Swagger, gRPC or GraphQL?

Yes I did give Ash a try! Was able to build the demo app with both GraphQL and Rest interfaces in about 90 minutes. I found the tutorials to be good!

The Json Api was better than the one I would have built by hand. Spec compliant vs. whatever I would have hacked together.

Will build my next app on Ash & hope to learn more of the ins and outs.