Editor's pick
APIsGuide
Design and Build a JSON API in Go That Stays Maintainable
Build a JSON API in Go from a written contract: standard routing, one error format, strict decoding, validation, cursor paging, PATCH, auth and tests.
39 min read
Library
Everything you need to level up your coding skills.
Web
WebSockets in Go With a Real Hub Design and Backpressure
Build a WebSocket hub in Go with gorilla/websocket: origin checks, read limits, ping and pong, per client send queues and a rule for slow consumers.
13 min read
Web
Build a Pastebin Clone in Go With Expiring Share Links
Build a pastebin in Go on SQLite with unguessable IDs, expiry, burn after read that survives link previews, delete tokens and output that cannot run scripts.
20 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
WebGuide
Templ for Type Safe HTML Components in Go Web Apps
A practical templ tutorial for Go: write components in .templ files, generate Go code, compose layouts, serve them over HTTP and test the output.
12 min read
Web
Proxy Support and Environment Variables in Go HTTP Code
How Go's HTTP client reads HTTP_PROXY, HTTPS_PROXY and NO_PROXY, which hosts it never proxies, why runtime changes are ignored, and how to set one yourself.
7 min read
Web
Build an Admin Dashboard With Templ HTMX and Tailwind
Build an admin dashboard in Go with templ, HTMX and Tailwind classes: a shell, stat cards, a sortable paged table, role aware buttons and server side checks.
20 min read
Web
Build a URL Shortener in Go With Tests and a Database
Build a URL shortener in Go on SQLite with random base62 codes, collision retries, custom aliases, expiry, hit counting and tests for the awkward cases.
19 min read
Web
Subdomain Routing With the Standard Mux in Go Apps
Route api, admin and www hosts to different handlers with one http.ServeMux by putting the host in the pattern, and learn how it treats ports and case.
4 min read
Web
Build a Server Rendered Dashboard in Go With HTMX Basics
Build a dashboard in Go with html/template and HTMX: fragments chosen by the HX-Request header, polling cards, filters, a retry button and HX-Trigger.
16 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
Templ Testing Components With Golden HTML Files in Go
Test templ components with golden HTML files and an update flag, add structural checks that parse the output with x/net/html, and read a failure message.
9 min read
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