I want to create a form for non-authenticated users in CSM and implement a feature to attach files there. Since it is impossible to achieve the file attachment feature for non-authenticated users with only CSM, I am considering a method to call an external API and store the files externally.
When calling an external API, I intend to call the API from the ServiceNow instance in order to restrict the source IP. If the user's file attachment window is implemented with client-side scripting, the source IP when calling the API will not be the instance's IP, so I want to avoid this.
Please tell me how to implement it so that non-authenticated users can select files from the file attachment window and call the API from the ServiceNow instance.
