@aimee-blue/ab-service-kit/lib/shared/sockets/logSocketStats.js

Aimee Blue Service Template

"use strict";

Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.logSocketStats = logSocketStats;

var _rxjs = require("rxjs");

var _operators = require("rxjs/operators");

var _os = require("os");

var _time = require("../time");

var _helpers = require("./helpers");

var _logging = require("../logging");

function logSocketStats(logger, data) {
  const numberOfMessages = data.pipe((0, _operators.filter)(_helpers.isString), (0, _operators.map)((_, i) => i + 1), (0, _operators.startWith)(0));
  const bytesReceived = data.pipe((0, _operators.filter)(_helpers.isBuffer), (0, _operators.scan)((sum, item) => item.byteLength + sum, 0), (0, _operators.startWith)(0));
  const stats = (0, _rxjs.combineLatest)(numberOfMessages, bytesReceived).pipe((0, _operators.map)(([msgs, bytes]) => ({
    bytesReceived: bytes,
    numberOfMessages: msgs,
    timestamp: (0, _time.localNow)()
  })), (0, _logging.logEvents)({
    prefix: `${_os.EOL}🔃  Connection stats`,
    suffix: [_os.EOL],
    on: ['audit', 'unsubscribe'],
    logger,
    unsubscribe: {
      prefix: `${_os.EOL}🔃  Connection stats upon closure`
    }
  }), (0, _operators.ignoreElements)());
  return stats;
}
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