react - Abrarqasim Blogs

Vercel AI SDK v5: what moving off raw OpenAI actually bought me

I migrated a Next.js chat endpoint from the raw OpenAI SDK to Vercel AI SDK v5. Here's the before/after code, where it wins, and where…

Rayyan | April 21, 2026 | 9 min

Web Development

Next.js App Router vs Pages Router: what actually changes

The Next.js App Router and Pages Router aren't just different file structures — they're different mental models. Here's what changes and what trips you up…

Rayyan | April 19, 2026 | 6 min

Web Development

useOptimistic is the React 19 hook I keep forgetting I have

A practical tour of React 19's useOptimistic hook with before/after code for a like button, a task list, and the gotchas I hit in production.

Rayyan | April 17, 2026 | 8 min

Web Development

Next.js Server Actions Finally Pushed Me Off API Routes

I resisted Next.js server actions for two years. Then I rebuilt a dashboard with them and dropped my /api form routes. Here's what worked and…

Rayyan | April 16, 2026 | 9 min

Web Development

React Compiler: what it actually does to your code

The React Compiler removes manual useMemo and useCallback from your components. Here's what changed, with real before-and-after code examples.

Rayyan | April 14, 2026 | 8 min