fix:http-server/handlePostMessage (#273)

* fix:http-server/handlePostMessage

* feat: add changeset with patch release

* Create soft-papayas-hear.md

* Delete .changeset/angry-ideas-marry.md

---------

Co-authored-by: carson <104383295+codebycarson@users.noreply.github.com>

Author: mr-shreyansh

.changeset/soft-papayas-hear.md

@@ -0,0 +1,7 @@
+---
+"@sei-js/mcp-server": patch
+---
+
+fix:http-server/handlePostMessage
+
+https://github.com/modelcontextprotocol/typescript-sdk/issues/187#issuecomment-2765284408

packages/mcp-server/src/server/http-server.ts

@@ -145,7 +145,7 @@ app.post('/messages', (req: Request, res: Response) => {
 
 	console.error(`Handling message for session: ${sessionId}`);
 	try {
-		transport.handlePostMessage(req, res).catch((error: Error) => {
+		transport.handlePostMessage(req, res, req.body).catch((error: Error) => {
 			console.error(`Error handling post message: ${error}`);
 			res.status(500).json({ error: `Internal server error: ${error.message}` });
 		});