The authorization mechanism you have provided is not supported. Please use AWS4-HMAC-SHA256

Question

I get an error AWS::S3::Errors::InvalidRequest The authorization mechanism you have provided is not supported. Please use AWS4-HMAC-SHA256. when I try upload fi

Answer 1

Check your AWS S3 Bucket Region and Pass proper Region in Connection Request.

In My Senario I have set 'APSouth1' for Asia Pacific (Mumbai)

using (var client = new AmazonS3Client(awsAccessKeyId, awsSecretAccessKey, RegionEndpoint.APSouth1))
{
    GetPreSignedUrlRequest request1 = new GetPreSignedUrlRequest
    {
        BucketName = bucketName,
        Key = keyName,
        Expires = DateTime.Now.AddMinutes(50),
    };
    urlString = client.GetPreSignedURL(request1);
}