Hi ,
Thanks for reaching out to Microsoft Q&A.
The "Unauthorized" error indicates that the API call is not being authenticated properly, despite the permissions you have set up. To resolve this, ensure the following steps are taken:
- Authentication: Verify that Azure Data Factory is properly authenticating to Microsoft Fabric using a supported auth method, such as AAD. You can authenticate using a Service Principal or a MI (if your ADF has one). Make sure the token acquired is valid and that it is passed correctly in the API call.
- Access Token: When calling the Fabric Notebook API, you need to obtain a valid bearer token from Azure AD. Here is an outline of the process:
- First, register an Azure AD app (if using a Service Principal) or use the Managed Identity of ADF.
- Acquire an OAuth 2.0 token by calling Azure AD’s token endpoint.
- Pass the token in the authorization header of your API request in bash:
-
Authorization: Bearer <
access_token
>
https://fabric.microsoft.com/.default
. Managed Identity Setup (Preferred): If using ADF’s Managed Identity, ensure that it is correctly set up in both ADF and Fabric. Assign the identity proper access to Fabric resources. Diagnostics: Use a tool like Postman to manually authenticate and make the same API call to check if the issue persists outside ADF. This can help isolate whether it's an authentication or configuration issue within ADF. -
- Pass the token in the authorization header of your API request in bash:
For a simpler way to trigger the notebook, you could consider the following options:
- Use Logic Apps or Azure Functions to handle the authentication and API call logic & trigger them from ADF as part of your pipeline.
- Ensure that the user or identity making the API call has the correct permissions by checking the roles assigned to the user or service principal in Microsoft Fabric.
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