How to create a Graph Client from a String accessToken using Java?

Question

I followed this flow and able to retrieve an access token using certificate.

https://learn.microsoft.com/en-us/entra/identity-platform/v2-oauth2-auth-code-flow

I tried the access token on Postman and it worked:

Authorization: Bearer

Answer 1

Hi @Jin Nguyen , to create a Graph Client from a String accessToken using Java, you can use the following code snippet:

import com.microsoft.graph.authentication.IAuthenticationProvider;
import com.microsoft.graph.authentication.TokenCredentialAuthProvider;
import com.microsoft.graph.models.User;
import com.microsoft.graph.requests.GraphServiceClient;
import com.azure.identity.ClientSecretCredential;
import com.azure.identity.ClientSecretCredentialBuilder;

public class GraphClient {
    public static GraphServiceClient<Request> createGraphClient(String clientId, String clientSecret, String tenantId) {
        ClientSecretCredential clientSecretCredential = new ClientSecretCredentialBuilder()
                .clientId(clientId)
                .clientSecret(clientSecret)
                .tenantId(tenantId)
                .build();

        IAuthenticationProvider authProvider = new TokenCredentialAuthProvider(clientSecretCredential);
        return GraphServiceClient.builder().authenticationProvider(authProvider).buildClient();
    }
}

Replace clientId, clientSecret, and tenantId with your own values.

Please let me know if you have any questions and I can help you further.

If this answer helps you please mark "Accept Answer" so other users can reference it.

Thank you,

James