go-server

I've learned that go 1.22 released with "Enhanced routing patterns", allowing you to set up a fairly complex server with different routes and methods and stuff with just stdlib:

package main

import (
	"fmt"
	"html"
	"net/http"
)

func HandleEndpoint(w http.ResponseWriter, r *http.Request) {
	_, _ = fmt.Fprintf(w, "Hello, %q", html.EscapeString(r.URL.Path))
}
func main() {
	http.HandleFunc("GET /{$}", HandleEndpoint)
	http.HandleFunc("POST /api/todos/{id}", HandleEndpoint)
	http.HandleFunc("GET /todos", HandleEndpoint)
	http.HandleFunc("PUT /api/todos", HandleEndpoint)

	_ = http.ListenAndServe("8080", nil) 
}

Kinda exiting, huh? So I decided to try it.

So this is a project of me "trying it". It has no other dependencies or libs, other than htmx for less javascript (which seems to be all the rage these days). Right now it features:

• no dependencies
• routing
• static files route
• ETags for static files
• middleware
• middleware that wraps/modifies http.ResponseWriter
• persistent database in its simplest form - a json file
• CRUD
• 404 page
• redirect to 404 on unknown urls
• htmx partials endpoint protection (redirect to 404 if not htmx request)
• config.json
• command line flag for where to get config.json from
• Two entities with common ID trait
• "Pure DI" (not my name)
• basic auth
• Docker
• Watch build size with make
• teeny-tiny generics usage

Other notes

Default address is 0.0.0.0 not localhost because docker.

When I, inevitably, would want to stop docker container and run the app straight:

docker container stop go-server

Will stop the server

docker system prune -a --volumes

Will delete all build artefacts from disk.

And, just in case, list containers:

docker container list