Your question is Design a Webhook System. Take a moment with it on the right.
Talk me through your thinking if you like. When you're confident, submit your answer and I'll grade it like a real screen (7/10 or better passes).
Design a webhook system.
Asked in the Frontend interview stage. Explain the end-to-end design, including API contracts, delivery behavior, retries, security, observability, and how clients receive reliable event notifications.