What type to use for resolver that returns an error when using Nexus

[Kelly Copley]

Question about GraphQL Shield

So this isn't specifically a qraphql-shield question, but I figured I'd take a shot in the dark since it's very likely that someone here uses it with Nexus and might be able to give me a decent answer.

Basically I'm using Nexus and shield together. Shield catches errors by default and so requires returning them. The problem is that I can't find a way to specify an error as the return type for a resolver using Nexus. Is there a proper way to specify this so that TypeScript doesn't complain about the mismatch of the type of the return value and the generated type? Right now I'm just casting the error to any to appease the compiler, but it would be nice to have a proper solution.

Here is a pared down example

mutationField('simpleMutationReturnsError', {
  type: nonNull('Error'), // <---- What should go here to specify an error as the return type 
  async resolve () {
    return new ApolloError('This is an error'); // <--- currently casting this using as any
  },
});

• I have checked other questions and found none that matches mine.

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