Grant an appRoleAssignment for a service principal

Namespace: microsoft.graph

Assign an app role for a resource service principal, to a user, group, or client service principal.

App roles that are assigned to service principals are also known as application permissions. Application permissions can be granted directly with app role assignments, or through a consent experience.

To grant an app role assignment, you need three identifiers:

  • principalId: The id of the user, group or client servicePrincipal to which you are assigning the app role.
  • resourceId: The id of the resource servicePrincipal which has defined the app role.
  • appRoleId: The id of the appRole (defined on the resource service principal) to assign to a user, group, or service principal.

Permissions

One of the following permissions is required to call this API. To learn more, including how to choose permissions, see Permissions.

Permission type Permissions (from least to most privileged)
Delegated (work or school account) AppRoleAssignment.ReadWrite.All and Application.Read.All, AppRoleAssignment.ReadWrite.All and Directory.Read.All, Application.ReadWrite.All, Directory.ReadWrite.All
Delegated (personal Microsoft account) Not supported.
Application AppRoleAssignment.ReadWrite.All and Application.Read.All, AppRoleAssignment.ReadWrite.All and Directory.Read.All, Application.ReadWrite.All, Directory.ReadWrite.All

HTTP request

POST /servicePrincipals/{id}/appRoleAssignedTo

Request headers

Name Description
Authorization Bearer {token}. Required.
Content-type application/json. Required.

Request body

In the request body, supply a JSON representation of an appRoleAssignment object.

Response

If successful, this method returns a 201 Created response code and an appRoleAssignment object in the response body.

Examples

Request

Here is an example of the request.

POST https://graph.microsoft.com/v1.0/servicePrincipals/9028d19c-26a9-4809-8e3f-20ff73e2d75e/appRoleAssignedTo
Content-Type: application/json

{
  "principalId": "33ad69f9-da99-4bed-acd0-3f24235cb296",
  "resourceId": "9028d19c-26a9-4809-8e3f-20ff73e2d75e",
  "appRoleId": "ef7437e6-4f94-4a0a-a110-a439eb2aa8f7"
}

In this example, {id} and {resourceId-value} would both be the id of the resource service principal, and {principalId} would be the id of the assigned user, group, or client service principal.

Response

Here is an example of the response.

Note: The response object shown here might be shortened for readability.

HTTP/1.1 201 Created
Content-type: application/json

{
  "@odata.context": "https://graph.microsoft.com/v1.0/$metadata#servicePrincipals('9028d19c-26a9-4809-8e3f-20ff73e2d75e')/appRoleAssignedTo/$entity",
  "id": "-WmtM5na7Uus0D8kI1yylpU9Mdo0Pb9OoBJvd3T5eKc",
  "deletedDateTime": null,
  "appRoleId": "ef7437e6-4f94-4a0a-a110-a439eb2aa8f7",
  "createdDateTime": "2021-02-15T16:14:59.8643039Z",
  "principalDisplayName": "Parents of Contoso",
  "principalId": "33ad69f9-da99-4bed-acd0-3f24235cb296",
  "principalType": "Group",
  "resourceDisplayName": "Fabrikam App",
  "resourceId": "9028d19c-26a9-4809-8e3f-20ff73e2d75e"
}