Web
Templ Streaming and Partial Rendering for Faster Pages
Stream templ pages with templ.Flush and WithStreaming so the shell reaches the browser before slow data is ready, and see what a failed streamed render does.
7 min read
Topic
Performance
Profile first, then change something. pprof, allocations, the garbage collector, escape analysis and benchmarks that hold up in production.
APIs
Cache API Responses in Go With Redis and Invalidate Safely
Cache API data in Redis from Go: cache-aside with singleflight, a version fence against stale writes, namespace versions for lists and TTL jitter, on Redis 8.
16 min read
Web
Cache HTTP Responses in Go Handlers With Middleware
Build an in-memory response cache for Go handlers with keys, a TTL, Vary awareness, a singleflight stampede guard and rules for what must never be cached.
8 min read
Web
Expose Pprof on a Go Server Without Exposing It to Everyone
Serve net/http/pprof from a separate loopback listener with a token, avoid the DefaultServeMux trap, and fix the WriteTimeout error on CPU profiles.
9 min read
APIs
Large JSON Responses in Go Without Running Out of Memory
Serve a 200,000-row JSON export in Go by streaming rows from the database: first byte in 1 ms instead of 161, 1 MB of heap instead of 57, and gzip on the fly.
11 min read
Web
Transport Settings for a Production Go HTTP Client
Walk through every http.Transport field that matters in production, with the default value, what changing it does and measured effects of connection limits.
7 min read
Web
ETags and Conditional Requests in Go Handlers Explained
Add strong ETags and If-None-Match handling to Go handlers, including weak comparison, lists of tags and a 304 that repeats the right headers.
7 min read
Web
Connection Reuse and Keep Alive in the Go HTTP Client
See when the Go HTTP client reuses a connection and when it dials a new one, using httptrace, and how idle timeouts and Connection close change that.
7 min read
Web
Cache Headers for Static and Dynamic Responses in Go
Choose Cache-Control values for fingerprinted assets, HTML pages, API responses and private data in a Go server, and set them from one small middleware.
7 min read
Web
Templ vs html template in Go and Which Is Better for You
Compare templ and html/template on the same 100 row page: render speed and allocations, error timing, escaping, tooling and when each is the right choice.
9 min read
APIs
Conditional GET and ETags for Go JSON APIs Explained
Make JSON API revalidation cheap in Go: ETags from a revision column, collection tags, exact If-None-Match matching, 304 headers and 10x less work.
14 min read
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