route.ts

import {
  CopilotRuntime,
  createCopilotEndpoint,
  InMemoryAgentRunner,
} from "@copilotkit/runtime/v2";
import { LangGraphAgent } from "@copilotkit/runtime/langgraph";
import { handle } from "hono/vercel";

const defaultAgent = new LangGraphAgent({
  deploymentUrl:
    process.env.AGENT_URL ||
    process.env.LANGGRAPH_DEPLOYMENT_URL ||
    "http://localhost:8123",
  graphId: "sample_agent",
  langsmithApiKey: process.env.LANGSMITH_API_KEY || "",
});

const runtime = new CopilotRuntime({
  agents: { default: defaultAgent },
  runner: new InMemoryAgentRunner(),
  openGenerativeUI: true,
  a2ui: {
    injectA2UITool: false,
  },
  mcpApps: {
    servers: [
      {
        type: "http",
        url: process.env.MCP_SERVER_URL || "https://mcp.excalidraw.com",
        serverId: "example_mcp_app",
      },
    ],
  },
});

const app = createCopilotEndpoint({
  runtime,
  basePath: "/api/copilotkit",
});

export const GET = handle(app);
export const POST = handle(app);