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Is anyone using curl to resume HTTP uploads?
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From: Ray Satiro via curl-library <curl-library_at_lists.haxx.se>
Date: Thu, 27 Aug 2026 18:10:24 -0400
We have an open curl project issue that resume on HTTP uploads does not
work [1]. curl and libcurl support resume with --continue-at [2] or
CURLOPT_RESUME_FROM_LARGE [3] respectively. However it's unclear whether
people are actually using that for HTTP upload since typically servers
do not support that and it is not standardized.
If you are using curl or libcurl to resume HTTP uploads can you tell us
how are you doing it and what server or service allows it. Please add
your comments to the issue or reply to this mailing list thread.
[1]: https://github.com/curl/curl/issues/22703
[2]: https://curl.se/docs/manpage.html#--continue-at
[3]: https://curl.se/libcurl/c/CURLOPT_RESUME_FROM_LARGE.html
Date: Thu, 27 Aug 2026 18:10:24 -0400
We have an open curl project issue that resume on HTTP uploads does not
work [1]. curl and libcurl support resume with --continue-at [2] or
CURLOPT_RESUME_FROM_LARGE [3] respectively. However it's unclear whether
people are actually using that for HTTP upload since typically servers
do not support that and it is not standardized.
If you are using curl or libcurl to resume HTTP uploads can you tell us
how are you doing it and what server or service allows it. Please add
your comments to the issue or reply to this mailing list thread.
[1]: https://github.com/curl/curl/issues/22703
[2]: https://curl.se/docs/manpage.html#--continue-at
[3]: https://curl.se/libcurl/c/CURLOPT_RESUME_FROM_LARGE.html
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