Convert list from API response to string and pass as variable to different API call

Hello, I am new to Flutterflow and seem to be stuck on a problem.

I am receiving a list<string> from an API call which needs to be passed as a string variable to another API call. I have validated the following:

  1. I am getting a response from the first API call as a list<string> successfully.

  2. The second API call responds successfully if I pass a string variable in the post request json body, but not if it is a list<string>

I have no clue how to do this conversion or where to store it in between when the conversion is taking place.

Can someone kindly list detailed steps on how to achieve this, I would be very grateful. Thanks!

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