tardis-dev/dist/realtimefeeds/poloniex.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.PoloniexRealTimeFeed = void 0;
const realtimefeed_1 = require("./realtimefeed");
class PoloniexRealTimeFeed extends realtimefeed_1.RealTimeFeedBase {
    constructor() {
        super(...arguments);
        this.wssURL = 'wss://ws.poloniex.com/ws/public';
        this.sendCustomPing = () => {
            this.send({
                event: 'ping'
            });
        };
    }
    mapToSubscribeMessages(filters) {
        return filters.flatMap((filter) => {
            if (!filter.symbols || filter.symbols.length === 0) {
                throw new Error('PoloniexRealTimeFeed requires explicitly specified symbols when subscribing to live feed');
            }
            return {
                event: 'subscribe',
                channel: [filter.channel],
                symbols: filter.symbols
            };
        });
    }
    messageIsHeartbeat(msg) {
        return msg.event === 'pong';
    }
    messageIsError(message) {
        return message.event === 'error';
    }
}
exports.PoloniexRealTimeFeed = PoloniexRealTimeFeed;
//# sourceMappingURL=poloniex.js.map