Please help me send a picture to Cloudinary. How can I do this?
Hi yashar-2009, welcome to Thunkable! 
Be sure to check out How to ask Great Questions v2.0, the Community Guidelines, and our Getting Started Guide to make the best of your Thunkable Community experience!
As for your current setup, the “URL from uploaded file” block should upload the selected file to Cloudinary already. Unless you have a particular reason for using the API, I would recommend following the steps here to connect your Thunkable app to Cloudinary to easily upload images.
Unfortunately, Thunkable doesn’t support video upload to cloudinary in android. So I would love to know how to do this using the webapi instead.
Hi, thank you again for your patience. I would like to let you know that we have now officially released a fix for this bug.
Please keep in mind that you may need to do a hard refresh of your browser for the changes to take effect in your project. If this issue is present on the Thunkable Live app, you will want to update that through the App Store and/or Google Play Store before any changes will occur. If your downloaded or published app is affected by this bug, you will need to re-download or re-publish your app for these changes to take effect.