curl -X POST \
-H 'content-type: multipart/form-data; boundary=----WebKitFormBoundary7MA4YWxkTrZu0gW' \
-F apikey=1ee6127ff93882de82599eacc2668023 \
-F 'editor_settings={'\''language'\'':'\''en'\''}' \
-F 'permissions={'\''document.export'\'':true,'\''document.print'\'':true,'\''document.edit'\'':true}' \
-F 'callback_settings={'\''save_format'\'':'\''pptx'\'','\''context_info'\'':'\''doc or user info'\'','\''save_url'\'':'\''https://zylker.com/save.php/'/''}' \ -F 'document_info={'\''document_name'\'':'\''My Presentation'\'', '\''document_id'\'': 10054809}' \
-F 'user_info={'\''user_id'\'':'\''1000'\'','\''display_name'\'':'\''James'\''}'