89a684546b* fix(examples): resolve DIST_DIR path for npm package execution When servers are compiled to dist/server.js and published to npm, `import.meta.dirname` already points to dist/, so joining with "dist" results in dist/dist/ which doesn't exist. This fix detects whether we're running from TypeScript source or compiled JavaScript and adjusts the path accordingly: - From source (server.ts): use dist/ subdirectory - From compiled (dist/server.js): use current directory Fixes ENOENT errors like: "ENOENT: no such file or directory, open '.../dist/dist/mcp-app.html'" 🤖 Generated with [Claude Code](https://claude.com/claude-code) Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com> * fix(pdf-server): mark pdfjs-dist as external in bundle The pdf.worker.mjs file wasn't being found when running from npm because bun bundled pdfjs-dist but didn't include the worker file. By marking pdfjs-dist as external, it uses the installed package from node_modules at runtime where the worker is available. 🤖 Generated with [Claude Code](https://claude.com/claude-code) Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com> --------- Co-authored-by: Claude Opus 4.5 <noreply@anthropic.com>
57 lines
1.9 KiB
TypeScript
57 lines
1.9 KiB
TypeScript
import { McpServer } from "@modelcontextprotocol/sdk/server/mcp.js";
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import type { CallToolResult, ReadResourceResult } from "@modelcontextprotocol/sdk/types.js";
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import fs from "node:fs/promises";
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import path from "node:path";
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import { registerAppTool, registerAppResource, RESOURCE_MIME_TYPE } from "@modelcontextprotocol/ext-apps/server";
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// Works both from source (server.ts) and compiled (dist/server.js)
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const DIST_DIR = import.meta.filename.endsWith(".ts")
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? path.join(import.meta.dirname, "dist")
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: import.meta.dirname;
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/**
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* Creates a new MCP server instance with tools and resources registered.
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*/
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export function createServer(): McpServer {
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const server = new McpServer({
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name: "Basic MCP App Server (Preact)",
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version: "1.0.0",
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});
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// Two-part registration: tool + resource, tied together by the resource URI.
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const resourceUri = "ui://get-time/mcp-app.html";
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// Register a tool with UI metadata. When the host calls this tool, it reads
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// `_meta.ui.resourceUri` to know which resource to fetch and render as an
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// interactive UI.
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registerAppTool(server,
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"get-time",
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{
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title: "Get Time",
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description: "Returns the current server time as an ISO 8601 string.",
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inputSchema: {},
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_meta: { ui: { resourceUri } },
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},
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async (): Promise<CallToolResult> => {
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const time = new Date().toISOString();
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return { content: [{ type: "text", text: time }] };
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},
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);
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// Register the resource, which returns the bundled HTML/JavaScript for the UI.
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registerAppResource(server,
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resourceUri,
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resourceUri,
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{ mimeType: RESOURCE_MIME_TYPE },
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async (): Promise<ReadResourceResult> => {
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const html = await fs.readFile(path.join(DIST_DIR, "mcp-app.html"), "utf-8");
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return {
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contents: [
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{ uri: resourceUri, mimeType: RESOURCE_MIME_TYPE, text: html },
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],
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};
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},
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);
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return server;
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}
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