A sample GraphQL RootQueryType

rootQueryExample.js

const RootQueryType = new graphql.GraphQLObjectType({
  name: 'RootQueryType',
  fields: {
    accounts: {
      type: new graphql.GraphQLList(Account),
      description: 'A list of accounts.',
      args: {
        accountType: {
          type: AccountType
        },
        currencyCode: {
          type: graphql.GraphQLString
        },
        endDate: {
          type: GraphQLDate
        },
        startDate: {
          type: GraphQLDate
        }
      },
      resolve: (root, args) => {
        // the accounts controller handles data querying based on 'args' passed to query
        return controllers.accounts.get(args);
      }
    }
  }
});
        

What does the accounts controller look like?