Custom errors format

[hemache]

Hello guys,

I've following custom error class

class TypedError extends Error {
    constructor(message: string, public code: number) {
        super(message)

        // Set the prototype explicitly.
        Object.setPrototypeOf(this, TypedError.prototype)
    }
}

which I use in controller like

@Mutation()
raiseAnError() {
    throw new TypedError('Not found', 404)
}

however, using the playground I only get following with no Error.code

"errors": [
    {
      "message": "Not found",
      "locations": [
        {
          "line": 2,
          "column": 3
        }
      ],
      "path": [
        "raiseAnError"
      ]
    }
  ]

How can I achieve something like (https://codeburst.io/custom-errors-and-error-reporting-in-graphql-bbd398272aeb)

formatError(err) {
    errors.report(err, req);   // <-- log the error
    return {
      message: err.message,
      code: err.originalError && err.originalError.code,   // <--
      locations: err.locations,
      path: err.path
    };
  }```