Viewing profile — dschafer

I've been hooked on Queens puzzles ( https://www.linkedin.com/games/queens/ ) for the last few months, and decided to try and build a solver for them. Rather than doing a tradition…

We've been using GraphQL at Facebook in production for almost five years now, and it powers a huge amount of our iOS/Android app's API traffic. We also did a comprehensive revisit …

Yeah, introducing a new field and deprecating the old one seems like the best option here. The nice thing is that while this introduces new functionality, there's still only one ve…

FB's GraphQL APIs are only used by our first-party applications; for third-party APIs (where you don't control the callers), it definitely gets trickier for the reasons you note. O…

When building out a GraphQL schema, the schema developer chooses which functionality to expose to the client. So rather than having the client do operations or predicates directly,…

The GraphQL API acts as a layer atop application code; it assumes that the application code takes care of any access controls (since those access controls would apply to anyone que…

GraphQL queries are hierarchical so that the response mirrors the structure of the query. We found that there were needs of the query (query parameters and directives, for example)…

Yep, GraphQL is agnostic as to how your data is stored. For example, https://github.com/graphql/swapi-graphql/ is a GraphQL schema that is backed by the swapi.co API. The examples …

It's passed to that function in the reference implementation, but a server would probably create a helper function that runs a query for a particular schema. For example, you can j…

GraphQL doesn't prescribe a particular approach to mutations; it allows the server developer to specify what mutations are available. For example, at Facebook we have a storyCreate…