import { StreamableHTTPServerTransport } from "@modelcontextprotocol/sdk/server/streamableHttp.js";
import express from "express";
import { logonService, server } from "./utils/server.js";
// ------------------------------------------------------------------------------------------------------------
// process.env["NODE_TLS_REJECT_UNAUTHORIZED"] = "0"; //for testing only, not recommended for production
// ------------------------------------------------------------------------------------------------------------
logonService();
// ------------------------------------------------------------------------------------------------------------
const app = express();
app.use(express.json());
app.post("/mcp", async (req, res) => {
console.log("Received POST MCP request");
try {
const transport = new StreamableHTTPServerTransport({
sessionIdGenerator: undefined,
});
res.on("close", () => {
transport.close();
});
await server.connect(transport);
await transport.handleRequest(req, res, req.body);
} catch (error) {
console.error("Error handling MCP request:", error);
if (!res.headersSent) {
res.status(500).json({
jsonrpc: "2.0",
error: {
code: -32603,
message: "Internal server error",
},
id: null,
});
}
}
});
app.get("/mcp", async (req, res) => {
console.log("Received GET MCP request");
res.writeHead(405).end(
JSON.stringify({
jsonrpc: "2.0",
error: {
code: -32000,
message: "Method not allowed.",
},
id: null,
})
);
});
app.delete("/mcp", async (req, res) => {
console.log("Received DELETE MCP request");
res.writeHead(405).end(
JSON.stringify({
jsonrpc: "2.0",
error: {
code: -32000,
message: "Method not allowed.",
},
id: null,
})
);
});
// Start the server
const PORT = 5000;
app.listen(PORT, () => {
console.log(`ThinkPLC MCP Server port ${PORT}`);
});
