add building for examples, add node 20 in main.yml

Author: KKonstantinov

.github/workflows/main.yml

@@ -38,7 +38,7 @@ jobs:
         strategy:
             fail-fast: false
             matrix:
-                node-version: [22, 24]
+                node-version: [20, 22, 24]
 
         steps:
             - uses: actions/checkout@v6

examples/client/package.json

@@ -23,6 +23,8 @@
     ],
     "scripts": {
         "typecheck": "tsc -p tsconfig.json --noEmit",
+        "build": "tsdown",
+        "build:watch": "tsdown --watch",
         "prepack": "npm run build:esm && npm run build:cjs",
         "lint": "eslint src/ && prettier --ignore-path ../../.prettierignore --check .",
         "lint:fix": "eslint src/ --fix && prettier --ignore-path ../../.prettierignore --write .",
@@ -40,6 +42,7 @@
         "@modelcontextprotocol/sdk-examples-shared": "workspace:^",
         "@modelcontextprotocol/tsconfig": "workspace:^",
         "@modelcontextprotocol/eslint-config": "workspace:^",
-        "@modelcontextprotocol/vitest-config": "workspace:^"
+        "@modelcontextprotocol/vitest-config": "workspace:^",
+        "tsdown": "catalog:devTools"
     }
 }

examples/client/tsdown.config.ts

@@ -0,0 +1,25 @@
+import { defineConfig } from 'tsdown';
+
+export default defineConfig({
+    // 1. Entry Points
+    //    Directly matches package.json include/exclude globs
+    entry: ['src/**/*.ts'],
+
+    // 2. Output Configuration
+    format: ['esm'],
+    outDir: 'dist',
+    clean: true, // Recommended: Cleans 'dist' before building
+    sourcemap: true,
+
+    // 3. Platform & Target
+    target: 'esnext',
+    platform: 'node',
+    shims: true, // Polyfills common Node.js shims (__dirname, etc.)
+
+    // 4. Type Definitions
+    //    Bundles d.ts files into a single output
+    dts: false,
+    // 5. Vendoring Strategy - Bundle the code for this specific package into the output,
+    //    but treat all other dependencies as external (require/import).
+    noExternal: ['@modelcontextprotocol/sdk-examples-shared']
+});

examples/server/package.json

@@ -23,6 +23,8 @@
     ],
     "scripts": {
         "typecheck": "tsc -p tsconfig.json --noEmit",
+        "build": "tsdown",
+        "build:watch": "tsdown --watch",
         "prepack": "npm run build:esm && npm run build:cjs",
         "lint": "eslint src/ && prettier --ignore-path ../../.prettierignore --check .",
         "lint:fix": "eslint src/ --fix && prettier --ignore-path ../../.prettierignore --write .",
@@ -45,6 +47,7 @@
         "@modelcontextprotocol/tsconfig": "workspace:^",
         "@modelcontextprotocol/vitest-config": "workspace:^",
         "@types/cors": "catalog:devTools",
-        "@types/express": "catalog:devTools"
+        "@types/express": "catalog:devTools",
+        "tsdown": "catalog:devTools"
     }
 }

examples/server/tsdown.config.ts

@@ -0,0 +1,25 @@
+import { defineConfig } from 'tsdown';
+
+export default defineConfig({
+    // 1. Entry Points
+    //    Directly matches package.json include/exclude globs
+    entry: ['src/**/*.ts'],
+
+    // 2. Output Configuration
+    format: ['esm'],
+    outDir: 'dist',
+    clean: true, // Recommended: Cleans 'dist' before building
+    sourcemap: true,
+
+    // 3. Platform & Target
+    target: 'esnext',
+    platform: 'node',
+    shims: true, // Polyfills common Node.js shims (__dirname, etc.)
+
+    // 4. Type Definitions
+    //    Bundles d.ts files into a single output
+    dts: false,
+    // 5. Vendoring Strategy - Bundle the code for this specific package into the output,
+    //    but treat all other dependencies as external (require/import).
+    noExternal: ['@modelcontextprotocol/sdk-examples-shared']
+});