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Trello API cover color... is Trello's API color blind?

I'm struggling to properly form an API call to change the cover color for a card.  I posted the approach I'm taking in StackOverflow as well here.

I suspect I have a problem of proper formation of the PUT request.  I've tried it in my Python code, using Postman, and using a simple cURL command, all with similar results.  Here's the basic form that I have tried:

Except when I make a gross syntax error, the API returns a JSON that simply returns the current color of the card's cover (and a lot of other attributes of the card).  The color of the cover does not actually change.   I asked for pink and I got confirmation of green:

Screenshot 2021-01-27 075916.png

Is there a chance the Trello API is color blind?  ;-)

For those looking for it, the capability is documented in the API and discussed here.



Any hints about how to properly form this request?



1 answer

0 votes

I think it’s because you actually need to PUT the JSON in the body of your request. You are appending it to the query string like it’s a GET but you need to specify the content-type text/JSON and actually  send the JSON payload in the body of the request (I think). 

OK.  You were right.  Here is the syntax for those who need it:


curl -H 'Content-Type: application/json' -X PUT -d '{"cover" : {"color":"pink"}}'


If you're doing it in python with the urllib3 library, it owuld be this:

            params = {"cover" : {"color":"pink"}}
            #got the id, now send the message to color it pink            result = http.request(                "PUT"                "" + new_card_id + "?key=" + trello_api_key + "&token=" + trello_token,                 body=json.dumps(params),                headers={'Content-Type''application/json'}                )

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