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Sounds like this would be a feature on the HTTP client side?

@Jason Lunder thanks for the suggestion. Do you mean a progress bar on the Swagger UI or BentoML CLI?

@Sean @Chaoyu Currently, we upload files to test our pipeline from the swagger UI. In some circumstances, like we discovered when trying to upload large files to a bento deployed to an Azure ML compute instance, the upload simply won't work, as it will never begin to upload. The only way I was ever able to tell if something was actually uploading or not was by debugging into the formparser where chunks are read, or attempting to do so and failing as the upload wasn't happening. It would be useful if there was a progress bar or something similar either output to the bento container's logs or on the swagger page, that would inform us if a file is actively being uploaded without waiting 10-15 minutes for a failed response.

Thanks for the suggestion, Jason. For now, turning on DEBUG logging on the server may force the server to output HTTP chunks received. If not too much work, you can give that a try.