Quick question about `__typename`. Is this somethi...

# apollo-kotlin

[Frank Sullivan]

Quick question about __typename. Is this something that is added automatically by middleware on the back end? Or is it something that back end devs need to add themselves? I ask because I noticed the Star Wars API doesn't return __typename for its objects. I'm curious how reliable it is to use as part of a cache key

[mbonnin]

It's a GraphQL meta-field, all the servers must support. Apollo Kotlin adds it automatically during codegen so it's usually quite reliable

[Frank Sullivan]

awesome!