Unable update Datasource Credentials using credential type as OAuth2 using Power BI Rest API

[Anonymous]

Hello,

While trying to update a Datasource credentials for oAuth2 authentication using the Power BI Rest API, it throws an error saying the credentials are invalid.

Error: The credentials provided for the Web source are invalid. 

(https://docs.microsoft.com/en-us/rest/api/power-bi/gateways/updatedatasource#oauth2-credentials-exam... ) 

As shown in this documentation, it requires an access token to be passed while using the API to change the data source credentials. It is not clear as to what type of access token needs to be used for this and how to generate the same.

Any help would be appreciated plus official documentation needs to be updated to include more details related to generation of access token.

[giost]

Here what worked for me:

https://community.powerbi.com/t5/Developer/AccessUnauthorized-on-Mashup-engine-using-Gateways-Update...

[giost]

Same here:

Re: AccessUnauthorized on Mashup engine using Gateways - Update Datasource API

[Anonymous]

Any succes with fixing this? I'm running into the same problem, need to update oauth2 credentials via the API for my dataset connection to a SharePoint file.