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Regular Visitor

Using service principal for the datasource credentials



I use service principal to connect from PowerBI service to Azure Data Explorer (direct query mode). Pbix is file uploaded to service via power shell. After that I get oauth2 access token for my service principal and set it to the datasource with a help of

Everything works fine exepct that max lifetime for the access token that I can get is 1 day. So after that my reports get unauthorized errorr. I can't find a way to provide refresh token to datasource and it is not clear if it is supported anyhow. 


Is there any workaround to use service principal? 


Thanks in advance!

Regular Visitor

I use following method to set datasource credentials -


$patchBody = @{ "credentialDetails" = @{ "credentials" = "{""credentialData"":[{""name"":""accessToken"",""value"":""$AccessToken""}]}" "credentialType" = "OAuth2" "encryptedConnection" = "NotEncrypted" "encryptionAlgorithm" = "None" "privacyLevel" = "Private" } }


 The AccessToken I get using following code


$requestAccessTokenUri = "$Dataset_TenantId/oauth2/token"; $body = "grant_type=client_credentials&client_id=$Dataset_ClientId&client_secret=$Dataset_ClientSecret&resource=$KustoClusterUrl" $token = Invoke-RestMethod -Method Post -Uri $requestAccessTokenUri -Body $body -ContentType 'application/x-www-form-urlencoded'


This token is valid only for 1 hour, I can set it to be valid for 23h 59m using token lifetime policy, but after that my report will stop working
I know that other azure services also accept refresh token, so they can issues new access token automatically, but I can't provide refresh token to powerbi

Community Support
Community Support

Hi @oyermokhin ,


Why the lifetime for the access token is only 1 day? And have you checked this document? 


Best Regards,


Community Support Team _ Jay
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