ModelRefreshFailed_CredentialsNotSpecified when Refresh DataSet

[XiaodongLiang]

Hi,

I have a report with Cosmos as data source. After some data of Cosmos change, I want to force a refresh for PBI report updates. 

Post 

https://api.powerbi.com/v1.0/myorg/groups/{{groupId}}/datasets/{{datasetId}}/refreshes

it returns 202.

while by 

GET 

https://api.powerbi.com/v1.0/myorg/groups/{{groupId}}/datasets/{{datasetId}}/refreshes

the history tells the error below:

{
      "id": 225716337,
      "refreshType": "ViaApi",
      "startTime": "2019-10-14T08:48:15.39Z",
      "endTime": "2019-10-14T08:48:15.453Z",
      "serviceExceptionJson": "{\"errorCode\":\"ModelRefreshFailed_CredentialsNotSpecified\"}",
      "status": "Failed",
      "requestId": "65b98616-85fd-4535-a978-d9ff2ca9764c"
    }

The token is prcoceeded by the steps:

1. get openId token by 

https://login.microsoftonline.com/common/oauth2/token

payload:

headers: 
   {  
     Authorization: 'Bearer {{openid token}}
}

form: 
   { client_id: '{{my client id}}',
     scope: 'openid',
     resource: 'https://analysis.windows.net/powerbi/api',
     username: '{{my account name}}',
     password: '{{my password}}',
     grant_type: 'password'
 }

2. get access token of dataset:

https://api.powerbi.com/v1.0/myorg/groups/{{groupId}}/datasets/{{datasetId}}/GenerateToken

header:

headers: 
   { 
     Authorization: 'Bearer {{openid token}}
}

Could you check what I missed? Thank you!

[Anonymous]

For anybody else that runs into this issue, here is a visual guide on where to enter the credential information to eliminate this error.

[XiaodongLiang · Accepted solution]

I figured out myself. It is because the Cosmos key was input with desktop PowerBI only. While Refresh API will take advantage of PowerBI on-line (https://app.powerbi.com/),  which has not key input. After providing it, Refresh API started to run, though not sure it can succeed finally. Will see