graphql_resolver_params.js

const api = require('./server/api');
const typeDefs = require('./server/schema');

const resolvers = {
  Query: {
    countries: () => api.countries,
    country: (obj, args) => {
      for (const record of api.countries) {
        if (record.id === args.id) {
          return record;
        }
      }
    },
  },
};