'Token authentication (instead of PAT token) to Azure DevOps REST API via Azure DevOps Pipeline

I need to use the Azure DevOps Rest API in an Azure DevOps Pipeline. I know it's possible to connect through a PAT token, but there should be a way to use service principal to connect to Azure?

What do I have to change to obtain a bearer token when I run below's code in an Azure DevOps Pipeline?

  Connect-AzAccount -WarningAction 'SilentlyContinue' | Out-Null
  $Token = (Get-AzAccessToken -ResourceUrl "499b84ac-1321-427f-aa17-267ca6975798").Token # Resource url is for Azure DevOps REST API source: https://stackoverflow.com/questions/69996528/authenticate-azure-devops-api-call-without-using-a-pat
  $AzureDevOpsAuthenticationHeader = @{Authorization = 'Bearer ' + $Token }

Solution 1:^[1]

As per the MS DOC Currently, it is not possible. Azure DevOps API doesn't support non-interactive service access via service principals.

There is no access control of service principal in Azure DevOps.

Non- interactive ways follows

PAT (Most Recommended way)
Azure AD ROPC flow (Not recommended because while request we have expose the username and password)

Refer here for more information

Sources

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Source: Stack Overflow

Solution	Source
Solution 1	DelliganeshS-MT

'Token authentication (instead of PAT token) to Azure DevOps REST API via Azure DevOps Pipeline

Solution 1:[1]

Non- interactive ways follows

Sources

Related Questions

Solution 1:^[1]