusCode(), response.body());
 						}
 					}));
 		}