Having used graph.cool I can say there's a significant amount of lock-in. Authorization can be pretty specific to the implementation and often impacts your sche

Having used graph.cool I can say there's a significant amount of lock-in. Authorization can be pretty specific to the implementation and often impacts your schema. Secondly the extensions that have a lot of the logic are implemented differently every time. AppSync uses Apache Velocity Template Language (VTL), seems like a huge lock-in there. Don't be fooled by the GraphQL sticker, there's a significant amount of lock-in if you go with any of the SaaS(BaaS) products.