verusd-web/dist/lib/WsServer.js

A Verus Blockchain library that enables a bi-directional communication with the Verus and other Verus PBaas chains.

"use strict";
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var __importStar = (this && this.__importStar) || (function () {
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        __setModuleDefault(result, mod);
        return result;
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})();
Object.defineProperty(exports, "__esModule", { value: true });
exports.WsServer = void 0;
const ws_1 = __importStar(require("ws"));
class WsServer {
    constructor(config = {
        noServer: true,
        perMessageDeflate: {
            zlibDeflateOptions: {
                chunkSize: 1024,
                memLevel: 7,
                level: 3
            },
            zlibInflateOptions: {
                chunkSize: 10 * 1024
            },
            clientNoContextTakeover: true,
            serverNoContextTakeover: true,
            serverMaxWindowBits: 10,
            concurrencyLimit: 10,
            threshold: 1024
        }
    }) {
        this.defaultEventsConfig = {
            intervalCheckInSec: 30000
        };
        this.config = config;
    }
    get socket() { return this.wss; }
    open() {
        this.wss = new ws_1.WebSocketServer(this.config);
        console.log("WS Server started ...");
        return this;
    }
    close() {
        try {
            this.wss.clients.forEach(function each(client) { client.close(); });
            this.wss.close();
            return true;
        }
        catch (e) {
            return false;
        }
    }
    receive() {
        if (this.wss === undefined) {
            throw new Error('WebSocket Server is not running.');
        }
        ;
        const wss = this.wss;
        const connectionCheckerInterval = this.connectionCheckerInterval;
        wss.on('close', function () {
            if (connectionCheckerInterval != null) {
                clearInterval(connectionCheckerInterval);
            }
        });
        this.connectionCheckerInterval = setInterval(function () {
            wss.clients.forEach(function each(ws) {
                if (ws.readyState !== ws_1.default.OPEN) {
                    return ws.terminate();
                }
            });
        }, this.defaultEventsConfig.intervalCheckInSec);
    }
    send(payload) {
        if (this.wss === undefined) {
            throw new Error('WebSocket Server is not running.');
        }
        ;
        var clientsCount = 0;
        var dcClientsCount = 0;
        this.wss.clients.forEach(function each(client) {
            if (client.readyState === ws_1.default.OPEN) {
                clientsCount += 1;
                client.send(JSON.stringify(payload));
            }
            else {
                dcClientsCount += 1;
                client.close();
            }
        });
    }
}
exports.WsServer = WsServer;
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