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danielAsaboro avatar danielAsaboro commented on June 24, 2024 1

If a client sends a EmitWithAck message, how can I send a response to ack the message from the go server?

that's through a callback, Wafje


socketClient.On("new-delivery-request", func(receivedData ...any) {
			fmt.Println("got new delivery request")
			receivedMessage := receivedData[0].(map[string]any)
			roomId := receivedMessage["socketRoomId"].(string)
			fmt.Println(receivedMessage)

			var callbackFn func([]interface{}, error)
			if fn, ok := receivedData[len(receivedData)-1].(func([]interface{}, error)); ok {
				fmt.Println("Callback is a function!")
				callbackFn = fn
				mapData := map[string]interface{}{
					"hasInterest": true,
					"who":         "wafje",
				}
				jsonData := []interface{}{mapData}
				callbackFn(jsonData, nil)

			} else {
				fmt.Println("Callback is not a function")
			}
}

the last payload from any event that has an acknowledgement is always a function with the signature " func([]interface{}, error)", invoke it like a callback function same way i did in the code above...and the emitter will get the response.

from socket.io.

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