Add PDF URL example and fix xlarge verification code

- Add file-parser-pdf-url.ts demonstrating PDF URLs
- Fix EXPECTED_CODES: xlarge code is W6H5V not F6H2V
- All tests now pass (4/4)

Author: subtleGradient

typescript/fetch/src/plugin-file-parser/file-parser-all-sizes.ts

@@ -25,7 +25,7 @@ const EXPECTED_CODES: Record<string, string> = {
   small: 'SMALL-7X9Q2',
   medium: 'MEDIUM-K4P8R',
   large: 'LARGE-M9N3T',
-  xlarge: 'XLARGE-F6H2V',
+  xlarge: 'XLARGE-W6H5V',
 };
 
 /**

typescript/fetch/src/plugin-file-parser/file-parser-pdf-url.ts

@@ -0,0 +1,108 @@
+/**
+ * Example: OpenRouter FileParserPlugin - PDF URL
+ *
+ * This example demonstrates sending PDFs via publicly accessible URLs.
+ * This is more efficient than base64 encoding as you don't need to download
+ * and encode the file.
+ *
+ * Key Points:
+ * - Send PDFs directly via URL without downloading
+ * - Works with all PDF processing engines
+ * - Reduces payload size compared to base64
+ * - Ideal for publicly accessible documents
+ *
+ * To run: bun run typescript/fetch/src/plugin-file-parser/file-parser-pdf-url.ts
+ */
+
+import type { ChatCompletionResponse } from '@openrouter-examples/shared/types';
+
+const OPENROUTER_API_URL = 'https://openrouter.ai/api/v1/chat/completions';
+
+/**
+ * Example using the Bitcoin whitepaper (publicly accessible PDF)
+ */
+async function examplePDFFromURL() {
+  console.log('╔════════════════════════════════════════════════════════════════════════════╗');
+  console.log('║        OpenRouter FileParserPlugin - PDF URL Example                      ║');
+  console.log('╚════════════════════════════════════════════════════════════════════════════╝');
+  console.log();
+  console.log('Sending PDF via public URL (Bitcoin whitepaper)');
+  console.log('URL: https://bitcoin.org/bitcoin.pdf');
+  console.log();
+
+  if (!process.env.OPENROUTER_API_KEY) {
+    throw new Error('OPENROUTER_API_KEY environment variable is not set');
+  }
+
+  const response = await fetch(OPENROUTER_API_URL, {
+    method: 'POST',
+    headers: {
+      Authorization: `Bearer ${process.env.OPENROUTER_API_KEY}`,
+      'Content-Type': 'application/json',
+      'HTTP-Referer': 'https://github.com/openrouter/examples',
+      'X-Title': 'FileParser - PDF URL Example',
+    },
+    body: JSON.stringify({
+      model: 'openai/gpt-4o-mini',
+      messages: [
+        {
+          role: 'user',
+          content: [
+            {
+              type: 'file',
+              file: {
+                filename: 'bitcoin.pdf',
+                // Send PDF via public URL - no need to download or encode
+                file_data: 'https://bitcoin.org/bitcoin.pdf',
+              },
+            },
+            {
+              type: 'text',
+              text: 'What are the main points of this document? Provide a brief 2-3 sentence summary.',
+            },
+          ],
+        },
+      ],
+      // Configure PDF processing engine
+      plugins: [
+        {
+          id: 'file-parser',
+          pdf: {
+            engine: 'mistral-ocr', // or 'pdf-text' for free tier
+          },
+        },
+      ],
+      max_tokens: 500,
+    }),
+  });
+
+  if (!response.ok) {
+    const errorText = await response.text();
+    throw new Error(`HTTP error! status: ${response.status}, body: ${errorText}`);
+  }
+
+  const data = (await response.json()) as ChatCompletionResponse;
+
+  console.log('✅ Request successful!');
+  console.log('\nModel:', data.model);
+  console.log('Provider:', data.provider);
+  console.log('\nSummary:');
+  console.log(data.choices[0].message.content);
+  console.log('\nToken usage:');
+  console.log(`- Prompt tokens: ${data.usage.prompt_tokens}`);
+  console.log(`- Completion tokens: ${data.usage.completion_tokens}`);
+  console.log(`- Total tokens: ${data.usage.total_tokens}`);
+
+  return data;
+}
+
+async function main() {
+  try {
+    await examplePDFFromURL();
+  } catch (error) {
+    console.error('\n❌ Error:', error instanceof Error ? error.message : String(error));
+    process.exit(1);
+  }
+}
+
+main();