Enforce one field based on another - kebab-case example

App Development
,
5

Could you guys show me how this could be done?

I am trying something like this:

Type Post {
  id: ID!
  name: string;
  nameKebab: String @lambda
}

Function:

function nameKebab({parent: {name} }) {
  console.log('working...');
  return kebabCase(name);
}

self.addGraphQLResolvers({
    "Post.nameKebab": nameKebab
});

function kebabCase(str) {
  const result = str.replace(
    /[A-Z\u00C0-\u00D6\u00D8-\u00DE]/g,
    match => '-' + match.toLowerCase()
  )
  return (str[0] === str[0].toUpperCase())
    ? result.substring(1)
    : result
}

The log is not printing anything, and the type is empty after I create a new record…

Thanks,

Jonathan