Xamarin Forms - can't load s3 sign url

Technical Support Apryse SDK
1

Hi All,
Using Xamarin Forms,I am trying to create a presigned URL for a private file test.pdf on S3.

sample code:
mPdfViewCtrl.OpenUrlAsync("","");

When I try to access it, it shows

<Error>
<Code>AuthorizationQueryParametersError</Code>
<Message>
Query-string authentication version 4 requires the X-Amz-Algorithm, X-Amz-Credential, X-Amz-Signature, X-Amz-Date, X-Amz-SignedHeaders, and X-Amz-Expires parameters.
</Message>
<RequestId>97377E063D0B1D09</RequestId>
<HostId>
6GE7EdqUvCEJis+fPoWR0Ffp2kN9Mlql4gs+qB4uY3hA4qR2wYrImkZfv05xy4XVjsZnRDVN63s=
</HostId>
</Error>

I am totally stuck and would really appreciate some idea on how to solve it.

Thanks

2 
Query-string authentication version 4 requires the X-Amz-Algorithm, X-Amz-Credential, X-Amz-Signature, X-Amz-Date, X-Amz-SignedHeaders, and X-Amz-Expires parameters.

You seem to be incorrectly queering the S3 servers. Please verify the URL that you pass to mPdfViewCtrl.OpenUrlAsync("","");

Please refer to Authenticating Requests: Using Query Parameters (AWS Signature Version 4) for more information.

Shakthi,

3

Hi Shakthi,

Below url not loding in mPdfViewCtrl.OpenUrlAsync("","").
Url: https://crhtmltest.s3.amazonaws.com/Software_Details_Jayaseelan.pdf?AWSAccessKeyId=AKIAIWB3XEZYT4A4RI2Q&Expires=1507385483&Signature=h8r%2Bzoyhb2bEwlOAfcGrcbu76Cs%3D

Note: Cloudfront signed url is working as expected from our end. But issue only in s3 PreSignedUrl.

Please help me ASAP.

waiting for your reply.

Thanks

4

When I paste that URL into chrome, I see the following warning. (to see the warning, check “Preserve Log” in the Chrome developer network tab.

Resource interpreted as Document but transferred with MIME type application/pdf: "https://crhtmltest.s3.amazonaws.com/Software_Details_Jayaseelan.pdf?AWSAccessKeyId=AKIAIWB3XEZYT4A4RI2Q&Expires=1507385483&Signature=h8r%2Bzoyhb2bEwlOAfcGrcbu76Cs%3D".

5

Hi Rayan,
We enabled “Preserve Log” in the Chrome developer network tab and then enter the s3 signed url but your mentioned warning message is not displayed in our end.

6

Hi Ryan,
can you please create s3 presigned url and then load it to mPdfViewCtrl.OpenUrlAsync("",""). from your end.

Its working or not?

Thanks

7

Hi, thank you for your patience. I believe I found the issue, and I have a correction in our developer channel.

Are you working on Xamarin.Android or Xamarin.iOS? I can send you a patched release build next week.

8

Ryan, Thank you for your update.

Currently we are working on xamarin IOS & Droid(xamarin forms) from our end. could you please send a patched release in both.

Thanks