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c SPDX-License-Identifier Long Arg Help Protocols Category Added Multi See-also Example
Copyright (C) Daniel Stenberg, <[email protected]>, et al.
curl
data-binary
<data>
HTTP POST binary data
HTTP
http post upload
7.2
append
data-ascii
--data-binary @filename $URL

--data-binary

Post data exactly as specified with no extra processing whatsoever.

If you start the data with the letter @, the rest should be a filename. Data is posted in a similar manner as --data does, except that newlines and carriage returns are preserved and conversions are never done.

Like --data the default content-type sent to the server is application/x-www-form-urlencoded. If you want the data to be treated as arbitrary binary data by the server then set the content-type to octet-stream: -H "Content-Type: application/octet-stream".

If this option is used several times, the ones following the first append data as described in --data.