Validation and User Errors in GraphQL Mutations
Konstantin Tarkus
62816

Dislike this method ;)

GraphQL has build-in error system. So I recommend to use it. To return error from resolve method you may use:

resolve() {
 return Promise.reject(new Error(‘User with this email address already exists.’))
}

You may extend error object, eg. ValidationError. And provide to it field name or object with fieldNames and errors.

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