@twurple/auth/lib/AccessToken.js

Authenticate with Twitch and stop caring about refreshing tokens.

import { mapNullable } from '@d-fischer/shared-utils';
// one minute
const EXPIRY_GRACE_PERIOD = 60000;
function getExpiryMillis(token) {
    return mapNullable(token.expiresIn, _ => token.obtainmentTimestamp + _ * 1000 - EXPIRY_GRACE_PERIOD);
}
/**
 * Calculates the date when the access token will expire.
 *
 * A one-minute grace period is applied for smooth handling of API latency.
 *
 * May be `null`, in which case the token does not expire.
 * This can only be the case with very old Client IDs.
 *
 * @param token The access token.
 */
export function getExpiryDateOfAccessToken(token) {
    return mapNullable(getExpiryMillis(token), _ => new Date(_));
}
/**
 * Calculates whether the given access token is expired.
 *
 * A one-minute grace period is applied for smooth handling of API latency.
 *
 * @param token The access token.
 */
export function accessTokenIsExpired(token) {
    return mapNullable(getExpiryMillis(token), _ => Date.now() > _) ?? false;
}