Custom validators

[SupremeTechnopriest]

Hello!

Has the ability to create custom comment tags been removed from v5? It looks like the customValidators.insert function is no longer exported. I see the documentation for creating custom validation types, but I prefer the comment tag syntax.

[samchon]

Yes, removed it for type safety.

[SupremeTechnopriest]

Okay, so no way to do custom comment tags anymore? The new API makes it difficult to do complicated validations because everything is a string now.

For example:

export type CommaSeparated<Value extends string> = tags.TagBase<{
  kind: 'commaSeparated',
  target: 'string',
  value: Value,
  validate: `$input.split(',').every(v => ${Value}.split(',').includes(v))`
}>

This validator fails to compile. I want to validate if a comma separated string of values is part of a union type. Is there a better way to achieve this? Im validating a search parameter so passing an array isn't possible.

[SupremeTechnopriest]

Trying to use it like this:

interface IRequestQuery {
  foo: string & CommaSeparated<'bar,baz'>
}

[SupremeTechnopriest]

Ideally I would be able to use an actual union type:

export type MyType = 'bar' | 'baz'

[SupremeTechnopriest]

Any suggestions on how to implement this validator? It seems to fail when I pass the iterator function to every.

[SupremeTechnopriest]

Here is a playground that demonstrates the error. It compiles ok for js but not ts.

https://typia.io/playground/?script=JYWwDg9gTgLgBDAnmYBDANHA3g1BzAZzgF84AzKCEOAIiRVRoG4AoF4AOxgFMozUAxtzgBJALLcQAI17YWcBXGAATAFxwCMKJzxwAZHACKAV1RdgZRABFQ3DgWAR7AHhbE29YSbMwL12-aOLvJwAGqoADbGwtwAHjwcygQhCgA+cADkggCOGSlw6Rl2eHmKBZnAMGClioUCHABueQB8cAC8uIQAdAAq+ABCqATczlghANacapnKAQ5OBDUwqFB43DDqGZraHCUhDZHR6uFR3PuRKqg86gAGACScYMYwXQRgEZUAFBnoGQCUXW4DV4iE+j2e7Va4PgbVhmTIEAg-xubmabAEC3gBw+ynaCGQaC6Aig3Cu3BOlx4AFFsqYIgRnOJJDIoM1Pn8gA

[samchon]

Succeeded to find the reason why bug being occured.

Would be fixed soon, and patch version 5.0.1 would be published soon.

Thanks for reporting.

[SupremeTechnopriest]

Awesome! Glad to help!

[SupremeTechnopriest]

Works like a charm. Thanks!