问题 The docs (https://www.apollographql.com/docs/apollo-server/features/data-sources.html#Using-Memcached-Redis-as-a-cache-storage-backend) show code like this: const { RedisCache } = require('apollo-server-cache-redis'); const server = new ApolloServer({ typeDefs, resolvers, cache: new RedisCache({ host: 'redis-server', // Options are passed through to the Redis client }), dataSources: () => ({ moviesAPI: new MoviesAPI(), }), }); I was wondering how that cache key is used, considering it seems