Init.

.gitignore

@@ -0,0 +1,4 @@
+*.exe
+exe
+*.vim
+test

cmd/test/main.go

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+package main
+
+import (
+	"github.com/omnipunk/bond"
+)
+
+var root = bond.Mux().
+Def(
+	"",
+	bond.ContextFunc(func(c *bond.Context){
+		c.W.Write([]byte("This is the index page"))
+	}),
+).Def(
+	"hello",
+	bond.Mux().Def(
+		"en",
+		bond.ContextFunc(func(c *bond.Context){
+			c.W.Write([]byte("Hello, World!"))
+		}),
+	).Def(
+		"ru",
+		bond.ContextFunc(func(c *bond.Context){
+			c.W.Write([]byte("Привет, Мир!"))
+		}),
+	),
+)
+
+func main() {
+	srv := bond.Server{
+		Addr: ":10800",
+		Handler: root,
+	}
+	err := srv.ListenAndServe()
+	if err != nil {
+		panic(err)
+	}
+}

errors.go

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+package bond
+
+import (
+	"errors"
+)
+
+var (
+	DupDefErr = errors.New("duplicate route define")
+)

go.mod

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+module github.com/omnipunk/bond
+
+go 1.21.3

handler.go

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+package bond
+
+import (
+	"net/http"
+)
+
+type Request = http.Request
+type ResponseWriter = http.ResponseWriter
+type HandlerFunc = http.HandlerFunc
+type Handler = http.Handler
+type Server = http.Server
+
+type Context struct {
+	R *Request
+	W ResponseWriter
+}
+
+type ContextFunc func(*Context)
+func (fn ContextFunc) ServeHTTP(w ResponseWriter, r *Request) {
+	fn(&Context{
+		R: r,
+		W: w,
+	})
+}
+

readme.md

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+# bond
+
+Golang library to easily write backend and connect
+it to the frontend.
+

router.go

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+package bond
+
+import (
+	"net/http"
+	"strings"
+	"fmt"
+	"path"
+)
+
+type Router struct {
+	pathMap map[string] Handler
+}
+
+func Mux() *Router {
+	ret := &Router{}
+	ret.pathMap = map[string] Handler{}
+	return ret
+}
+
+func (router *Router) Def(pth string, handler Handler) *Router {
+	_, dup := router.pathMap[pth]
+	if dup {
+		panic(DupDefErr)
+	}
+	router.pathMap[pth] = handler
+	return router
+}
+
+func (router *Router) ServeHTTP(w ResponseWriter, r *Request) {
+	pth := r.URL.Path
+	pth = path.Clean(pth)
+	pths := strings.SplitN(pth, "/", 3)
+
+	var name string
+	if len(pths) > 1 {
+		name = pths[1]
+	}
+	name, _ = strings.CutSuffix(name, "/")
+
+	prefix := "/"
+	if pth != "/" {
+		prefix = path.Clean("/" + name)
+	}
+
+	fmt.Printf("Path: %q\n", r.URL.Path)
+	fmt.Printf("%q %q %q %q\n", pth, prefix, pths, name)
+	handler, ok := router.pathMap[name]
+	if !ok {
+		http.NotFound(w, r)
+		return
+	}
+
+	r.URL.Path = pth
+	http.StripPrefix(prefix, handler).ServeHTTP(w, r)
+}
+

taskfile.yml

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+version: 3
+
+tasks:
+  btest:
+    cmds:
+      - go build -o ./test ./cmd/test/ 
+