no resolver when adding directive to scalar field

[fc-io]

Tried adding a directive to a field

  type Article {
    id: ID!
    authorId: ID!
    authorName: String!
    articleName: String!
    link: String! @hasScope(scope: ["write:articles"])
    review: Review
  }

...but it throws on oldResolve.call as it does not have a field.resolve. https://github.com/chenkie/graphql-auth/blob/8d474576a13247b03d2862e9307ed4a8b4ea958d/directives/index.js#L68-L72

I'm not sure what would be appropriate here (have never built a graphql server before).

Made it work by making the following additions:

const {defaultFieldResolver} = require('graphql');
// ...
let promise = oldResolve ? oldResolve.call(field, ...arguments) : defaultFieldResolver.call(field, ...arguments)

[giautm]

        const oldResolve = field.resolve || defaultFieldResolver;

@fc-io : shorten. :D