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I have an App Sync GraphQLAPI with a bunch of lambda data sources. One of these lambdas handles a mutation that stores chat messages for a chat room. I need to create a subscription on that mutation for other users in the chat room so that they will get messages that are posted.

It is my understanding that I can create a subscription filter to accomplish this: in my case the filter would be the chatroom ID.

How do I create a subscription filter as shown in the documentation above using the CDK?

Przemek Lach
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