Designing and running server-side systems — REST and GraphQL APIs, data modeling, authentication, and reliable request handling.
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Most indexing mistakes share one root: the index exists, but the query as written cannot use it. The errors t…
A diagnostic walkthrough for CORS failures — what the browser is actually refusing to do, how to map each err…
The API design best practices that make an API predictable and safe to change: consistent naming, honest stat…
A dropped response makes the client retry — and now you've charged the card twice. Here's how idempotency key…
REST and GraphQL both build APIs, but one leans on HTTP caching and simplicity while the other lets clients f…
A CAPTCHA-solving API turns an unfakeable challenge token into an async job your code can orchestrate. Here's…
Why database connection pools run dry under load, why adding app servers makes it worse, and how to size pool…
A pragmatic, vendor-neutral guide to designing REST APIs developers actually enjoy using — resources, status…