errhandler

errhandler

Wraps Go's http.HandlerFunc, allowing for simpler use of http.NewServeMux().

Install

go get github.com/codingconcepts/errhandler

Usage

Wrap Go's stdlib http.HandlerFunc using errhandler.Wrap():

mux := http.NewServeMux()
mux.Handle("GET /products/{id}", errhandler.Wrap(getProduct))

Update your existing handler signature, by adding an error return type:

func addProduct(w http.ResponseWriter, r *http.Request) error {
	...
}

Utilize the ParseJSON and SendJSON functions to reduce the amount of boilerplate code handlers require:

var p product
if err := errhandler.ParseJSON(r, &p); err != nil {
  return fmt.Errorf("parsing request json: %w", err)
}

products[p.ID] = p

return errhandler.SendJSON(w, p)