geteventstore-promise2/dist/tcpClient/readEvents.js

GetEventStore client wrapper using promises

"use strict";

var _interopRequireDefault = require("@babel/runtime/helpers/interopRequireDefault");

Object.defineProperty(exports, "__esModule", {
  value: true
});
exports["default"] = void 0;

var _regenerator = _interopRequireDefault(require("@babel/runtime/regenerator"));

var _asyncToGenerator2 = _interopRequireDefault(require("@babel/runtime/helpers/asyncToGenerator"));

var _connectionManager = _interopRequireDefault(require("./connectionManager"));

var _mapEvents = _interopRequireDefault(require("./utilities/mapEvents"));

var _debug = _interopRequireDefault(require("debug"));

var _assert = _interopRequireDefault(require("assert"));

var debug = (0, _debug["default"])('geteventstore:readEvents');
var baseErr = 'Read Events - ';

var _default = function _default(config, direction) {
  return (
    /*#__PURE__*/
    function () {
      var _ref = (0, _asyncToGenerator2["default"])(
      /*#__PURE__*/
      _regenerator["default"].mark(function _callee(streamName, startPosition, count, resolveLinkTos) {
        var connection, handleResult;
        return _regenerator["default"].wrap(function _callee$(_context) {
          while (1) {
            switch (_context.prev = _context.next) {
              case 0:
                handleResult = function _ref2(readResult) {
                  debug('', 'Result: %j', readResult);
                  if (readResult.error) throw new Error(readResult.error);
                  var result = {};

                  for (var key in readResult) {
                    if (result.key !== 'events') result[key] = readResult[key];
                  }

                  result.events = (0, _mapEvents["default"])(readResult.events);
                  return result;
                };

                (0, _assert["default"])(streamName, "".concat(baseErr, "Stream Name not provided"));
                direction = direction || 'forward';
                startPosition = startPosition === undefined && direction === 'backward' ? -1 : startPosition || 0;
                count = count || 1000;
                resolveLinkTos = resolveLinkTos === undefined ? true : resolveLinkTos;

                if (count > 4096) {
                  console.warn('WARNING: Max event count exceeded. Using the max of 4096');
                  count = 4096;
                }

                _context.next = 9;
                return _connectionManager["default"].create(config);

              case 9:
                connection = _context.sent;
                _context.prev = 10;

                if (!(direction === 'forward')) {
                  _context.next = 15;
                  break;
                }

                _context.next = 14;
                return connection.readStreamEventsForward(streamName, startPosition, count, resolveLinkTos, config.credentials).then(handleResult);

              case 14:
                return _context.abrupt("return", _context.sent);

              case 15:
                _context.next = 17;
                return connection.readStreamEventsBackward(streamName, startPosition, count, resolveLinkTos, config.credentials).then(handleResult);

              case 17:
                return _context.abrupt("return", _context.sent);

              case 20:
                _context.prev = 20;
                _context.t0 = _context["catch"](10);
                throw _context.t0;

              case 23:
                _context.prev = 23;
                connection.releaseConnection();
                return _context.finish(23);

              case 26:
              case "end":
                return _context.stop();
            }
          }
        }, _callee, null, [[10, 20, 23, 26]]);
      }));

      return function (_x, _x2, _x3, _x4) {
        return _ref.apply(this, arguments);
      };
    }()
  );
};

exports["default"] = _default;
module.exports = exports.default;