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Object Storage Service:0002-00000117

Last Updated:Jul 21, 2023

Issue description

The x-oss-signature request parameter is missing.

Causes

You initiated a request that includes the V2 signature in the URL, but the x-oss-signature parameter is missing.

Examples

You initiated a request that uses the V2 signature, but the x-oss-signature parameter is missing.

GET /oss.jpg?x-oss-signature-verion=OSS2&x-oss-expires=1141889120&x-oss-access-key-id=nz2pc56s936**** HTTP/1.1
Host: oss-example.oss-cn-hangzhou.aliyuncs.com
Date: Tue, 20 Dec 2022 08:48:18 GMT

The value of the x-oss-signature parameter is the signature calculated by using the signature algorithm.

Solutions

When you initiate a request that includes the V2 signature in the URL, make sure that the following fields are included in the request: x-oss-signature-verion, x-oss-access-key-id, x-oss-signature-verion, and x-oss-signature. Example:

GET /oss.jpg?x-oss-signature-verion=OSS2&x-oss-access-key-id=nz2pc56s936****&x-oss-expires=1141889120&x-oss-signature=a8***I0= HTTP/1.1
Host: oss-example.oss-cn-hangzhou.aliyuncs.com
Date: Tue, 20 Dec 2022 08:48:18 GMT

For more information, see Add signatures to URLs.

Note

We recommend that you use Alibaba Cloud SDKs to initiate requests. Alibaba Cloud SDKs automatically generate signatures for the requests. For more information, see Overview.