[kkajla]

I think GraphQL might be a good example. Some might not consider it to be very niche, but its intention is to consolidate dependent API queries such that the client can fetch all the data it needs in a single request. In both Zanzibar and GraphQL, the idea behind the schema/modeling language is to provide a layer where logic specific to relationships between data (in the case of GraphQL) or logic specific to authorization (in the case of Zanzibar) can be specified such that neither the server nor the client need to worry about it and can instead query for data in a simpler way.

[sails]

Thanks, I suppose GraphQL is a valid example, I was thinking niche in terms of application eg Zanzibar is auth only, and you would struggle to use it for much else