This commit is contained in:
bipproduction
2025-10-26 22:01:41 +08:00
parent 842847911b
commit 1ca95cf71b

View File

@@ -1,103 +1,262 @@
// src/routes/mcp_route.ts import { Elysia, t } from "elysia";
import { Elysia } from "elysia"; import { cors } from '@elysiajs/cors';
export const MCPRoute = new Elysia({ export const MCPRoute = new Elysia({
prefix: "/mcp-server", prefix: "/mcp-server",
tags: ["mcp-server"],
}) })
.get("/mcp", ({ set, query }) => { .use(cors())
// n8n akan mengirim method & params lewat query seperti:
// ?method=tools/list atau ?method=tools/sayHello&name=Malik
const id = query.id ?? 1; // ✅ Health check endpoint
const method = query.method as string; .get("/", () => ({
const params = query; status: "ok",
message: "MCP Server is running",
protocol: "2024-11-05",
transport: "sse",
endpoints: {
sse: "/mcp-server/sse",
message: "/mcp-server/message"
}
}))
// ✅ Header wajib agar n8n mau streaming // ✅ SSE endpoint - Server-Sent Events untuk n8n
set.headers["Content-Type"] = "application/json; charset=utf-8"; .get("/sse", ({ set }) => {
set.headers["Cache-Control"] = "no-cache, no-transform"; set.headers = {
set.headers["Connection"] = "keep-alive"; "Content-Type": "text/event-stream",
set.headers["Transfer-Encoding"] = "chunked"; "Cache-Control": "no-cache, no-transform",
set.headers["X-Accel-Buffering"] = "no"; // Untuk Cloudflare & Nginx "Connection": "keep-alive",
"X-Accel-Buffering": "no"
};
const stream = new ReadableStream({ const encoder = new TextEncoder();
async start(controller) { let isClosed = false;
// --- Handle mcp/version ---
if (method === "mcp/version") { const stream = new ReadableStream({
controller.enqueue( start(controller) {
JSON.stringify({ // Send endpoint info immediately
jsonrpc: "2.0", const endpointMsg = {
id, type: "endpoint",
result: { endpoint: "/mcp-server/message"
protocol: "2024-11-05", };
capabilities: {
"tools/list": true, try {
"tools/call": true, controller.enqueue(
}, encoder.encode(`data: ${JSON.stringify(endpointMsg)}\n\n`)
}, );
}) + "\n" } catch (e) {
); console.error("Failed to send endpoint message:", e);
return; // Tidak ditutup → tetap open }
}
// Keep connection alive with heartbeat
const heartbeat = setInterval(() => {
if (isClosed) {
clearInterval(heartbeat);
return;
}
try {
controller.enqueue(encoder.encode(`: heartbeat\n\n`));
} catch (e) {
console.error("Heartbeat failed:", e);
clearInterval(heartbeat);
isClosed = true;
try {
controller.close();
} catch (closeErr) {
// Already closed
}
}
}, 15000); // Every 15 seconds
// Cleanup on connection close
return () => {
isClosed = true;
clearInterval(heartbeat);
};
}
});
return new Response(stream);
})
// --- Handle tools/list --- // ✅ Message endpoint - untuk JSON-RPC messages
if (method === "tools/list") { .post("/message", async ({ body, set }) => {
controller.enqueue( set.headers["Content-Type"] = "application/json";
JSON.stringify({
jsonrpc: "2.0", const { jsonrpc, id, method, params } = body as any;
id,
result: [ try {
{ // Initialize
name: "sayHello", if (method === "initialize") {
description: "Greets a user", return {
inputSchema: { jsonrpc: "2.0",
type: "object", id,
properties: { result: {
name: { type: "string", description: "Your name" }, protocolVersion: "2024-11-05",
}, capabilities: {
}, tools: {}
}, },
], serverInfo: {
}) + "\n" name: "tentang-darmasaba-mcp",
); version: "1.0.0"
return; }
} }
};
}
// --- Handle tools/sayHello (progress streaming) --- // Ping
if (method === "tools/sayHello") { if (method === "ping") {
controller.enqueue( return {
JSON.stringify({ jsonrpc: "2.0",
jsonrpc: "2.0", id,
id, result: {}
result: { status: "Processing..." }, };
}) + "\n" }
);
await Bun.sleep(500);
controller.enqueue( // List tools
JSON.stringify({ if (method === "tools/list") {
jsonrpc: "2.0", return {
id, jsonrpc: "2.0",
result: { message: `Hello ${params?.name || "User"}` }, id,
}) + "\n" result: {
); tools: [
return; {
} name: "sayHello",
description: "Greets user with a personalized message",
// --- Jika method tidak dikenal --- inputSchema: {
controller.enqueue( type: "object",
JSON.stringify({ properties: {
jsonrpc: "2.0", name: {
id, type: "string",
error: { description: "Name of the person to greet"
code: -32601, }
message: `Method "${method}" not found`, },
}, required: ["name"]
}) + "\n" }
);
}, },
}); {
name: "getCurrentTime",
description: "Returns current server time",
inputSchema: {
type: "object",
properties: {}
}
},
{
name: "getTentangDarmasaba",
description: "Get information about Tentang Darmasaba platform",
inputSchema: {
type: "object",
properties: {
section: {
type: "string",
description: "Specific section to get info about",
enum: ["about", "features", "contact"]
}
}
}
}
]
}
};
}
return new Response(stream); // Call tool
}); if (method === "tools/call") {
const toolName = params?.name;
const args = params?.arguments || {};
export default MCPRoute; if (toolName === "sayHello") {
return {
jsonrpc: "2.0",
id,
result: {
content: [
{
type: "text",
text: `Hello ${args.name || "there"}! 👋 Welcome to Tentang Darmasaba MCP Server!`
}
]
}
};
}
if (toolName === "getCurrentTime") {
return {
jsonrpc: "2.0",
id,
result: {
content: [
{
type: "text",
text: `Current server time: ${new Date().toISOString()}`
}
]
}
};
}
if (toolName === "getTentangDarmasaba") {
const section = args.section || "about";
const info: Record<string, string> = {
about: "Tentang Darmasaba adalah platform pembelajaran dan kolaborasi.",
features: "Fitur: MCP Server integration, Real-time collaboration, API tools",
contact: "Contact: support@tentangdarmasaba.com"
};
return {
jsonrpc: "2.0",
id,
result: {
content: [
{
type: "text",
text: info[section] || info.about
}
]
}
};
}
// Tool not found
return {
jsonrpc: "2.0",
id,
error: {
code: -32602,
message: `Unknown tool: ${toolName}`
}
};
}
// Method not found
return {
jsonrpc: "2.0",
id,
error: {
code: -32601,
message: `Unknown method: ${method}`
}
};
} catch (error: any) {
console.error("MCP Error:", error);
return {
jsonrpc: "2.0",
id,
error: {
code: -32603,
message: `Internal error: ${error.message}`
}
};
}
}, {
body: t.Object({
jsonrpc: t.String(),
method: t.String(),
params: t.Optional(t.Any()),
id: t.Union([t.String(), t.Number()]),
})
});
export default MCPRoute;