Java Requires Chilkat v11.0.0+

Group: Refresh OAuth2 Access Token

See more Microsoft Group Examples

Refreshes an expired or non-expired OAuth2 access token for the Microsoft Group REST API. Chilkat2 Java

import com.chilkatsoft.chilkat2.ChilkatException;
import com.chilkatsoft.chilkat2.FileAccess;
import com.chilkatsoft.chilkat2.Http;
import com.chilkatsoft.chilkat2.HttpRequest;
import com.chilkatsoft.chilkat2.HttpResponse;
import com.chilkatsoft.chilkat2.JsonObject;

public class ChilkatExample {

    public static void main(String[] args) {
        // This example requires the Chilkat API to have been previously unlocked.
        // See Global Unlock Sample for sample code.

        JsonObject json = new JsonObject();
        try {
            json.loadFile("qa_data/tokens/msGraphGroup.json");
        } catch (ChilkatException e) {
            return;
        }

        HttpRequest req = new HttpRequest();
        req.addParam("grant_type", "refresh_token");
        req.addParam("redirect_uri", "http://localhost:3017/");
        req.addParam("client_id", "MICROSOFT-GRAPH-CLIENT-ID");
        req.addParam("client_secret", "MICROSOFT-GRAPH-CLIENT-SECRET");
        req.addParam("refresh_token", json.stringOf("refresh_token"));
        req.addParam("scope", "openid profile offline_access user.readwrite group.readwrite.all files.readwrite");

        Http http = new Http();

        req.setHttpVerb("POST");
        req.setContentType("application/x-www-form-urlencoded");

        HttpResponse resp = new HttpResponse();
        try {
            http.httpReq("https://login.microsoftonline.com/common/oauth2/v2.0/token", req, resp);
        } catch (ChilkatException e) {
            System.out.println(e.getLastErrorText());
            return;
        }

        // Load the JSON response.
        json.load(resp.getBodyStr());
        json.setEmitCompact(false);

        // Show the JSON response.
        System.out.println(json.emit());

        System.out.println("Response status code: " + resp.getStatusCode());

        // If the response status code is not 200, then it's an error.
        if (resp.getStatusCode() != 200) {
            return;
        }

        // Save the refreshed access token JSON to a file for future requests.
        FileAccess fac = new FileAccess();
        fac.writeEntireTextFile("qa_data/tokens/msGraphGroup.json", json.emit(), "utf-8", false);

        System.out.println("Success.");
    }
}