tardis-dev/dist/realtimefeeds/binanceoptions.js

Convenient access to tick-level historical and real-time cryptocurrency market data via Node.js

"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
exports.BinanceOptionsRealTimeFeed = void 0;
const realtimefeed_1 = require("./realtimefeed");
class BinanceOptionsRealTimeFeed extends realtimefeed_1.RealTimeFeedBase {
    wssURL = 'wss://vstream.binance.com/stream';
    httpURL = 'https://vapi.binance.com/vapi/v1';
    mapToSubscribeMessages(filters) {
        const payload = filters.map((filter, index) => {
            if (!filter.symbols || filter.symbols.length === 0) {
                throw new Error('BinanceOptionsRealTimeFeed requires explicitly specified symbols when subscribing to live feed');
            }
            return {
                method: 'SUBSCRIBE',
                params: filter.symbols.map((symbol) => `${symbol}@${filter.channel}`),
                id: index + 1
            };
        });
        const noBinary = {
            method: 'BINARY',
            params: ['false'],
            id: 0
        };
        return [noBinary, ...payload];
    }
    messageIsError(message) {
        if (message.data !== undefined && message.data.e === 'error') {
            return true;
        }
        return false;
    }
}
exports.BinanceOptionsRealTimeFeed = BinanceOptionsRealTimeFeed;
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