Although we're not a very large company, we do something similar, using it as a gateway for everything but file uploads and some other special cases. It feels l

Although we're not a very large company, we do something similar, using it as a gateway for everything but file uploads and some other special cases. It feels like a cross between a system-wide statically typed interface and HTTP routing. The tools (graphiql, graphdoc, apollo, the apollo eslint plugin) are really good and they help make the API feel discoverable and flexible.