Support routing for default WSS endpoint

[marktani]

Issue by marktani
Thursday Aug 17, 2017 at 14:02 GMT
Originally opened as https://github.com/graphcool/prisma/issues/346

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For all APIs apart from the WSS endpoint, the default endpoint can be used across regions. However, for subscriptions, the region specific endpoint has to be used:

• default: wss://subscriptions.graph.cool/v1/__PROJECT_ID__
• AP: wss://subscriptions.ap-northeast-1.graph.cool/v1/cislqwo6e039e01171nzb9mxw
• US: wss://subscriptions.us-west-2.graph.cool/v1/cislqwo6e039e01171nzb9mxw

It should be possible for all regions to use the default endpoint.

[marktani]

Comment by sorenbs
Tuesday Sep 12, 2017 at 13:23 GMT

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We don't want to proxy websocket connections as they have to stay open for an extended period of time. Rather, we should redirect to the correct region. Some ws implementations are known to not follow redirects, so we should verify that this works with Apollo in most cases.

See for example websockets/ws#812