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(C#) ETrade Renew Access Token

Renews an ETrade OAuth access token.

For more information, see https://apisb.etrade.com/docs/api/authorization/renew_access_token.html

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

Chilkat.Http http = new Chilkat.Http();

http.OAuth1 = true;
http.OAuthVerifier = "";
http.OAuthConsumerKey = "ETRADE_CONSUMER_KEY";
http.OAuthConsumerSecret = "ETRADE_CONSUMER_SECRET";

// Load the access token previously obtained via the OAuth1 Authorization
Chilkat.JsonObject jsonToken = new Chilkat.JsonObject();
bool success = jsonToken.LoadFile("qa_data/tokens/etrade.json");
if (success != true) {
    Debug.WriteLine("Failed to load OAuth1 token");
    return;
}

http.OAuthToken = jsonToken.StringOf("oauth_token");
http.OAuthTokenSecret = jsonToken.StringOf("oauth_token_secret");

Chilkat.HttpResponse resp = http.QuickGetObj("https://api.etrade.com/oauth/renew_access_token");
if (http.LastMethodSuccess != true) {
    Debug.WriteLine(http.LastErrorText);
    return;
}

// Make sure a successful response was received.
if (resp.StatusCode != 200) {
    Debug.WriteLine(resp.StatusLine);
    Debug.WriteLine(resp.Header);
    Debug.WriteLine(resp.BodyStr);
    return;
}

// If successful, the resp.BodyStr contains something like this:
// oauth_token=%3TiQRgQCRGPo7Xdk6G8QDSEzX0Jsy6sKNcULcDavAGgU%3D&oauth_token_secret=%7RrC9scEpzcwSEMy4vE7nodSzPLqfRINnTNY4voczyFM%3D
Debug.WriteLine(resp.BodyStr);

Chilkat.StringBuilder sbRespBody = new Chilkat.StringBuilder();
resp.GetBodySb(sbRespBody);
if (sbRespBody.ContentsEqual("Access Token has been renewed",false)) {
    // The documentation at https://apisb.etrade.com/docs/api/authorization/renew_access_token.html
    // indicates that the response should be as described above.  However, the response received when
    // trying to refresh a non-expired token was "Access Token has been renewed"
    Debug.WriteLine("Keeping the same access token, but it's renewed...");
    return;
}

Chilkat.Hashtable hashTab = new Chilkat.Hashtable();
hashTab.AddQueryParams(resp.BodyStr);

string accessToken = hashTab.LookupStr("oauth_token");
string accessTokenSecret = hashTab.LookupStr("oauth_token_secret");

// The access token + secret is what should be saved and used for
// subsequent REST API calls.
Debug.WriteLine("Access Token = " + accessToken);
Debug.WriteLine("Access Token Secret = " + accessTokenSecret);

// Save this access token for future calls.
// Just in case we need user_id and screen_name, save those also..
Chilkat.JsonObject json = new Chilkat.JsonObject();
json.AppendString("oauth_token",accessToken);
json.AppendString("oauth_token_secret",accessTokenSecret);

Chilkat.FileAccess fac = new Chilkat.FileAccess();
fac.WriteEntireTextFile("qa_data/tokens/etrade.json",json.Emit(),"utf-8",false);

Debug.WriteLine("Success.");

 

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