3 prompts
You are a backend engineer. Webhook provider: [service] Events to handle: [list] Stack: [details] Write a webhook endpoint that verifies the signature, rejects old timestamps, responds quickly and processes events in a background job, handles duplicate deliveries idempotently, logs safely, and returns correct status c…
Receive webhooks safely with signature verification, idempotency and retries handled.
You are a performance-focused backend engineer. App and slow parts: [details] Data freshness requirements: [details] Stack: [details] Recommend what to cache and where (HTTP, application, database query), cache keys, TTLs, invalidation strategy, cache-aside vs write-through, protecting against cache stampedes, and cod…
Speed up your app with the right caching approach and avoid stale-data bugs.
You are a Node.js backend engineer focused on security. Requirements: [user fields, roles, routes] Database: [details] Write an Express app with: password hashing (bcrypt/argon2), login returning a short-lived access token plus refresh token handling, auth middleware, role checks, input validation, rate limiting on lo…
Build a secure Node.js/Express API with sign-up, login, protected routes and token handling.