memo-storage/lib/services/index.js

Storage based cache service

"use strict";

Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.generateHash = exports.parse = exports.createExpirationDate = exports.createKey = exports.isExpired = void 0;

var getKey = function getKey(parameters) {
  var key = parameters.key,
      method = parameters.method;
  return key || method && method.name || '';
};

var isExpired = function isExpired() {
  var expire = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : 0;
  return Date.now() > expire;
};

exports.isExpired = isExpired;

var createKey = function createKey(parameters) {
  return "".concat(getKey(parameters), "#").concat(generateHash(parameters.params));
};

exports.createKey = createKey;

var createExpirationDate = function createExpirationDate() {
  var expire = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : 0;
  return Date.now() + expire;
};

exports.createExpirationDate = createExpirationDate;

var parse = function parse(response, cb) {
  if (cb) return cb(response);
  return response;
};

exports.parse = parse;

var generateHash = function generateHash(params) {
  var hash = 0;
  var string = JSON.stringify(params) || '';

  if (string.length) {
    var i, l, _char;

    for (i = 0, l = string.length; i < l; i++) {
      _char = string.charCodeAt(i);
      hash = (hash << 5) - hash + _char;
      hash = hash | 0;
    }
  }

  return hash;
};

exports.generateHash = generateHash;