/tags/http/Recent content in Http on Momo Engineering Journal/images/og-image.png/images/og-image.pngHugoen-usTue, 20 Oct 2026 21:08:58 -0600/posts/052-bolt-etag-matches-zero-alloc/Tue, 06 Oct 2026 11:16:37 +0000/posts/052-bolt-etag-matches-zero-alloc/How we removed the heap allocation from ETag list parsing on the S3 conditional-request path by replacing strings.Split with a strings.IndexByte scan. Teaches: what If-Match/If-None-Match actually carry, why Split allocates per request, and how a microbenchmark proves the win.