parse.go

func ParseConstraints(data []byte) ([]types.Constraint, error) {
	var constraints []types.Constraint
	var dat map[string][]map[string]string
	if err := json.Unmarshal(data, &dat); err != nil {
		return nil, err
	}
	val, ok := dat["constraint"]
	if !ok {
		return nil, nil
	}
	for _, mapv := range val {
		for k, v := range mapv {
			if strings.Contains(v, "limit") {
				value, err := strconv.Atoi(strings.Split(v, ":")[1])
				if err != nil {
					return nil, err
				}
				constraints = append(constraints, types.Constraint{ConstraintType: "limit", Key: k, Value: value})
			}
			constraints = append(constraints, types.Constraint{ConstraintType: "value", Key: k, Value: v})
		}
	}
	return constraints, nil
}