5th iPaas Puzzle: Design your Advent Calendar API (or fun 2023 Calendar API)

Don’t we all love a little puzzle, even more if it helps us keep our webMethods skills sharp?! This time, we propose to develop an Advent Calendar API – but for sure, the core concept of this puzzle can be adapted to work for various holidays & cultural backgrounds!


A traditional Advent Calendar offers 24 small gifts or tokens to count down the days in December before Christmas. The first picture shows a paper Advent Calendar like my mother had one when she was a child more than 75 years ago. It has flaps covering each day’s picture. The second picture shows my kids’ Advent Calendar, which are 24 decorated fabric pockets (in this case only three of them), that I fill with small gifts & candy each year. We hang them on a garland of fir sprigs.


Your Advent Calendar API should provide a different token/gift, e.g. (the link to) a song, joke, story, etc. every day starting from December 1st to December 24th. Alternatively, you could implement a 2023 Calendar API, which provides a different token/gift every month in 2023. Or come up with your very own adaptation of the idea for your favorite holiday!

Stretch Goal

Customize your Advent Calendar API to cater different users with different tokens, like I do with my kids’ Advent Calendar :slight_smile: both my kids get their very special gifts, e.g. toy horses for my daughter and Mangas for my son (not every day in December, I am no Croesus, though).


Please post your solution to the puzzle as replies to this thread.
Use the “blur spoiler” tag to hide your results so that folks must click on your solution to indicate they want to see it!


iPaaS Puzzle Show Friday 16th of December!

Every third Friday for the next couple of weeks, we are hosting an iPaaS Puzzle Show.

We will briefly talk about the different solutions for this week’s puzzle, what to learn from them, and introduce next week’s iPaaS Puzzle. Hope you can join us.

The 5th iPaaS Puzzle Show will be in on Friday the 16th of December 8am CEST! and 5pm CEST! Details to come!


The sooner you publish your solution, the better. But just make sure you have your solution posted before the iPaaS Puzzle Show on 16th of December at 8am CEST. If you want to be invited on the show, please post your solution by Thursday 15th of December at 8am CEST.


The winners get fame and glory. We want this to be a friendly competition and we want to highlight great work, without having to crown a winner.

Suggest a Puzzle

If you have another great idea for an iPaaS Puzzle, please suggest it in this form . It should be a little challenge that is doable within a week and has easy access to the source data needed. If your challenge is geared towards improving our lives, then even better!

If your iPaaS Puzzle suggestion does get selected, we’d invite you to personally introduce it in our iPaaS Puzzle Show and you will receive a wooden Tangram game as a token of our appreciation.


The actual prize may look differently!