Add GET handler to /api/predict for better error messages

app.py

@@ -89,8 +89,22 @@ def api_docs():
     return render_template('api_docs.html', routes=routes, base_url=base_url)
 
 
-@app.route('/api/predict', methods=['POST'])
+@app.route('/api/predict', methods=['POST', 'GET'])
 def predict():
+    # Handle GET requests with info message
+    if request.method == 'GET':
+        return jsonify({
+            'status': 'info',
+            'message': 'This endpoint accepts POST requests only. Please use POST method with a PDF file in the "file" field.',
+            'usage': {
+                'method': 'POST',
+                'content_type': 'multipart/form-data',
+                'body': {
+                    'file': 'PDF file to process'
+                },
+                'example_curl': 'curl -X POST https://saifisvibin-volaris-pdf-tool.hf.space/api/predict -F "file=@document.pdf"'
+            }
+        }), 405
     """
     Clean REST API endpoint for PDF extraction.
     Accepts a PDF file and returns extracted text, tables, and figures.