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vscode / server.js

Create server.js

931fb4a verified 9 months ago

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import { McpServer } from "@modelcontextprotocol/sdk/server/mcp.js";
import { StdioServerTransport } from "@modelcontextprotocol/sdk/server/stdio.js";
import { chromium } from "playwright";

// Or use SSE transport for HTTP-based MCP on HF Spaces
import express from "express";
import { SSEServerTransport } from "@modelcontextprotocol/sdk/server/sse.js";

const app = express();
const server = new McpServer({ name: "playwright-mcp", version: "1.0.0" });

// Register a tool example
server.tool("navigate", { url: { type: "string" } }, async ({ url }) => {
  const browser = await chromium.launch({
    headless: true,
    args: [
      "--no-sandbox",           // Required in containers
      "--disable-setuid-sandbox",
      "--disable-dev-shm-usage", // Prevents /dev/shm OOM crashes
      "--disable-gpu",
      "--single-process",
    ],
  });
  const page = await browser.newPage();
  await page.goto(url);
  const title = await page.title();
  await browser.close();
  return { content: [{ type: "text", text: `Title: ${title}` }] };
});

// SSE endpoint for MCP over HTTP
app.get("/sse", async (req, res) => {
  const transport = new SSEServerTransport("/message", res);
  await server.connect(transport);
});

app.post("/message", express.json(), async (req, res) => {
  // handle message
});

app.listen(process.env.PORT || 7860, () => {
  console.log(`MCP server running on port ${process.env.PORT}`);
});

	import { McpServer } from "@modelcontextprotocol/sdk/server/mcp.js";
	import { StdioServerTransport } from "@modelcontextprotocol/sdk/server/stdio.js";
	import { chromium } from "playwright";

	// Or use SSE transport for HTTP-based MCP on HF Spaces
	import express from "express";
	import { SSEServerTransport } from "@modelcontextprotocol/sdk/server/sse.js";

	const app = express();
	const server = new McpServer({ name: "playwright-mcp", version: "1.0.0" });

	// Register a tool example
	server.tool("navigate", { url: { type: "string" } }, async ({ url }) => {
	const browser = await chromium.launch({
	headless: true,
	args: [
	"--no-sandbox", // Required in containers
	"--disable-setuid-sandbox",
	"--disable-dev-shm-usage", // Prevents /dev/shm OOM crashes
	"--disable-gpu",
	"--single-process",
	],
	});
	const page = await browser.newPage();
	await page.goto(url);
	const title = await page.title();
	await browser.close();
	return { content: [{ type: "text", text: `Title: ${title}` }] };
	});

	// SSE endpoint for MCP over HTTP
	app.get("/sse", async (req, res) => {
	const transport = new SSEServerTransport("/message", res);
	await server.connect(transport);
	});

	app.post("/message", express.json(), async (req, res) => {
	// handle message
	});

	app.listen(process.env.PORT \|\| 7860, () => {
	console.log(`MCP server running on port ${process.env.PORT}`);
	});