Valgo

Type-safe, expressive, and extensible Go validator
with i18n support.

Getting Started

val := v.Is(
  v.String("Bob", "full_name").Not().Blank().OfLengthBetween(4, 20),
  v.Number(17, "age").GreaterThan(18),
)

if !val.Valid() {
  out, _ := json.MarshalIndent(val.ToError(), "", "  ")
  fmt.Println(string(out))
}

{
  "age": [
    "Age must be greater than \"18\""
  ],
  "full_name": [
    "Full name must have a length between \"4\" and \"20\""
  ]
}

Installing

go get github.com/cohesivestack/valgo

Agent skill

npx skills add cohesivestack/valgo –skill valgo