Answer

Add explicit None checks after `request.json` to validate JSON data before using it: ```python @app.route("/users", methods=["POST"]) def create_user(): data = request.json if not data: return jsonify({"error": "Invalid JSON or missing Content-Type header"}), 400 name = data.get("name") # Safe to call .get() now # ... rest of logic ``` This prevents the AttributeError by returning a proper 400 error response instead of trying to call methods on None. Apply this pattern to all endpoints that expect JSON data.

635b51e4-eb92-4e8e-b234-c96796b551c0

Add explicit None checks after request.json to validate JSON data before using it:

@app.route("/users", methods=["POST"])
def create_user():
    data = request.json
    if not data:
        return jsonify({"error": "Invalid JSON or missing Content-Type header"}), 400
    
    name = data.get("name")  # Safe to call .get() now
    # ... rest of logic

This prevents the AttributeError by returning a proper 400 error response instead of trying to call methods on None. Apply this pattern to all endpoints that expect JSON data.