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react native websocket useSession

barisx answered on April 8, 2022 Popularity 4/10 Helpfulness 2/10

answer react native websocket useSession

react native websocket useSession

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// websocketUtils.ts

export const useSession = (
  onOpen: OpenHandler, 
  onMessage: MessageHandler, 
  onClose: CloseHandler
): SessionHook => {
  const [session, setSession] = useState(null as unkown as Websocket);
  const updateOpenHandler = () => {
    if (!session) return;
    session.addEventListener('open', onOpen);
    return () => {
      session.removeEventListener('open', onOpen);
    };
  };

  const updateMessageHandler = () => {
    if (!session) return;
    session.addEventListener('message', onMessage);
    return () => {
      session.removeEventListener('message', onMessage);
    };
  };

  const updateCloseHandler = () => {
    if (!session) return;
    session.addEventListener('close', onClose);
    return () => {
      session.removeEventListener('close', onClose);
    };
  };

  useEffect(updateOpenHandler, [session, onOpen]);
  useEffect(updateMessageHandler, [session, onMessage]);
  useEffect(updateCloseHandler, [session, onClose]);

   .... // connect, sendMessage utils
}

Popularity 4/10 Helpfulness 2/10 Language javascript

Source: dev.to

Tags: javascript react-native websocket

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Contributed on Apr 08 2022

barisx

0 Answers Avg Quality 2/10

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