glerd_valid

Gleam Record validators using Glerd metadata

gleam add --dev glerd glerd_valid

1. Describe your records with validation metadata

Example:

pub type User {
  /// valid:age:'gte=18, lt=150'
  /// valid:name:'gte=3, lt=100'
  User(age: Int, name: String)
}

2. Generate Records info

Use Glerd

3. Make module for validators generation

my_module.gleam

import glerd_valid
import glerd_gen

pub fn main() {
  glerd_gen.record_info
  |> glerd_valid.generate("src", _)
}

4. Gen validators

gleam run -m my_module

Further documentation can be found at https://hexdocs.pm/glerd_valid.

Supported metadata

Int, String

• gte, min - Number/String length should greater or equal than
• gt - Number/String length should greater than
• lte, max - Number/String length should less or equal than
• lt - Number/String length should less than
• eq - should be equal to
• ne - should not be equal to

Development

gleam test # and then commit generated file