How to create a webhook?

[Vasyl Kalymun]

Hello. I want to integrate Trello with google sheet, but the required data is not passed. How to transfer data from "Description" to the table?

[Iain Dooley]

@Vasyl Kalymun the trouble with creating webhooks from Trello to a Google Sheet is that Trello sends a "HEAD" request to test whether the URL is live, and if it fails then assumes it's not live and it won't send any subsequent notifications. Google Scripts published as web apps don't respond to HEAD requests, so it always fails.

Also, even if you get it working (and there is a hacky kind of workaround to doing it) Google Apps Script can only sustain about 5 concurrent connections before it spits the dummy and stops working, and Trello sends MANY notifications to webhooks, especially at the board level.

The way I deal with this is to put a buffer in between Trello and Google, with this nginx template:

https://github.com/iaindooley/trellinator-buffer/blob/master/nginx_template.txt

which writes the job to a local beanstalkd queue if it's not a HEAD request. You can set up your own Trellinator buffer, but you can also just use mine by setting up Trellinator from the following tutorial which uses my own buffer out of the box -- this will mean you don't have to worry about the webhooks and so on, and will give you a head start on coding because Trellinator has a large library of functions you can use to interact with Trello:

https://community.atlassian.com/t5/Marketplace-Apps-Integrations/Introducing-Trellinator-Automate-Trello-with-Google-Apps-Script/ba-p/925271

You can see thousands of examples here:

https://gist.github.com/iaindooley

and full API documentation here:

http://docs.trellinator.com/

[Vero Rivas]

Hi @Vasyl Kalymun 

   Look at this post, maybe can help you:

   https://developer.atlassian.com/cloud/trello/guides/rest-api/webhooks/

Cheers

[Vasyl Kalymun]

Thank you very much, interesting information.
Maybe you know free services where you can download contacts from trello to store a database of contacts?