Update backend.py

backend.py

@@ -1,29 +1,35 @@
-from flask import Flask, request, jsonify
-import subprocess
-
-app = Flask(__name__)
-
-@app.route("/run", methods=["POST"])
-def run_code():
-    try:
-        code = request.json.get("code", "")
-
-        if not code:
-            return jsonify({"output": "No code provided!"}), 400
-
-        # Run Python code in a subprocess
-        process = subprocess.run(
-            ["python", "-c", code],
-            capture_output=True,
-            text=True
-        )
-
-        output = process.stdout if process.stdout else process.stderr
-        return jsonify({"output": output})
-
-    except Exception as e:
-        return jsonify({"output": f"Error: {str(e)}"}), 500
-
-
-if __name__ == "__main__":
-    app.run(debug=True, port=5000)
+from flask import Flask, request, jsonify
+import subprocess
+
+app = Flask(__name__)
+
+@app.route("/run", methods=["POST"])
+def run_code():
+    try:
+        # Ensure request contains JSON data
+        if not request.is_json:
+            return jsonify({"output": "Invalid request. Expecting JSON format."}), 400
+
+        data = request.get_json()
+        code = data.get("code", "")
+
+        if not code.strip():
+            return jsonify({"output": "No code provided!"}), 400
+
+        # Run Python code in a subprocess
+        process = subprocess.run(
+            ["python", "-c", code],
+            capture_output=True,
+            text=True
+        )
+
+        output = process.stdout.strip() if process.stdout else process.stderr.strip()
+
+        return jsonify({"output": output})
+
+    except Exception as e:
+        return jsonify({"output": f"Error: {str(e)}"}), 500
+
+
+if __name__ == "__main__":
+    app.run(host="0.0.0.0", port=5000, debug=True)