Question 247196 in Azure Question posted in
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Azure – How to get ResourceId from AAD application

I want to fetch the Access Token from AAD application using below snippet.

var tokenCredential = new DefaultAzureCredential();
var accessToken = await tokenCredential.GetTokenAsync(
new TokenRequestContext(scopes: new string[] { ResourceId + "/.default" }) { }
);

I have created AAD application on Azure portal, How to get ResourceId from the AAD application?

enter image description here

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2

Answers


  1. 0

    It’s the Application ID URI in your screenshot.
    You can technically use either the Application (client) ID or the Application ID URI. Both identify the application.

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  2. 0

    Note that: Resource ID depends on the Azure resource you want to authenticate the Azure AD Application (Microsoft Graph, Web Api etc).

    For sample, I passed https://graph.microsoft.com as resourceId to authenticate Microsoft Graph API.

    using Azure.Core;
using Azure.Identity;

// Define the resource ID for the Azure AD application you want to access.
string resourceId = "https://graph.microsoft.com";

var tokenCredential = new DefaultAzureCredential();

var accessToken = await tokenCredential.GetTokenAsync(
    new TokenRequestContext(scopes: new string[] { resourceId + "/.default" })
);

Console.WriteLine(accessToken.Token);

    enter image description here

    I agree with @juunas, if you want to authenticate the web Api you can pass resourceId as the ClientID or the API URL of the Azure AD Application like below:

    enter image description here

    Note that: To fetch the access token for web Api, you must add Microsoft Azure CLI with client ID
    04b07795-8ddb-461a-bbee-02f9e1bf7b46 as the Authorized client application.

    Go to the Azure AD App -> Expose an API -> Add client application with 04b07795-8ddb-461a-bbee-02f9e1bf7b46 and check the scope.

    enter image description here

    And make sure to grant the API permissions:

    enter image description here

    using Azure.Core;
using Azure.Identity;


// Define the resource ID for the Azure AD application you want to access.
string resourceId = "api://ClientID";

var tokenCredential = new DefaultAzureCredential();

var accessToken = await tokenCredential.GetTokenAsync(
    new TokenRequestContext(scopes: new string[] { resourceId + "/.default" })
);

Console.WriteLine(accessToken.Token);

    enter image description here

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