bxgateway/dist/lightGateway.js

Package for connecting to Bloxroute's gateways

"use strict";
var __importDefault = (this && this.__importDefault) || function (mod) {
    return (mod && mod.__esModule) ? mod : { "default": mod };
};
Object.defineProperty(exports, "__esModule", { value: true });
exports.LightGateway = void 0;
const ws_1 = __importDefault(require("ws"));
const bxgatewayBase_1 = __importDefault(require("./bxgatewayBase"));
const debug_1 = require("debug");
const debug = (0, debug_1.debug)('bxgateway-go');
class LightGateway extends bxgatewayBase_1.default {
    constructor(url, authKey) {
        super(debug);
        this._gw = new ws_1.default(url, {
            headers: {
                'Authorization': authKey
            },
            rejectUnauthorized: false
        });
        // Pass on
        this._gw.on('open', () => this.emit('open'));
        this._gw.on('close', () => this.emit('close'));
        this._gw.on('error', (err) => this.emit('error', err));
        // Modify default messages to be more useful
        this._gw.on('message', (msg) => {
            debug.extend('message')(msg.trim());
            const data = JSON.parse(msg);
            if (data.params)
                this.emit('message', data.params.result);
            if (data.result)
                this.emit('message', data.result);
        });
    }
    subscribe(topic, options) {
        if (!this._gw.OPEN)
            throw new Error('Websocket connection to gateway closed');
        if (topic === 'newBlocks')
            throw new Error('newBlocks subscription not implemented in bxgateway-go');
        let req = {
            id: 1,
            method: "subscribe",
            params: [
                topic,
                options
            ]
        };
        debug.extend('subscribe')(JSON.stringify(req));
        this._gw.send(JSON.stringify(req));
    }
}
exports.LightGateway = LightGateway;