Function Values

query/encode.go:125–146

Values returns the url.Values encoding of v. Values expects to be passed a struct, and traverses it recursively using the following encoding rules. Each exported struct field is encoded as a URL parameter unless - the field's tag is "-", or - the field is empty and its tag specifies the "omitempt

(v interface{})

// Multiple fields that encode to the same URL parameter name will be included
// as multiple URL values of the same name.
func Values(v interface{}) (url.Values, error) {
	values := make(url.Values)

	if v == nil {
		return values, nil
	}

	val := reflect.ValueOf(v)
	for val.Kind() == reflect.Ptr {
		if val.IsNil() {
			return values, nil
		}
		val = val.Elem()
	}

	if val.Kind() != reflect.Struct {
		return nil, fmt.Errorf("query: Values() expects struct input. Got %v", val.Kind())
	}

	err := reflectValue(values, val, "")
	return values, err
}

// reflectValue populates the values parameter from the struct fields in val.
// Embedded structs are followed recursively (using the rules defined in the