madisonmlin opened a new issue, #3734: URL: https://github.com/apache/texera/issues/3734
_This issue was raised with PR #3728._ ***Issue*** This issue re-addresses part of a larger issue, #3404, which describes how the download of workflow results and datasets (both single-file and multi-file downloads) does not trigger any progress indicator by the browser. This issue specifically addresses the lack of progress indicator for **single-file workflow result downloads**. Absence of a progress indicator means that, for large files, users see no feedback about the download progress until the file suddenly finishes downloading. This creates poor user experience because it causes uncertainty about the download status. When the browser handles a file download, its download UI is displayed, including a progress bar to indicate download progress. If this download UI is not displayed, it means that the browser is not handling the download. In this case, Angular's `HttpClient` makes the request for the file to be downloaded to JavaScript memory as a `Blob`, then writes the `Blob` into the local filesystem. ***Fix*** To switch downloads for single-file workflow results specifically to use browser downloads, we use a standard HTML form submission to request the result file, allowing the browser to handle the download. The backend logic for generating the file stream remains the same. Headers such as Authorization (used for Bearer tokens) cannot be added to standard form submissions. To work around this, the frontend first requests a JWT token string and includes it in the form data. The backend authenticates the request by decoding the JWT-- which contains the download parameters-- and verifying that the user has a valid role. -- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. To unsubscribe, e-mail: dev-unsubscr...@texera.apache.org.apache.org For queries about this service, please contact Infrastructure at: us...@infra.apache.org
