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index.js
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index.js
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'use strict';
const expireModes = {
in: 'expires_in',
at: 'expires_at',
};
const tokenDefaultOptions = {
expireMode: expireModes.in,
dateFormat: 'iso',
expired: false,
};
/**
* Either generates a past or future date depending on the `expired` argument
* @param {Chance} chance
* @param {Boolean} expired Indicates if the generated date should be expired
*/
const getExpirationDate = (chance, expired) => {
const factor = 5;
const millisecondsOffset = chance.second() * factor * 1000;
if (expired) {
return new Date(Date.now() - millisecondsOffset);
}
return new Date(Date.now() + millisecondsOffset);
};
module.exports = function accessToken(options = {}) {
const opts = Object.assign({}, tokenDefaultOptions, options);
const baseAccessToken = {
access_token: this.guid(),
refresh_token: this.guid(),
token_type: 'bearer',
};
if (opts.expireMode === expireModes.in) {
const secondsToExpire = this.minute() * 60;
return Object.assign({}, baseAccessToken, {
expires_in: secondsToExpire,
});
}
if (opts.expireMode === expireModes.at) {
const expirationDateValue = getExpirationDate(this, opts.expired);
let expirationDate;
switch (opts.dateFormat) {
case 'date':
expirationDate = expirationDateValue;
break;
case 'unix':
expirationDate = Math.round(expirationDateValue.getTime() / 1000);
break;
case 'iso':
default:
expirationDate = expirationDateValue.toISOString();
break;
}
return Object.assign({}, baseAccessToken, {
expires_at: expirationDate,
});
}
return baseAccessToken;
};