How to check in MODx API REVO the existanse of the resource in choosen context with some alias?

Hello. I have some problem in linking the multidomain site.
How to check in MODx API REVO the existanse of the resource in choosen context with some alias? For example, I have two context - main 'web' context & 'subdomain' context. And I set in my cookie the context of some user. I have pages with alias - 'contacts' in both context, and need to link user to the subdomain.domain.contacts.html, cause of in cookie I know, he belongs to this context, and the page subdomain.domain.contacts.html - exist.

I try to find the solution in GetResources snippet, but have seen it has no 'alias parameter'.

Be very glad to know the solution.

You can use the property in getResources. With that, you can use any field of the resource (e.g., 'alias' and 'context_key').