Middleware for CLI commands, not just web servers
Timing, auth, recovery and logging are cross-cutting in a CLI too. Wrapping Cobra commands in web-style middleware rather than PreRun hooks.
Tags
34 pages
Architecture
A logging interface that doesn't leak its backend
One tool, three logging backends: colour for a terminal, JSON for a container, silence for tests. Depend on the interface, choose the backend once.
Many embedded filesystems, one merged view
Go embed.FS is per-package, so a modular CLI ends up with islands. Merging them into one filesystem, and deep-merging YAML and JSON across them.
Props: the container that does the heavy lifting
Passing dependencies to Go commands in a typed struct rather than stuffing them in context.Context, so the compiler checks them and tests stay simple.
