A bit on the fence with this still... but that sounds like an interesting path to explore in dealing with service APIs. A DSL with a code generator allows to neatly separate concerns if done properly. I wonder where the catches are (apart from the obvious strong coupling to Golang in that particular case).

Very interesting story (even though it feels a bit like advertisements at times) about the quest to get color into e-ink displays. Goes on to explain a bit of the technology behind those.