(Android™) ETrade OAuth1 Authorization (3-legged) Step 1

Demonstrates the first step in 3-legged OAuth1 authorization for the ETrade REST API. This example sends an HTTP request to the "request token URL" to get a request token that begins the OAuth1 process. (See https://apisb.etrade.com/docs/api/authorization/request_token.html )

This example uses the sandbox request token URL. The live request token URL would be "https://api.etrade.com/oauth/request_token".

Chilkat Android™ Downloads Android™ Java Libraries Android C/C++ Libraries

// 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);

    // This requires the Chilkat API to have been previously unlocked.
    // See Global Unlock Sample for sample code.

    String consumerKey = "ETRADE_CONSUMER_KEY";
    String consumerSecret = "ETRADE_CONSUMER_SECRET";

    // Note: This example uses the sandbox request token URL.
    // The live Get Request Token Request URL is:
    // https://api.etrade.com/oauth/request_token
    // This example will use the Sandbox Token Request URL:
    String requestTokenUrl = "https://apisb.etrade.com/oauth/request_token";

    CkHttp http = new CkHttp();
    boolean success = true;

    http.put_OAuth1(true);
    http.put_OAuthConsumerKey(consumerKey);
    http.put_OAuthConsumerSecret(consumerSecret);
    http.put_OAuthCallback("oob");

    CkHttpResponse resp = http.QuickGetObj(requestTokenUrl);
    if (http.get_LastMethodSuccess() != true) {
        Log.i(TAG, http.lastErrorText());
        return;
        }

    // If successful, the resp.BodyStr contains something like this:  
    // oauth_token=-Wa_KwAAAAAAxfEPAAABV8Qar4Q&oauth_token_secret=OfHY4tZBX2HK4f7yIw76WYdvnl99MVGB&oauth_callback_confirmed=true
    Log.i(TAG, resp.bodyStr());

    CkHashtable hashTab = new CkHashtable();
    hashTab.AddQueryParams(resp.bodyStr());

    String requestToken = hashTab.lookupStr("oauth_token");
    String requestTokenSecret = hashTab.lookupStr("oauth_token_secret");
    http.put_OAuthTokenSecret(requestTokenSecret);

    Log.i(TAG, "oauth_token = " + requestToken);
    Log.i(TAG, "oauth_token_secret = " + requestTokenSecret);

    // Save this request token for the next step..
    CkJsonObject json = new CkJsonObject();
    json.AppendString("oauth_token",requestToken);
    json.AppendString("oauth_token_secret",requestTokenSecret);

    CkFileAccess fac = new CkFileAccess();
    fac.WriteEntireTextFile("qa_data/tokens/etrade_request_token.json",json.emit(),"utf-8",false);

    // ---------------------------------------------------------------------------

    // The next step is to form a URL to send to the authorizeUrl
    // This is an HTTP GET that we load into a popup browser.
    String authorizeUrl = "https://us.etrade.com/e/t/etws/authorize";

    CkStringBuilder sbUrlForBrowser = new CkStringBuilder();
    sbUrlForBrowser.Append(authorizeUrl);
    sbUrlForBrowser.Append("?key=");
    sbUrlForBrowser.Append(consumerKey);
    sbUrlForBrowser.Append("&token=");
    sbUrlForBrowser.Append(requestToken);
    String url = sbUrlForBrowser.getAsString();

    // At this point, your application should load the URL in a browser.
    // For example, 
    // in C#: System.Diagnostics.Process.Start(url);
    // in Java: Desktop.getDesktop().browse(new URI(url));
    // in VBScript: Set wsh=WScript.CreateObject("WScript.Shell")
    //              wsh.Run url
    // in Xojo: ShowURL(url)  (see http://docs.xojo.com/index.php/ShowURL)
    // in Dataflex: Runprogram Background "c:\Program Files\Internet Explorer\iexplore.exe" sUrl        
    // The Microsoft account owner would interactively accept or deny the authorization request.

    // Add the code to load the url in a web browser here...
    // Add the code to load the url in a web browser here...
    // Add the code to load the url in a web browser here...

    // The ETrade account owner will login and grant access to the application.
    // A short verifier code will be displayed (as shown below), and this must be copy-and-pasted
    // into the next step to Complete the 3-legged OAuth1 Authorization 

    // Note: The browser will NOT automatically direct you to the next page.
    // You should copy the verifier code, close the browser, and then paste the verifier
    // code into your application.

    // 

  }

  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."
  }
}