From a5ff8253a42339dac2768e2d42d3e3744d91df8c Mon Sep 17 00:00:00 2001 From: Danny Avila Date: Tue, 13 May 2025 13:26:37 -0400 Subject: [PATCH] =?UTF-8?q?=F0=9F=8E=8F=20feat:=20Add=20MCP=20support=20fo?= =?UTF-8?q?r=20Streamable=20HTTP=20Transport=20[2/2]=20(#7353)?= MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit - fixes type/packages issues not resolved in #7353 --- package-lock.json | 560 +++++++++++++++++---------------- packages/mcp/src/connection.ts | 17 +- 2 files changed, 301 insertions(+), 276 deletions(-) diff --git a/package-lock.json b/package-lock.json index 39f4b7b27a..a5accf491e 100644 --- a/package-lock.json +++ b/package-lock.json @@ -18042,6 +18042,293 @@ "zod": ">= 3" } }, + "node_modules/@modelcontextprotocol/sdk": { + "version": "1.11.2", + "resolved": "https://registry.npmjs.org/@modelcontextprotocol/sdk/-/sdk-1.11.2.tgz", + "integrity": 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a/packages/mcp/src/connection.ts b/packages/mcp/src/connection.ts index c2729a6d77..23b7062dd1 100644 --- a/packages/mcp/src/connection.ts +++ b/packages/mcp/src/connection.ts @@ -9,6 +9,7 @@ import { WebSocketClientTransport } from '@modelcontextprotocol/sdk/client/webso import { ResourceListChangedNotificationSchema } from '@modelcontextprotocol/sdk/types.js'; import { StreamableHTTPClientTransport } from '@modelcontextprotocol/sdk/client/streamableHttp.js'; import type { Transport } from '@modelcontextprotocol/sdk/shared/transport.js'; +import type { JSONRPCMessage } from '@modelcontextprotocol/sdk/types.js'; import type { Logger } from 'winston'; import type * as t from './types/mcp.js'; @@ -34,11 +35,11 @@ function isSSEOptions(options: t.MCPOptions): options is t.SSEOptions { /** * Checks if the provided options are for a Streamable HTTP transport. - * + * * Streamable HTTP is an MCP transport that uses HTTP POST for sending messages * and supports streaming responses. It provides better performance than * SSE transport while maintaining compatibility with most network environments. - * + * * @param options MCP connection options to check * @returns True if options are for a streamable HTTP transport */ @@ -216,9 +217,11 @@ export class MCPConnection extends EventEmitter { throw new Error('Invalid options for streamable-http transport.'); } const url = new URL(options.url); - this.logger?.info(`${this.getLogPrefix()} Creating streamable-http transport: ${url.toString()}`); + this.logger?.info( + `${this.getLogPrefix()} Creating streamable-http transport: ${url.toString()}`, + ); const abortController = new AbortController(); - + const transport = new StreamableHTTPClientTransport(url, { requestInit: { headers: options.headers, @@ -231,17 +234,17 @@ export class MCPConnection extends EventEmitter { this.emit('connectionChange', 'disconnected'); }; - transport.onerror = (error) => { + transport.onerror = (error: Error | unknown) => { this.logger?.error(`${this.getLogPrefix()} Streamable-http transport error:`, error); this.emitError(error, 'Streamable-http transport error:'); }; - transport.onmessage = (message) => { + transport.onmessage = (message: JSONRPCMessage) => { this.logger?.info( `${this.getLogPrefix()} Message received: ${JSON.stringify(message)}`, ); }; - + this.setupTransportErrorHandlers(transport); return transport; }