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Do You Need a Go Web Framework or Just net http Alone
Write one small notes API twice, with net/http and with gin, and compare the code you write, where the behavior differs and what the framework really saved.
9 min read
Library
Everything you need to level up your coding skills.
APIs
Structure JSON Responses in Go With a Consistent Envelope
How a Go API should wrap its JSON: bare resources, a data envelope for lists, empty arrays instead of null, optional totals, and why to skip a success flag.
8 min read
Web
TLS for a Go Server With Autocert and Lets Encrypt
Serve HTTPS from a Go program with autocert and Lets Encrypt, limit which hostnames may get certificates, persist the cache and handle port 80.
7 min read
Web
Generate an RSS Feed From a Go Application Correctly
Generate a valid RSS 2.0 feed in Go with encoding/xml: required fields, stable GUIDs, RFC 1123 dates, absolute URLs, escaping and conditional GET.
10 min read
APIs
Custom JSON Marshalers in Go for Enums and Timestamps
Write JSON marshalers in Go for enums, dates, durations and Unix times: MarshalText versus MarshalJSON, clear errors, the pointer receiver trap and recursion.
11 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
Templ With HTMX for Interactive Pages Without a SPA
Build a contacts directory with templ and HTMX: live search, endless scroll, click to edit with validation, delete with an out of band count and fragments.
18 min read
APIs
API Keys in Go and How to Generate Hash and Rotate Them
Generate, store and rotate API keys in Go: a prefixed format with a checksum, SHA-256 storage, throttled last-used, overlap rotation and 85 ns rejection.
13 min read
Web
Test Middleware Chains in Go From Request to Response
Test Go middleware one piece at a time with a spy handler, then test the whole chain for order, short circuits, panics, headers and context values.
10 min read
Web
A Templ Cheat Sheet for Syntax Components and Helpers
A one page templ cheat sheet: component syntax, control flow, attributes, css and script components, children, fragments, helpers and commands in one program.
6 min read
Web
Server Sent Events in Go for Live Browser Updates Explained
Build a server sent events endpoint in Go with flushing, event ids, Last-Event-ID resume, heartbeats and clean shutdown, and see the wire format it sends.
7 min read
Web
Send Webhooks From Go With Retries and Request Signing
Build the sending side of webhooks in Go: signed deliveries, a retry schedule that honors Retry-After, permanent versus temporary failures and dead endpoints.
16 min read
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