graphql-yoga will help you to create API gateway, while graph cool helps to create graphql as a database, checkout this example, here are both API Gateway & Graphcool:
https://github.com/graphcool/framework/tree/master/examples/node-gateway-custom-schema
Note: in that example API Gateway is not implemented with graphql-yoga, I've shared that example to see the difference between API gateway and graph cool, both of them are graphql but they solve different kind of tasks.
You mean graphcool is like graphql native and graphql-yoga is like Api gateway to stitch multiple graphql native and rest api's
Yep, Also I plan to use graphql-yoga for a separate graphql instance, realtime game server.
Cool 馃槑, thanks for clarification
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You mean graphcool is like graphql native and graphql-yoga is like Api gateway to stitch multiple graphql native and rest api's