Update app.py

app.py

@@ -109,26 +109,34 @@ def answer_with_generation(index, embeddings, chunks, question):
     return answer.strip()
 
 # ✅ API route
+@app.route('/')
+def home():
+    return jsonify({"message": "PDF QA API is running!"})
+
 @app.route('/ask', methods=['POST'])
 def ask():
     file = request.files.get("pdf")
     question = request.form.get("question", "")
 
     if not file or not question:
-        return jsonify({"error": "PDF and question required"}), 400
+        return jsonify({"error": "Both PDF file and question are required"}), 400
 
     filename = secure_filename(file.filename)
     filepath = os.path.join(UPLOAD_FOLDER, filename)
     file.save(filepath)
 
     try:
+        # 🧠 Process PDF and generate answer
         text = extract_text(filepath)
         chunks = split_into_chunks(text)
         answer = answer_with_qa_pipeline(chunks, question)
+
         if len(answer.strip()) < 20:
             index, embeddings, chunks = setup_faiss(chunks)
             answer = answer_with_generation(index, embeddings, chunks, question)
+
         return jsonify({"answer": answer})
+
     except Exception as e:
         return jsonify({"error": str(e)}), 500