ダンゲル氏の傑作コード

gistfile1.go

func (k *Ksatriya) handle(method, path string, hf HandlerFunc, filterFuncs map[string]FilterFunc) {
	k.router.Handle(method, path, func(w http.ResponseWriter, req *http.Request, args httprouter.Params) {
		ctx := NewContext(req, args)

		if ff, ok := filterFuncs[BeforeFilterFuncKey]; ok {
			ff(ctx)
			if ctx.Response().StatusCode() == http.StatusFound {
				ctx.Write(w)
				return
			}
		}

		hf(ctx)
		if ctx.Response().StatusCode() == http.StatusFound {
			ctx.Write(w)
			return
		}

		if ff, ok := filterFuncs[AfterFilterFuncKey]; ok {
			ff(ctx)
		}

		ctx.Write(w)
	})
}