upstox-js-sdk/dist/feeder/PortfolioDataFeeder.js

The official Node Js client for communicating with the Upstox API

"use strict";

Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.PortfolioDataFeeder = void 0;
var _ws = _interopRequireDefault(require("ws"));
var _ApiClient = require("../ApiClient");
var _Feeder = _interopRequireDefault(require("./Feeder"));
function _interopRequireDefault(e) { return e && e.__esModule ? e : { default: e }; }
function _defineProperty(e, r, t) { return (r = _toPropertyKey(r)) in e ? Object.defineProperty(e, r, { value: t, enumerable: !0, configurable: !0, writable: !0 }) : e[r] = t, e; }
function _toPropertyKey(t) { var i = _toPrimitive(t, "string"); return "symbol" == typeof i ? i : i + ""; }
function _toPrimitive(t, r) { if ("object" != typeof t || !t) return t; var e = t[Symbol.toPrimitive]; if (void 0 !== e) { var i = e.call(t, r || "default"); if ("object" != typeof i) return i; throw new TypeError("@@toPrimitive must return a primitive value."); } return ("string" === r ? String : Number)(t); }
class PortfolioDataFeeder extends _Feeder.default {
  constructor() {
    super();
    _defineProperty(this, "ws", null);
    _defineProperty(this, "userClosedWebSocket", false);
    _defineProperty(this, "closingCode", -1);
    this.apiClient = _ApiClient.ApiClient.instance;
  }
  async connect(orderUpdate = true, positionUpdate = false, holdingUpdate = false, gttUpdate = false) {
    // Skip if its already connected
    if (this.ws && (this.ws.readyState == ws.CONNECTING || ws.readyState == ws.OPEN)) return;
    let wsUrl = this.getWebSocketUrl(orderUpdate, positionUpdate, holdingUpdate, gttUpdate);
    this.ws = await this.connectWebSocket(wsUrl, this.apiClient.authentications["OAUTH2"].accessToken);
    this.onOpen();
    this.onMessage();
    this.onClose();
    this.onError();
  }
  shouldReconnect() {
    return this.ws === null || !this.userClosedWebSocket && this.ws.readyState !== _ws.default.OPEN;
  }
  onOpen() {
    this.ws.on("open", () => {
      this.emit("open");
    });
  }
  onMessage() {
    this.ws.on("message", data => {
      this.push(data);
    });
  }
  onClose() {
    this.ws.on("close", code => {
      this.push(null);
      this.closingCode = code;
      if (code === 1000) {
        this.userClosedWebSocket = true;
      }
    });
  }
  onError() {
    this.ws.on("error", e => {
      this.emit("error", e);
    });
  }
  disconnect() {
    this.ws.close(1000);
  }

  // Function to establish WebSocket connection
  async connectWebSocket(wsUrl, accessToken) {
    return new Promise(resolve => {
      const ws = new _ws.default(wsUrl, {
        headers: {
          Authorization: `Bearer ${accessToken}`
        },
        followRedirects: true
      });
      resolve(ws);
    });
  }
  getWebSocketUrl(orderUpdate, positionUpdate, holdingUpdate, gttUpdate) {
    let wsUrl = "wss://api.upstox.com/v2/feed/portfolio-stream-feed";
    let updateTypes = [];
    if (orderUpdate) {
      updateTypes.push("order");
    }
    if (holdingUpdate) {
      updateTypes.push("holding");
    }
    if (positionUpdate) {
      updateTypes.push("position");
    }
    if (gttUpdate) {
      updateTypes.push("gtt_order");
    }
    if (updateTypes.length >= 1) {
      wsUrl += "?update_types=";
    }
    for (let i = 0; i < updateTypes.length - 1; i++) {
      wsUrl += updateTypes[i] + "%2C";
    }
    if (updateTypes.length >= 1) {
      wsUrl += updateTypes[updateTypes.length - 1];
    }
    return wsUrl;
  }
}
exports.PortfolioDataFeeder = PortfolioDataFeeder;