Resolvers for a Pokemon GraphQL API

pokemon.js

let Users = []

function getUser(name) {
  return Users.find(user => user.name == name)
}

function upsertUser(name) {
  let user = getUser(name)
  if (!user) {
    user = {
      name: name,
      created: 123,
      caught: []
    };
    Users.push(user);
  }
  return user;
}

function caughtPokemon(name, pokemon) {
  let user = getUser(name);
  let the_pokemon = Pokemon.find(x => x.name == pokemon);
  user.caught.push(the_pokemon);
  return user;
}