geteventstore-promise2/dist/httpClient/getAllStreamEvents.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 _flattenArray = _interopRequireDefault(require("../utilities/flattenArray"));

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

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

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

var _axios = _interopRequireDefault(require("axios"));

var debug = (0, _debug["default"])('geteventstore:getAllStreamEvents');
var baseErr = 'Get All Stream Events - ';

var buildOptions = function buildOptions(config, streamName, startPosition, chunkSize, resolveLinkTos, embed) {
  return {
    url: "".concat(config.baseUrl, "/streams/").concat(streamName, "/").concat(startPosition, "/forward/").concat(chunkSize),
    method: 'GET',
    headers: {
      "Content-Type": "application/vnd.eventstore.events+json",
      "ES-ResolveLinkTos": resolveLinkTos.toString()
    },
    params: {
      embed: embed
    },
    timeout: config.timeout
  };
};

var _default = function _default(config) {
  return (
    /*#__PURE__*/
    function () {
      var _ref = (0, _asyncToGenerator2["default"])(
      /*#__PURE__*/
      _regenerator["default"].mark(function _callee2(streamName, chunkSize, startPosition, resolveLinkTos) {
        var embed,
            events,
            getNextChunk,
            _args2 = arguments;
        return _regenerator["default"].wrap(function _callee2$(_context2) {
          while (1) {
            switch (_context2.prev = _context2.next) {
              case 0:
                embed = _args2.length > 4 && _args2[4] !== undefined ? _args2[4] : 'body';
                (0, _assert["default"])(streamName, "".concat(baseErr, "Stream Name not provided"));
                startPosition = startPosition || 0;
                chunkSize = chunkSize || 1000;
                resolveLinkTos = resolveLinkTos === undefined ? true : resolveLinkTos;

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

                events = [];

                getNextChunk =
                /*#__PURE__*/
                function () {
                  var _ref2 = (0, _asyncToGenerator2["default"])(
                  /*#__PURE__*/
                  _regenerator["default"].mark(function _callee() {
                    var options, response, totalEntries, i;
                    return _regenerator["default"].wrap(function _callee$(_context) {
                      while (1) {
                        switch (_context.prev = _context.next) {
                          case 0:
                            options = buildOptions(config, streamName, startPosition, chunkSize, resolveLinkTos, embed);
                            _context.next = 3;
                            return (0, _axios["default"])(options);

                          case 3:
                            response = _context.sent;
                            debug('', 'Result: %j', response.data);

                            if (embed === 'body') {
                              totalEntries = response.data.entries.length;

                              for (i = 0; i < totalEntries; i++) {
                                if (response.data.entries[i].data) response.data.entries[i].data = JSON.parse(response.data.entries[i].data);
                              }
                            }

                            events.push(response.data.entries.reverse());

                            if (!(response.data.headOfStream === true)) {
                              _context.next = 9;
                              break;
                            }

                            return _context.abrupt("return", (0, _mapEvents["default"])((0, _flattenArray["default"])(events)));

                          case 9:
                            startPosition += chunkSize;
                            return _context.abrupt("return", getNextChunk());

                          case 11:
                          case "end":
                            return _context.stop();
                        }
                      }
                    }, _callee);
                  }));

                  return function getNextChunk() {
                    return _ref2.apply(this, arguments);
                  };
                }();

                return _context2.abrupt("return", getNextChunk());

              case 9:
              case "end":
                return _context2.stop();
            }
          }
        }, _callee2);
      }));

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

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