chore(examples): add local file input example (#88)

Author: dkundel-openai

examples/basic/local-file.ts

@@ -0,0 +1,47 @@
+import fs from 'node:fs';
+import path from 'node:path';
+import { Agent, run } from '@openai/agents';
+
+const filePath = path.join(
+  __dirname,
+  'media/partial_o3-and-o4-mini-system-card.pdf',
+);
+
+function fileToBase64(filePath: string): string {
+  const fileBuffer = fs.readFileSync(filePath);
+  return fileBuffer.toString('base64');
+}
+
+async function main() {
+  const agent = new Agent({
+    name: 'Assistant',
+    instructions: 'You are a helpful assistant.',
+  });
+
+  const b64File = fileToBase64(filePath);
+  const result = await run(agent, [
+    {
+      role: 'user',
+      content: [
+        {
+          type: 'input_file',
+          file: `data:application/pdf;base64,${b64File}`,
+          providerData: {
+            filename: 'partial_o3-and-o4-mini-system-card.pdf',
+          },
+        },
+      ],
+    },
+    {
+      role: 'user',
+      content: 'What is the first sentence of the introduction?',
+    },
+  ]);
+
+  console.log(result.finalOutput);
+  // OpenAI o3 and OpenAI o4-mini combine state-of-the-art reasoning with full tool capabilities — web browsing, Python, image and file analysis, image generation, canvas, automations, file search, and memory.
+}
+
+if (require.main === module) {
+  main().catch(console.error);
+}

examples/basic/media/partial_o3-and-o4-mini-system-card.pdf

@@ -21,6 +21,7 @@
     "start:json-schema-output-type": "tsx json-schema-output-type.ts",
     "start:tool-use-behavior": "tsx tool-use-behavior.ts",
     "start:tools": "tsx tools.ts",
-    "start:reasoning": "tsx reasoning.ts"
+    "start:reasoning": "tsx reasoning.ts",
+    "start:local-file": "tsx local-file.ts"
   }
 }