get https://api.imagerelay.com/api/v2/upload_jobs/
Once you've created a new upload job and you've began (or finished) uploading your file's chunks, you may wish to check the status of your upload file job as it is being processed.
While the upload job is still waiting for more chunks to be uploaded, it is considered to be processing. While processing, the job's finished & asset_id values will be null.
Once all file chunks have been uploaded, the upload job's finished value will be set to true and the asset_id will contain the ID for the newly created asset, which can be used on the Get File endpoint to retrieve details about the asset.