Reactive-Resume/src/routes/mcp/index.ts

import { McpServer } from "@modelcontextprotocol/sdk/server/mcp.js";
import { WebStandardStreamableHTTPServerTransport } from "@modelcontextprotocol/sdk/server/webStandardStreamableHttp.js";
import { createFileRoute } from "@tanstack/react-router";

import { logger } from "@/utils/logger";

import { registerPrompts } from "./-helpers/prompts";
import { registerResources } from "./-helpers/resources";
import { registerTools } from "./-helpers/tools";

function createMcpServer() {
  const server = new McpServer({
    name: "reactive-resume",
    version: "1.0.0",
    title: "Reactive Resume",
    websiteUrl: "https://rxresu.me",
    description:
      "Reactive Resume is a free and open-source resume builder. Use this MCP server to interact with your resume using an LLM of your choice.",
    icons: [
      {
        src: "https://rxresu.me/icon/light.svg",
        mimeType: "image/svg+xml",
        theme: "light",
      },
      {
        src: "https://rxresu.me/icon/dark.svg",
        mimeType: "image/svg+xml",
        theme: "dark",
      },
    ],
  });

  registerResources(server);
  registerTools(server);
  registerPrompts(server);

  return server;
}

export const Route = createFileRoute("/mcp/")({
  server: {
    handlers: {
      ANY: async ({ request }) => {
        try {
          const apiKey = request.headers.get("x-api-key");
          if (!apiKey) throw new Error("Unauthorized");

          const server = createMcpServer();
          const transport = new WebStandardStreamableHTTPServerTransport({
            enableJsonResponse: true,
          });

          await server.connect(transport);

          return await transport.handleRequest(request);
        } catch (error) {
          logger.error({ err: error, route: "/mcp" }, "MCP request failed");

          return Response.json({
            id: null,
            jsonrpc: "2.0",
            error: {
              code: -32603,
              message: `Error handling request: ${error instanceof Error ? error.message : String(error)}`,
            },
          });
        }
      },
    },
  },
});