How to implement Acyba subscription with double opt-in in Chronoforms registration form

Hi there,
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im on looking for solution to implement a checkbox to subscribe Acyba Newsletter with double opt-in into Chronoforms6 Registration form on latest Joomla. Unfortunately all topics i found was related to very old versions of both software.
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Any help is appreciated.
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Thanks in Advance
Alex

First, is there a way to add subscribers to acyba using curl ? if there is then Chronoforms can do that!
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2nd, how do you want the "double opt in" to work ?

Tanks for answer,
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i never did it before with CURL, but actualy it should work, as i read in other topics. I was just curios how exactly to implement this with Chronoforms6.
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With double opt-in i mean, that user have to confirm his mail before his subsciption get active. But this should work, since acyba support this process by default, so i guess also with CURL solution.
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Thanks
Alex

I'm not sure where to find information on the integration of acymailing with other components using CURL, do you have this info ?

I did posted similar topic on acyba forum. Let see what answers ill get.. Ill post then in there. Thanks, Alex

I found this:
https://docs.acymailing.com/setup/subscription-to-your-lists/external-subscription
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so you will need to set the curl action url to:

https://www.example.com/index.php?option=com_acym&ctrl=frontusers&task=subscribe&hiddenlists=1,3&user[email]=email@example.com

and you will need to replace the 1,3 values by your lists ids and the email by {data:email_field_name}