Frontend (Custom element) 1. Add the Base64 Uploader element to the page.
2. Trigger the action "Upload a file".
- base64: The encoded base64 data of your file.
- File name: The name of the file.
3. When upload is completed, the event "file is uploaded" will be triggered and you can get the URL from the exposed state "url".

Backend workflow (Server action)
1. Trigger the action "Base64 Uploader - Upload a file in backend".
- Website home URL: Select dynamic expression "Website home URL".
- base64: The encoded base64 data of your file.
- File name: The name of the file.
2. Get the URL from the result.