excerpt of code for sth

   "watchPage": (page, expiry, callback) => {
        // https://www.mediawiki.org/wiki/API:Watch
        // MediawikiJS api
        const expireParam = expiry == 0 ? { unwatch: true } : { expiry: expiry };
        new mw.Api().postWithToken('watch', { action: 'watch', titles: page, format: 'json', ...expireParam }).done((data) => {
            if (data.errors == null || data.errors.length < 1) {
                callback(true);
            } else {
                console.error(data);
                callback(false);
            }
        }).fail(() => {
            console.log("fail received") /* when testing i saw this logged */
            callback(false)
        });
    }