@aws-amplify/analytics
Version:
Analytics category of aws-amplify
49 lines (46 loc) • 2 kB
JavaScript
import { Cache } from '@aws-amplify/core';
import { amplifyUuid, isBrowser } from '@aws-amplify/core/internals/utils';
// Copyright Amazon.com, Inc. or its affiliates. All Rights Reserved.
// SPDX-License-Identifier: Apache-2.0
const PERSONALIZE_CACHE_USERID = '_awsct_uid';
const PERSONALIZE_CACHE_SESSIONID = '_awsct_sid';
const DEFAULT_CACHE_PREFIX = 'personalize';
const DELIMITER = '.';
const CACHE_EXPIRY_IN_DAYS = 7;
const normalize = (key) => [key, isBrowser() ? window.location.host : DEFAULT_CACHE_PREFIX].join(DELIMITER);
const getCache = (key) => Cache.getItem(normalize(key));
const setCache = (key, value) => {
const expiredAt = new Date(Date.now() + 3600000 * 24 * CACHE_EXPIRY_IN_DAYS);
Cache.setItem(normalize(key), value, {
expires: expiredAt.getTime(),
});
};
const resolveCachedSession = async () => {
let sessionId = await getCache(PERSONALIZE_CACHE_SESSIONID);
if (!sessionId) {
sessionId = amplifyUuid();
setCache(PERSONALIZE_CACHE_SESSIONID, sessionId);
}
const userId = await getCache(PERSONALIZE_CACHE_USERID);
return {
sessionId,
userId,
};
};
const updateCachedSession = (newUserId, currentSessionId, currentUserId) => {
const isNoCachedSession = !currentSessionId;
const isSignOutCase = !newUserId && !currentUserId;
const isSwitchUserCase = !!newUserId && !!currentUserId && newUserId !== currentUserId;
const isRequireNewSession = isNoCachedSession || isSignOutCase || isSwitchUserCase;
const isRequireUpdateSession = !!currentSessionId && !currentUserId && !!newUserId;
if (isRequireNewSession) {
const newSessionId = amplifyUuid();
setCache(PERSONALIZE_CACHE_SESSIONID, newSessionId);
setCache(PERSONALIZE_CACHE_USERID, newUserId);
}
else if (isRequireUpdateSession) {
setCache(PERSONALIZE_CACHE_USERID, newUserId);
}
};
export { resolveCachedSession, updateCachedSession };
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