GraphQL Tokyo #10 Links: p11 https://speakerdeck.com/qsona/graphql-for-service-to-service-communication-protocol p12 https://note.com/qsona/n/nfc73a8e82dff p14 https://speakerdeck.com/qsona/graphql-changing-and-unchanging p23, p28 https://www.apollographql.com/docs/apollo-server/features/schema-stitching/ p30, p31 https://www.apollographql.com/docs/apollo-server/federation/introduction/ p33 https: