Method handleRequest

actions/setup/js/mcp_http_transport.cjs:157–311

* Handle an incoming HTTP request * @param {http.IncomingMessage} req - HTTP request * @param {http.ServerResponse} res - HTTP response * @param {Object} [parsedBody] - Pre-parsed request body

(req, res, parsedBody)

   * @param {Object} [parsedBody] - Pre-parsed request body
   */
  async handleRequest(req, res, parsedBody) {
    // Set CORS headers
    res.setHeader("Access-Control-Allow-Origin", "*");
    res.setHeader("Access-Control-Allow-Methods", "GET, POST, OPTIONS");
    res.setHeader("Access-Control-Allow-Headers", "Content-Type, Accept, Mcp-Session-Id");

    // Handle OPTIONS preflight
    if (req.method === "OPTIONS") {
      res.writeHead(200);
      res.end();
      return;
    }

    // Only handle POST requests for MCP protocol
    if (req.method !== "POST") {
      res.writeHead(405, { "Content-Type": "application/json" });
      res.end(JSON.stringify({ error: "Method not allowed" }));
      return;
    }

    try {
      // Parse request body if not already parsed
      let body = parsedBody;
      if (!body) {
        const chunks = [];
        for await (const chunk of req) {
          chunks.push(chunk);
        }
        const bodyStr = Buffer.concat(chunks).toString();
        try {
          body = bodyStr ? JSON.parse(bodyStr) : null;
        } catch (parseError) {
          res.writeHead(400, { "Content-Type": "application/json" });
          res.end(
            JSON.stringify({
              jsonrpc: "2.0",
              error: {
                code: -32700,
                message: "Parse error: Invalid JSON in request body",
              },
              id: null,
            })
          );
          return;
        }
      }

      if (!body) {
        res.writeHead(400, { "Content-Type": "application/json" });
        res.end(
          JSON.stringify({
            jsonrpc: "2.0",
            error: {
              code: -32600,
              message: "Invalid Request: Empty request body",
            },
            id: null,
          })