Object Storage Service:0002-00000401

Problem description

The Authorization header in the request is empty.

Causes

You initiate a request that uses an Amazon S3-compatible V4 signature. However, the Authorization header is empty.

Examples

The following code provides an example:

GET /test.txt HTTP/1.0
Date: Tue, 20 Dec 2022 08:48:18 GMT
Host: oss-example.oss-cn-hangzhou.aliyuncs.com
Authorization:
x-amz-content-sha256: abc***
x-amz-date: 20221220T084818Z
x-oss-s3-compat: true

Solutions

Make sure that the Authorization header is included in the request and a valid value is specified for the field.

GET /test.txt HTTP/1.0
Date: Tue, 20 Dec 2022 08:48:18 GMT
Host: oss-example.oss-cn-hangzhou.aliyuncs.com
Authorization:AWS4-HMAC-SHA256 Credential=LTAI****************/20221220/us-east-1/s3/aws4_request,SignedHeaders=host;x-amz-content-sha256;x-amz-date,Signature=34****
x-amz-content-sha256: abc****
x-amz-date: 20221220T084818Z
x-oss-s3-compat: true

We recommend that you use Amazon S3 SDKs to initiate the request. For more information, see Use Amazon S3 SDKs to access OSS.