NitroImg v1.5.0 - Background Conversion and Retries

Uploads no longer time out, failed conversions are retried instead of being lost, and the licence key can be checked against the platform.

Uploads

• Conversion moved out of the upload - conversion used to run inside the upload request itself, which most hosts cut off after 60 seconds, so a large image returned a gateway timeout. Uploads are now queued and converted in the background, five at a time, so a bulk upload paces itself.
• Faster conversions - the sizes of one image are converted in parallel batches rather than one after another, with the batch size reduced automatically for large source images.

Reliability

• Failures are retried - a network blip used to lose an image permanently, with one line in the error log. Timeouts, server errors and rate limits are now retried with backoff, while permanent failures (unsupported file, missing file, bad key) are dropped immediately so they can never spend a credit on a retry.
• Alt text retries too - a failed generation used to be logged and forgotten, leaving the image with an empty alt for good.
• An upload made with no credits is retried after a top-up rather than skipped for ever.
• Errors are visible on the image - the last error is recorded against the attachment, so a dropped conversion no longer only appears in the error log.

Licence

• Verify and Save - the green badge only ever meant that a key was stored, and could not tell a working key from a revoked one. The new button checks the key against the platform and reports your credit balance. A failed check never deletes the key you saved.