Debugging distributed requests is miserable without a stable request id, so I generate it once at the edge, echo it back via x-request-id, and attach it to every log line with a child logger. I keep this intentionally boring because it delivers 80% of

Server-side validation is the source of truth, but raw error payloads are rarely UI-friendly. I normalize validation errors into a Record<field, message> shape so forms can render them consistently. The tricky detail is mapping server field path

For admin-ish UIs, inline editing is the best balance of speed and clarity. I wrap each row in a turbo_frame_tag keyed by dom_id(record) and render either a read-only row partial or an edit form partial inside the same frame. Clicking “Edit” targets t

Clients love predictable pagination. Provide Link headers and totals when feasible. This snippet shows a small helper that generates RFC5988-ish link headers for JSON endpoints.

When toasts are appended via Turbo Streams, they should self-dismiss without extra wiring. I attach a Stimulus controller to the toast element that schedules removal after a delay (and allows manual close). This means the server only needs to render a

Periodic jobs are common (cleanup, digests, rollups), and it’s easy to accidentally run them on every instance in production. In local dev, in-process node-cron is fine. In production, I either run a dedicated worker or add a guard so only one instanc

Tagging systems can be expensive. For quick “top tags” features, compute from the join table with group and count. Avoid loading full taggable records.

A real health check tests the dependencies you care about (DB, Redis). Keep it fast and don’t make it do expensive queries. Use it for load balancers and alerts.

Custom middleware lets me inspect or modify every request and response. I implement both __init__ (called once at startup) and __call__ (for each request). By storing start time in the request, I can measure total processing time including view and te

django-allauth provides ready-made social auth (Google, Facebook, GitHub, etc.). I configure providers in settings with API keys. It handles OAuth flows, token management, and account linking. Users can login with multiple providers. I customize templ

A robust feature flag read path should be fast, but also resilient to cache outages. Cache the computed result briefly and fall back to DB if needed; keep the interface dead simple.

Deep relative imports are a maintainability tax. Once a project grows, ../../../ becomes noise and refactors get painful. I define a small set of path aliases (like @/* for app code) and keep them consistent across TypeScript, Jest/Vitest, and the bun