Exporting selected records in json to website

MollyEskelson_H-GAC

Followed these instruction to export selected records to json: https://support.esri.com/en-us/knowledge-base/problem-the-option-to-export-data-from-widgets-is-unava-000027981#:~:text=Enable%20the%20Allow%20export%20option,

This method exports the selected records as a Json download file but we want to stream line things and just have it sent to our website form.

Wanted to know if possible/how to create a custom button to export the json to an external website. We want to reduce user error when we get requests. 

Open to using ExB developer.