export {
  gql,
  GraphQLOptions,
  Config,
  GraphQLSchemaModule,
  // Errors
  ApolloError,
  toApolloError,
  SyntaxError,
  ValidationError,
  AuthenticationError,
  ForbiddenError,
  UserInputError,
} from 'apollo-server-core';

export { CorsOptions } from 'apollo-server-express';