Method Format

net/http/httperror/httperror.go:45–67

Format builds an error Response body describing err by consulting the f.Errors lookup table. If no entry is found, it returns f.Default.

(err error)

// Format builds an error Response body describing err by consulting
// the f.Errors lookup table. If no entry is found, it returns f.Default.
func (f Formatter) Format(err error) (body Response) {
	root := errors.Root(err)
	// Some types cannot be used as map keys, for example slices.
	// If an error's underlying type is one of these, don't panic.
	// Just treat it like any other missing entry.
	defer func() {
		if err := recover(); err != nil {
			body = Response{f.Default, "", nil, true}
		}
	}()
	info, ok := f.Errors[root]
	if !ok {
		info = f.Default
	}

	body = Response{
		Info:      info,
		Detail:    errors.Detail(err),
		Data:      errors.Data(err),
		Temporary: f.IsTemporary(info, err),
	}
	return body
}

// Write writes a json encoded Response to the ResponseWriter.
// It uses the status code associated with the error.