What would you like to know? We have a pretty robust unified graphql api that handles millions of requests per second. Its has recently replaced siloed REST ap

What would you like to know? We have a pretty robust unified graphql api that handles millions of requests per second. Its has recently replaced siloed REST api's and now provides a common interface and RBAC for all of our data, which is housed in 5 different DB engines. Previously most of the data was in MongoDB, so implementing GQL allowed up to regression test the api surface while migrating the underlying data. Remote schemas and persistent queries were pretty integral to that effort.