Use Apollo Federation to link RCSB PDB

[reskyner]

RCSB PDB already uses a GraphQL server, so instead of schema-stitching, it makes sense to use a federated server to include links. https://www.apollographql.com/blog/apollo-federation-f260cf525d21/

Steps:

• remove schemas for rcsb already included
• add Apollo Federation:
  • start server for own graph
  • consume that server and start a second server (only for development) with link to rcsb pdb
  • Should fabled-apollo server & fabled-apollo gateway sit separately?
  • Does RCSB server allow links through federation (i.e. is @key property set on fields?)

Docs: https://www.apollographql.com/docs/federation/migrating-from-stitching/ https://data.rcsb.org/#gql-api

[reskyner]

Probably not applicable - the search service has a separate endpoint and query method to the data service. Maybe investigate link instead (Apollo Link)