Check Berlin City Tour ticket availability for a date
Input
date requiredThe travel date to check, as YYYY-MM-DD.
nearbyDays optionalHow many days either side of the date to report as alternatives.
Default: 7packageGroupId optionalThe product to check. 1137 is the Hop-on Hop-off Classic tour 24h.
Default: 1137Output
date requiredslots requiredprices requiredavailable requiredoffer_hash requiredpackageGroupId requirednearbyAvailableDates requiredreason optionalWhy the date is not bookable, when the shop said.
currency optionalproductName optionalFAQ
Add a Berlin City Tour ticket to the basket for a date
Puts tickets for one travel date into the Berlin City Tour basket and returns the basket contents it created. Takes the guest counts per price category, as check_availability reports them, and the offer_hash from that same check. Before it writes anything it re-reads what the shop sells on that date and recomputes the hash: if the date, the timeslots or the prices have moved since the check, it adds nothing and refuses with what the shop shows now, so the caller can confirm the new offer and retry. It also refuses a date the shop does not sell, a guest category the product does not offer, and a request for more guests than the remaining capacity. The basket lives in the browser, so the cartPackageGroupId it returns is what the later booking steps work from.
Remove a line from the Berlin City Tour basket
Takes one line out of a Berlin City Tour basket, using the cartId and cartPackageGroupId that add_to_cart returned, and reports what the basket holds afterwards. This is the counterpart to add_to_cart: because the shop merges repeated adds for one travel date into a single line, a run that was retried leaves more guests on that date than intended, and this is how that is undone. It refuses when the basket has no such line, and it checks the line is really gone before reporting success rather than trusting the request it sent.