(Java) 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".

Note: This example requires Chilkat v11.0.0 or greater.

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import com.chilkatsoft.*;

public class ChilkatExample {

  static {
    try {
        System.loadLibrary("chilkat");
    } catch (UnsatisfiedLinkError e) {
      System.err.println("Native code library failed to load.\n" + e);
      System.exit(1);
    }
  }

  public static void main(String argv[])
  {
    boolean success = false;

    // 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();
    success = true;

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

    CkHttpResponse resp = new CkHttpResponse();
    success = http.HttpNoBody("GET",requestTokenUrl,resp);
    if (success == false) {
        System.out.println(http.lastErrorText());
        return;
        }

    // If successful, the resp.BodyStr contains something like this:  
    // oauth_token=-Wa_KwAAAAAAxfEPAAABV8Qar4Q&oauth_token_secret=OfHY4tZBX2HK4f7yIw76WYdvnl99MVGB&oauth_callback_confirmed=true
    System.out.println(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);

    System.out.println("oauth_token = " + requestToken);
    System.out.println("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();

    // Launch the system's default browser navigated to the URL.
    CkOAuth2 oauth2 = new CkOAuth2();
    success = oauth2.LaunchBrowser(url);
    if (success == false) {
        System.out.println(oauth2.lastErrorText());
        return;
        }

    // 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.

    // 
  }
}