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websocket.send() está desconectado en la ejecución de websocket.send en reactjs?

Estoy usando WebSocket en mi aplicación reactjs pero tengo problemas al usar WebSocket.send() .

Este es mi código:

 let ws; const PushNotifications = () => { const [show, setShow] = useState(true); const [image, setImage] = useState(null); const [title, setTitle] = useState(""); const [message, setMessage] = useState(""); const [base64Image, setBase64Image] = useState(""); ws = new WebSocket("ws://192.168.18.112:8000/ws/notification/"); const imageUpload = async (e) => { setImage(e.target.files[0]); console.log(image); let base64 = await convertBase64(image); setBase64Image(base64); console.log(base64Image); }; const convertBase64 = (file) => { return new Promise((resolve, reject) => { if (file) { const fileReader = new FileReader(); fileReader.readAsDataURL(file); fileReader.onload = () => { resolve(fileReader.result); }; fileReader.onerror = (error) => { reject(error); }; } }); }; const sendNotification = (e) => { e.preventDefault(); console.log("click"); // let data = { image: base64Image, title: title, message: message }; if (ws.readyState === WebSocket.OPEN) { ws.send("data"); console.log("Sending notification"); } else if (ws.readyState === WebSocket.CONNECTING) { ws.addEventListener("open", () => sendNotification()); console.log("Connecting state"); console.log("Not Send"); } else { console.log("nothing happen"); } }; ws.onmessage = (e) => { console.log(e); let { data } = e; let messageInfo = JSON.parse(data); console.log(messageInfo, "msg"); }; ws.onclose = (e) => { console.log("disconnect:", e); }; ws.onerror = (e) => { console.log(e); }; useEffect(() => { ws.onmessage = (e) => { console.log(e); let { data } = e; let messageInfo = JSON.parse(data); console.log(messageInfo, "msg"); }; ws.onopen = (e) => { console.log("connect"); }; return () => { ws.close = (e) => { console.log(e); }; }; }, [image]); return ( <div> {....}

Cuando presiono el botón para enviar un mensaje, la respuesta de la consola es "enviar notificación" y luego, de repente, el WebSocket se cierra. mi problema es que ws.send() no se está ejecutando y por qué el WebSocket se desconecta repentinamente. y también su backend está construido con Django.

about 4 years ago · Juan Pablo Isaza
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