What's changed?
Add attachment
api/v3/{entity_name}/upload (POST Http method) - This API can be used to upload a file. The ID from the resulting response data can be sent as an input for the entity's add/edit operation for associating the uploaded file as an attachment.
api/v3/{entity_name}/{id}/upload (PUT Http method) - This API can be used to upload as well as associate the uploaded file as attachment to the respective entity.
Get all attachments
api/v3/{entity_name}/{id}/attachments - This API can be used to get all attachments.
Delete an attachment
api/v3/{entity_name}/{id}/attachments/{attachment_id} - This API can be used to delete a file attachment.
Download attachment
api/v3/{entity_name}/{id}/attachments/{attachment_id}/download - This API can be used to download a single attachment.