Create Or Update Attachment

This API operation allows you to create a new attachment or update an existing attachment for a specific Confluence page or blog post identified by its content ID. When uploading a file, you must use multipart/form-data encoding and include the file in the request body along with optional metadata such as comments or minor edit flags. If an attachment with the same filename already exists, this operation will create a new version of that attachment rather than replacing it entirely, maintaini...