Invalidate a tag on every mutation from code generated RTK Query base

[programm-ingovals]

I'm code generating RTK Query based on a OPENapi definition. There are some 30 tags with each one supplying multiple endpoints, pretty typical CRUD stuff.

One endpoint fetches a validation on the state of the whole system ( it is essentially a multi part form type of thing ) which I want to invalidate each time there is a mutation in addition to invalidating their standard tag type.

I'm asking for the best way to approach this. Here are some solutions I could think of but someone familiar with RTK Query could see what the best option is (probably not one of mine).

1. Add every other tag as providesTags to the getValidation query using enhanceEndpoint. This might lead to maintenance issue if new endpoints are added and this list not updated manually, but seems minor.
2. Add validation tag to every mutations invalidateTags array using enhcanceEndpoints. This one feels like the more correct way to do it but manually updating all these endpoints by name is pretty sweaty and again more likely to lead to maintainance issues. Is there perhaps a way to iterate over endpoints in enhanceEndpoints by type and add it that way?
3. Add a middleware that checks on fulfilled mutations and invalidates the tag. I'm just note sure if you can programatically invalidate in that way

[programm-ingovals]

I ended up going for the middleware

export const validationMiddleware: Middleware =
  (api: MiddlewareAPI) => (next) => (action) => {
    if (isFulfilled(action) && action.meta.arg.type === 'mutation') {
      api.dispatch(rtkApi.util.invalidateTags(['Validation']))
    }

    return next(action)
  }