How to add Azure AD user to Azure DevOps organisation programmatically

Question

My organisation is connected to Azure AD.

I'd like to add AD users to my Azure DevOps organisation with C# or via Microsoft REST/Graph API.

Answer 1

You can do it with User Entitlements - Add Rest API:

POST https://vsaex.dev.azure.com/{organization}/_apis/userentitlements?api-version=5.1-preview.2

Example of the json body:

{
  "accessLevel": {
    "accountLicenseType": "express"
  },
  "extensions": [
    {
      "id": "ms.feed"
    }
  ],
  "user": {
    "principalName": "[email protected]",
    "subjectKind": "user"
  },
  "projectEntitlements": [
    {
      "group": {
        "groupType": "projectContributor"
      },
      "projectRef": {
        "id": "e5943a98-a842-4001-bd3b-06e756a7dfac"
      }
    }
  ]
}