Java Requires Chilkat v10.1.2+

SharePoint Rest API using OAuth

See more OAuth2 Examples

Demonstrates how to get an OAuth2 access token for the SharePoint REST API. Chilkat2 Java

import com.chilkatsoft.chilkat2.ChilkatException;
import com.chilkatsoft.chilkat2.OAuth2;

public class ChilkatExample {

    public static void main(String[] args) {
        // To further clarify, see OAuth 2.0 Authorization Flow

        OAuth2 oauth2 = new OAuth2();

        // The ListenPort should match the port in your localhost Reply URL of your Azure AD app.
        // Your Reply URL must be exactly "http://localhost:LISTEN_PORT/"
        //    * Do not use "https"
        //    * Make sure the ending "/" is included.
        //    * You may choose any port number that doesn't collide with anything else.
        oauth2.setListenPort(3017);

        oauth2.setAuthorizationEndpoint("https://login.microsoftonline.com/TENANT_ID/oauth2/authorize");
        oauth2.setTokenEndpoint("https://login.windows.net/TENANT_ID/oauth2/token?api-version=1.0");

        // Replace these with actual values.
        // Use the application ID
        oauth2.setClientId("CLIENT_ID");
        // Use the password
        oauth2.setClientSecret("CLIENT_SECRET");

        oauth2.setCodeChallenge(false);

        oauth2.setScope("openid");
        oauth2.setResource("https://graph.microsoft.com/");

        oauth2.setIncludeNonce(true);
        oauth2.setResponseMode("form_post");
        oauth2.setResponseType("id_token+code");

        // Begin the OAuth2 Authorization code flow.  This returns a URL that should be loaded in a browser.
        String url;
        try {
            url = oauth2.startAuth();
        } catch (ChilkatException e) {
            System.out.println(e.getLastErrorText());
            return;
        }

        System.out.println("url = " + url);

        // Launch the default browser on the system and navigate to the url.
        // The LaunchBrowser method was added in Chilkat v10.1.2.
        try {
            oauth2.launchBrowser(url);
        } catch (ChilkatException e) {
            System.out.println(e.getLastErrorText());
            return;
        }

        // Wait for the user to approve or deny authorization in the browser.
        int numMsWaited = 0;
        while ((numMsWaited < 90000) && (oauth2.getAuthFlowState() < 3)) {
            oauth2.sleepMs(100);
            numMsWaited = numMsWaited + 100;
        }

        // If the browser does not respond within the specified time, AuthFlowState will be:
        //
        // 1: Waiting for Redirect – The OAuth2 background thread is waiting for the browser's redirect request.
        // 2: Waiting for Final Response – The thread is awaiting the final access token response.
        // In either case, cancel the background task initiated by StartAuth.

        if (oauth2.getAuthFlowState() < 3) {
            oauth2.cancel();
            System.out.println("No response from the browser!");
            return;
        }

        // Check AuthFlowState to determine if authorization was granted, denied, or failed:
        //
        // 3: Success – OAuth2 flow completed, the background thread exited, and the successful response is in AccessTokenResponse.
        // 4: Access Denied – OAuth2 flow completed, the background thread exited, and the error response is in AccessTokenResponse.
        // 5: Failure – OAuth2 flow failed before completion, the background thread exited, and error details are in FailureInfo.

        if (oauth2.getAuthFlowState() == 5) {
            System.out.println("OAuth2 failed to complete.");
            System.out.println(oauth2.getFailureInfo());
            return;
        }

        if (oauth2.getAuthFlowState() == 4) {
            System.out.println("OAuth2 authorization was denied.");
            System.out.println(oauth2.getAccessTokenResponse());
            return;
        }

        if (oauth2.getAuthFlowState() != 3) {
            System.out.println("Unexpected AuthFlowState:" + oauth2.getAuthFlowState());
            return;
        }

        System.out.println("OAuth2 authorization granted!");
        System.out.println("Access Token = " + oauth2.getAccessToken());
    }
}