Chilkat Examples

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Node.js Web API Examples

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(Node.js) ETrade OAuth1 Authorization (3-legged) Step 2

Demonstrates the final step in 3-legged OAuth1 authorization for the ETrade REST API. Example uses the OAuth1 verifier code that was copy-and-pasted from the browser in the 1st step. The end result of this final OAuth1 step is an access token that can be used to make ETrade REST API calls.

See https://apisb.etrade.com/docs/api/authorization/get_access_token.html

Install Chilkat for Node.js and Electron using npm at

Chilkat npm packages for Node.js

Chilkat npm packages for Electron

on Windows, Linux, MacOSX, and ARM

var os = require('os');
if (os.platform() == 'win32') {  
    if (os.arch() == 'ia32') {
        var chilkat = require('@chilkat/ck-node11-win-ia32');
    } else {
        var chilkat = require('@chilkat/ck-node11-win64'); 
    }
} else if (os.platform() == 'linux') {
    if (os.arch() == 'arm') {
        var chilkat = require('@chilkat/ck-node11-arm');
    } else if (os.arch() == 'x86') {
        var chilkat = require('@chilkat/ck-node11-linux32');
    } else {
        var chilkat = require('@chilkat/ck-node11-linux64');
    }
} else if (os.platform() == 'darwin') {
    var chilkat = require('@chilkat/ck-node11-macosx');
}

function chilkatExample() {

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

    var consumerKey = "ETRADE_CONSUMER_KEY";
    var consumerSecret = "ETRADE_CONSUMER_SECRET";

    var requestTokenUrl = "https://apisb.etrade.com/oauth/request_token";
    var authorizeUrl = "https://us.etrade.com/e/t/etws/authorize";
    var accessTokenUrl = "https://apisb.etrade.com/oauth/access_token";

    var http = new chilkat.Http();
    var success = true;

    http.OAuth1 = true;
    http.OAuthConsumerKey = consumerKey;
    http.OAuthConsumerSecret = consumerSecret;
    http.OAuthCallback = "oob";

    var jsonRequestToken = new chilkat.JsonObject();
    success = jsonRequestToken.LoadFile("qa_data/tokens/etrade_request_token.json");
    var requestToken = jsonRequestToken.StringOf("oauth_token");
    var requestTokenSecret = jsonRequestToken.StringOf("oauth_token_secret");

    // ------------------------------------------------------------------------------
    // Exchange the OAuth Request Token for an OAuth Access Token.

    http.OAuthToken = requestToken;
    http.OAuthTokenSecret = requestTokenSecret;

    // This is the verifier that was interactively copy-and-pasted from the browser back to our app.
    http.OAuthVerifier = "NJ07S";

    // resp: HttpResponse
    var resp = http.QuickGetObj(accessTokenUrl);
    if (http.LastMethodSuccess !== true) {
        console.log(http.LastErrorText);
        return;
    }

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

    // If successful, the resp.BodyStr contains something like this:
    // oauth_token=85123455-fF41296Bi3daM8eCo9Y5vZabcdxXpRv864plYPOjr&oauth_token_secret=afiYJOgabcdSfGae7BDvJVVTwys8fUGpra5guZxbmFBZo
    console.log(resp.BodyStr);

    var hashTab = new chilkat.Hashtable();
    hashTab.AddQueryParams(resp.BodyStr);

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

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

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

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

    console.log("Success.");

}

chilkatExample();

 

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