3 min read
Pass the CancellationToken or the Work Continues After the Client Left
ASP.NET Core binds CancellationToken to the aborted request. Forward it to EF Core and HttpClient, and do not turn a client disconnect into a 500.
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Coding & System Design
System design, modern web development with Next.js, React, .NET, Azure, and practical coding guides.
20 articles
5 min read
Next.js 16 Cache Components: Replacing revalidate and force-dynamic With 'use cache'
How Cache Components in Next.js 16 replace route segment configs with the use cache directive and cacheLife, what becomes a build error, and the cookies-outside-the-cache rule that trips every migration.
4 min read
TypeScript 7 Upgrade: 10x Faster tsc, and the API Gap You Have to Plan Around
TypeScript 7.0 is the native Go compiler, stable since July 2026, with 8 to 12x faster full builds. Deprecations are hard errors, strict and esnext are defaults, and the programmatic API waits for 7.1. A migration order that keeps lint and frameworks working.
3 min read
IHttpClientFactory: Stop Creating HttpClient Per Request
Why new HttpClient() in a .NET service exhausts sockets under load, and how IHttpClientFactory plus a named client fixes DNS without freezing the handler forever.
3 min read
React List Keys That Survive a Filter
Why key={index} corrupts state when a list is filtered, sorted, or prepended, and which id to use instead.
4 min read
React 19 useOptimistic: Instant UI Without Lying to the Server
How to wire useOptimistic with Actions so toggles and comments feel native, roll back on failure, and stay consistent when two mutations overlap.
4 min read
Designing Webhook Delivery That Survives Flaky Consumers
Signing, retries, ordering, and dead-lettering: the design decisions that separate reliable webhook delivery from silent event loss.
7 min read
Server Components vs. Client Components: A Mental Model That Sticks
The hardest part of React Server Components isn't the syntax — it's knowing which kind of component you're writing and why. Here is the mental model that makes the boundary obvious.
6 min read
Optimistic UI Updates: Making Apps Feel Instant Without Lying to Users
The like button that responds before the server confirms feels instant. The trick is updating the UI first and reconciling later — and handling the rollback so you never mislead the user.
7 min read
Dataverse Plug-in Performance: Avoiding the Slow Plug-in That Times Out
A synchronous plug-in runs inside the user's transaction with a hard time limit. One slow query or external call can break saves for everyone. Here is how to keep plug-ins fast and safe.
7 min read
Debouncing and Throttling in React: Taming Expensive Event Handlers
A search box that fires a request on every keystroke, a scroll handler running 60 times a second — these are debounce and throttle problems. The concepts are simple; React makes them subtly tricky.
6 min read
Next.js Partial Prerendering: The Production Migration Guide
PPR was the experimental flag in Next.js 15; in 16 it's been folded into Cache Components. Learn how static shells and dynamic holes work, how to migrate incrementally, and how to measure the LCP gains.