Created
April 21, 2020 20:26
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Using React Hooks for Phoenix Socket/Channels
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import React, { createContext, useContext, useRef } from 'react'; | |
import { Socket } from 'phoenix'; | |
import AuthContext from './AuthContext'; | |
const SocketContext = createContext<Socket>({} as Socket); | |
const SocketConsumer = SocketContext.Consumer; | |
const SocketProvider: React.FC = ({ children }) => { | |
let token = useContext(AuthContext).token!; | |
let socketRef = useRef<{ | |
token?: string; | |
socket?: Socket; | |
}>({}); | |
if (socketRef.current.token !== token) { | |
socketRef.current.socket?.disconnect(); | |
console.log('Socket Context :: Connect'); | |
let socket = new Socket(process.env.REACT_APP_SOCKET_HOST!, { params: { token } }); | |
socket.connect(); | |
socketRef.current = { | |
token, | |
socket, | |
}; | |
} | |
if (!socketRef.current.socket) return null; | |
return ( | |
<SocketContext.Provider value={socketRef.current.socket}>{children}</SocketContext.Provider> | |
); | |
}; | |
export { SocketProvider, SocketConsumer }; | |
export default SocketContext; |
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import React, { createContext, useContext, useEffect, useMemo } from 'react'; | |
import { Socket } from 'phoenix'; | |
import AuthContext from './AuthContext'; | |
const SocketContext = createContext<Socket>({} as Socket); | |
const SocketConsumer = SocketContext.Consumer; | |
const SocketProvider: React.FC = ({ children }) => { | |
let token = useContext(AuthContext).token!; | |
let socket = useMemo<Socket>( | |
() => new Socket(process.env.REACT_APP_SOCKET_HOST!, { params: { token } }), | |
[token] | |
); | |
useEffect(() => { | |
console.log('Socket Context :: Connect'); | |
socket.connect(); | |
return () => socket.disconnect(); | |
}, [socket]); | |
return <SocketContext.Provider value={socket}>{children}</SocketContext.Provider>; | |
}; | |
export { SocketProvider, SocketConsumer }; | |
export default SocketContext; |
This file contains hidden or bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
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import React, { createContext, useContext, useState, useEffect } from 'react'; | |
import { Socket } from 'phoenix'; | |
import AuthContext from './AuthContext'; | |
const SocketContext = createContext<Socket>({} as Socket); | |
const SocketConsumer = SocketContext.Consumer; | |
const SocketProvider: React.FC = ({ children }) => { | |
let token = useContext(AuthContext).token!; | |
let [socket, setSocket] = useState<Socket | null>(null); | |
useEffect(() => { | |
let socket = new Socket(process.env.REACT_APP_SOCKET_HOST!, { params: { token } }); | |
socket.connect(); | |
setSocket(socket); | |
return () => socket.disconnect(); | |
}, [token]); | |
if (!socket) return null; | |
return <SocketContext.Provider value={socket}>{children}</SocketContext.Provider>; | |
}; | |
export { SocketProvider, SocketConsumer }; | |
export default SocketContext; |
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