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Version: 7.x.x


GraphQL Kotlin provides WebSocket subscription support with the generic Flow based implementation of GraphQL WS subscription protocol. Server implementations should extend generic abstract GraphQLWebSocketServer<Session, Message> class and fill server specific details on how to read incoming messages from the WebSocket session as well as how to send responses back to the client.

If you are using one of the official server implementations for GraphQL Kotlin, it will have subscription handling setup for you.