master-server/deps/curl/docs/cmdline-opts/aws-sigv4.md

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---
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c: Copyright (C) Daniel Stenberg, <daniel@haxx.se>, et al.
SPDX-License-Identifier: curl
Long: aws-sigv4
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Protocols: HTTP
Arg: <provider1[:prvdr2[:reg[:srv]]]>
Help: AWS V4 signature auth
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Category: auth http
Added: 7.75.0
Multi: single
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See-also:
- basic
- user
Example:
- --aws-sigv4 "aws:amz:us-east-2:es" --user "key:secret" $URL
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---
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# `--aws-sigv4`
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Use AWS V4 signature authentication in the transfer.
The provider argument is a string that is used by the algorithm when creating
outgoing authentication headers.
The region argument is a string that points to a geographic area of
a resources collection (region-code) when the region name is omitted from
the endpoint.
The service argument is a string that points to a function provided by a cloud
(service-code) when the service name is omitted from the endpoint.