ApolloTracing in federation is not supported

I believe that apollotracing extension we have is not using the correct specs. It seems the tracing should be base64 encoded on protobuf and then put as value to the key ftv1 under extensions as described here https://www.apollographql.com/docs/federation/metrics/

Right now it just returns a json with the key tracing under extensions so apollo fails to parse it

[rafalp]

Hi @prasek and @mandiwise, thank you so much for reaching out and providing example implementation! ❤️

I’ll bring this up on our side next week so we can discuss where we want to go with that.

[mandiwise]

Hello @nilansaha and @rafalp, I’m also from Apollo and have an example of basic support for federated tracing implemented via an Ariadne extension here:

https://github.com/apollosolutions/ariadne-federated-traces

I mostly write Python on a recreational basis only, so I’m sure it can be improved upon. But hopefully the code will be a useful point of reference for you. The InlineTraceExtension class is based on Apollo Server’s ApolloServerPluginInlineTrace class (as well as the related TraceTreeBuilder class). Those classes provide a nearly line-for-line re-implementation of the Node plugin in Python.