Hopefully this is a basic question and I'm just being thick. Trying to write a permission query that just makes it so a user can only update themselves:

query ($user_id: ID!, $node_id: ID!) {
  SomeUserExists(filter:{
    id: $node_id
    id: $user_id
  })
}

That's obviously not a legal query, but I'm just try to say that the

$node_id

must be equal to the

$user_id

--am I on the right track?

yes, you're almost there!!

Ohhhhhhh, I actually just found the answer as you typed that 😄. Thanks!

you're a champ :D