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| 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 | 1x 1x 1x 1x 1x 6x 6x 6x 6x 6x 6x 6x 2x 2x 2x 2x 6x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 1x 1x 1x 1x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 6x 1x | import {ITrade, ImarketCodes, TROptionsInterface} from '../interfaces';
import {useRef, useState, useEffect} from 'react';
import {throttle} from 'lodash';
import updateQueueBuffer from '../functions/updateQueueBuffer';
import socketDataEncoder from '../functions/socketDataEncoder';
import isImarketCodes from '../functions/isImarketCodes';
/**
* useWsTrade is a custom hook that connects to a WebSocket API
* and retrieves real-time trade data for a given market code.
* @param targetMarketCodes - Array of market codes to retrieve trade data for.
* @param options - `throttle_time` the data update frequency(ms).
* @param options - `max_length_queue` Maximum number of items in data buffer.
* @throws targetMarketCodes should be React State Value, if not, unexpected errors can occur.
* @returns Object with the WebSocket object, connection status, and real-time trade data.
*/
function useWsTrade(
targetMarketCodes: ImarketCodes,
onError?: (error: Error) => void,
options: TROptionsInterface = {},
) {
const {throttle_time = 400, max_length_queue = 100, debug = false} = options;
const SOCKET_URL = 'wss://api.upbit.com/websocket/v1';
const socket = useRef<WebSocket | null>(null);
const buffer = useRef<ITrade[]>([]);
const [isConnected, setIsConnected] = useState<boolean>(false);
const [socketData, setSocketData] = useState<ITrade[]>();
const throttled = throttle(() => {
try {
const updatedBuffer = updateQueueBuffer(buffer.current, max_length_queue);
buffer.current = updatedBuffer;
setSocketData(updatedBuffer);
} catch (error) {
console.error(error);
}
}, throttle_time);
// socket 세팅
useEffect(() => {
try {
Iif (targetMarketCodes && !isImarketCodes(targetMarketCodes)) {
throw new Error(
'targetMarketCodes does not have the correct interface',
);
}
if ([targetMarketCodes].length > 0 && !socket.current) {
socket.current = new WebSocket(SOCKET_URL);
socket.current.binaryType = 'arraybuffer';
const socketOpenHandler = () => {
setIsConnected(true);
Iif (debug)
console.log('[completed connect] | socket Open Type: ', 'trade');
if (socket.current?.readyState == 1) {
const sendContent = [
{ticket: 'test'},
{
type: 'trade',
codes: [targetMarketCodes.market],
},
];
socket.current.send(JSON.stringify(sendContent));
Iif (debug) console.log('message sending done');
}
};
const socketCloseHandler = () => {
setIsConnected(false);
setSocketData([]);
buffer.current = [];
Iif (debug) console.log('connection closed');
};
const socketErrorHandler = (event: Event) => {
const error = (event as ErrorEvent).error as Error;
console.error('[Error]', error);
};
const socketMessageHandler = (evt: MessageEvent<ArrayBuffer>) => {
const data = socketDataEncoder<ITrade>(evt.data);
data && buffer.current.push(data);
throttled();
};
socket.current.onopen = socketOpenHandler;
socket.current.onclose = socketCloseHandler;
socket.current.onerror = socketErrorHandler;
socket.current.onmessage = socketMessageHandler;
}
return () => {
if (socket.current) {
if (socket.current.readyState != 0) {
socket.current.close();
socket.current = null;
}
}
};
} catch (error) {
Iif (error instanceof Error) {
if (onError) {
onError(error);
} else {
console.error(error);
throw error;
}
}
}
}, [targetMarketCodes]);
return {socket: socket.current, isConnected, socketData};
}
export default useWsTrade;
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