new examples

node/fastify/index.js

@@ -0,0 +1,34 @@
+const fastify = require('fastify')({ logger: true });
+
+const PORT = process.env.PORT || 3000;
+
+// Runtime env vars (read at server startup)
+const RUNTIME_PRIVATE_VAR = process.env.RUNTIME_PRIVATE_VAR || 'default-value';
+const RUNTIME_PUBLIC_VAR = process.env.RUNTIME_PUBLIC_VAR || 'default-value';
+
+console.log('=== Runtime Variables ===');
+console.log('RUNTIME_PRIVATE_VAR:', RUNTIME_PRIVATE_VAR);
+console.log('RUNTIME_PUBLIC_VAR:', RUNTIME_PUBLIC_VAR);
+
+fastify.get('/', async (request, reply) => {
+  return {
+    message: 'Hello from Fastify!',
+    runtimePrivateVar: RUNTIME_PRIVATE_VAR,
+    runtimePublicVar: RUNTIME_PUBLIC_VAR,
+  };
+});
+
+fastify.get('/health', async (request, reply) => {
+  return { status: 'ok' };
+});
+
+const start = async () => {
+  try {
+    await fastify.listen({ port: PORT, host: '0.0.0.0' });
+  } catch (err) {
+    fastify.log.error(err);
+    process.exit(1);
+  }
+};
+
+start();