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Anonymous's avatar
Anonymous
Not applicable
6 years ago

OAuth flow not validating credentials for On-Premise Gateway

I have built a Custom Data Connector that connects to Facebook's Graph API which successfully works in Power BI Desktop. When I add the .mez file to our companies Custom Connector Folder for our On-P...
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Anonymous's avatar
Anonymous
Not applicable
6 years ago

I had slight progress on this, however still can't get things to work as expected.

 

Firstly, I added the code for the TestConnection, which I forgot to include in my first chunk of code I posted. This did not allow any progression of my error.

 

FacebookForBusiness = [
    TestConnection = (dataSourcePath) =>  { "FacebookForBusiness.Navigation"},
    Authentication = [
        OAuth = [
            StartLogin = StartLogin,
            Refresh = Refresh,
            FinishLogin = FinishLogin
        ]
    ],
    Label =  Extension.LoadString ("DataSourceLabel")
];

 

I also experimented of changing my redirect URI

from...

https://oauth.powerbi.com/views/oauthredirect.html

 to....

https://preview.powerbi.com/views/oauthredirect.html

 

When I did this step, I got the sign-in box to close, but with an error message.

Status code: 400

Error Code: DMTS_PublishDatasourceToClusterErrorCode

 

Any clues on the next steps?

 

  • Anonymous's avatar
    Anonymous
    Not applicable
    6 years ago

    So, I am narrowing this down a little bit, however still no success. 

     

    When running the OAuth flow, when I have the redirect as

    https://oauth.powerbi.com/views/oauthredirect.html

     The start of the flow goes to the preview.... redirect URI when on adding it to the gateway.

     

    This explains why it works on desktop, as when I run it in the Desktop it correctly runs, as it correctly goes via the correct Redirect URI (as seen on Fiddler trace).

     

    Why would the gateway data source binding re-point to the preview redirect when it is not being told to !