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Android™

Configure OAuth 2.0 Authentication for REST

See more REST Examples

Demonstrates Rest.SetAuthOAuth2, which associates an OAuth2 provider containing a valid access token so Chilkat adds the bearer token to the Authorization header.

Background. OAuth 2.0 bearer-token authentication attaches the access token to each request. The token is typically obtained separately through an OAuth 2.0 authorization flow before being assigned to the provider.

Chilkat Android™ Downloads

Android™
// Important: Don't forget to include the call to System.loadLibrary
// as shown at the bottom of this code sample.
package com.test;

import android.app.Activity;
import com.chilkatsoft.*;

import android.widget.TextView;
import android.os.Bundle;

public class SimpleActivity extends Activity {

  private static final String TAG = "Chilkat";

  // Called when the activity is first created.
  @Override
  public void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);

    boolean success = false;

    CkRest rest = new CkRest();
    boolean bTls = true;
    boolean bAutoReconnect = true;
    success = rest.Connect("example.com",443,bTls,bAutoReconnect);
    if (success == false) {
        Log.i(TAG, rest.lastErrorText());
        return;
        }

    //  Configure OAuth 2.0 bearer-token authentication.  The provider must contain a valid access token.
    CkOAuth2 oauth2 = new CkOAuth2();
    //  Normally you would not hard-code secrets in source.  You should instead obtain them from an
    //  interactive prompt, environment variable, or a secrets vault.
    oauth2.put_AccessToken("OAUTH2_ACCESS_TOKEN");

    //  Associate the provider so Chilkat adds the bearer token to the Authorization header.
    success = rest.SetAuthOAuth2(oauth2);
    if (success == false) {
        Log.i(TAG, rest.lastErrorText());
        return;
        }

    String responseText = rest.fullRequestNoBody("GET","/api/resource");
    if (rest.get_LastMethodSuccess() == false) {
        Log.i(TAG, rest.lastErrorText());
        return;
        }

    Log.i(TAG, responseText);

  }

  static {
      System.loadLibrary("chilkat");

      // Note: If the incorrect library name is passed to System.loadLibrary,
      // then you will see the following error message at application startup:
      //"The application <your-application-name> has stopped unexpectedly. Please try again."
  }
}