(SQL Server) 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 ActiveX Downloads ActiveX for 32-bit and 64-bit Windows

// Important: See this note about string length limitations for strings returned by sp_OAMethod calls.
//
CREATE PROCEDURE ChilkatSample
AS
BEGIN
    DECLARE @hr int
    DECLARE @iTmp0 int
    DECLARE @sTmp0 nvarchar(4000)
    -- This requires the Chilkat API to have been previously unlocked.
    -- See Global Unlock Sample for sample code.

    DECLARE @consumerKey nvarchar(4000)
    SELECT @consumerKey = 'ETRADE_CONSUMER_KEY'
    DECLARE @consumerSecret nvarchar(4000)
    SELECT @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:
    DECLARE @requestTokenUrl nvarchar(4000)
    SELECT @requestTokenUrl = 'https://apisb.etrade.com/oauth/request_token'

    DECLARE @http int
    EXEC @hr = sp_OACreate 'Chilkat_9_5_0.Http', @http OUT
    IF @hr <> 0
    BEGIN
        PRINT 'Failed to create ActiveX component'
        RETURN
    END

    DECLARE @success int
    SELECT @success = 1

    EXEC sp_OASetProperty @http, 'OAuth1', 1
    EXEC sp_OASetProperty @http, 'OAuthConsumerKey', @consumerKey
    EXEC sp_OASetProperty @http, 'OAuthConsumerSecret', @consumerSecret
    EXEC sp_OASetProperty @http, 'OAuthCallback', 'oob'

    DECLARE @resp int
    EXEC sp_OAMethod @http, 'QuickGetObj', @resp OUT, @requestTokenUrl
    EXEC sp_OAGetProperty @http, 'LastMethodSuccess', @iTmp0 OUT
    IF @iTmp0 <> 1
      BEGIN
        EXEC sp_OAGetProperty @http, 'LastErrorText', @sTmp0 OUT
        PRINT @sTmp0
        EXEC @hr = sp_OADestroy @http
        RETURN
      END

    -- If successful, the resp.BodyStr contains something like this:  
    -- oauth_token=-Wa_KwAAAAAAxfEPAAABV8Qar4Q&oauth_token_secret=OfHY4tZBX2HK4f7yIw76WYdvnl99MVGB&oauth_callback_confirmed=true
    EXEC sp_OAGetProperty @resp, 'BodyStr', @sTmp0 OUT
    PRINT @sTmp0

    DECLARE @hashTab int
    EXEC @hr = sp_OACreate 'Chilkat_9_5_0.Hashtable', @hashTab OUT

    EXEC sp_OAGetProperty @resp, 'BodyStr', @sTmp0 OUT
    EXEC sp_OAMethod @hashTab, 'AddQueryParams', @success OUT, @sTmp0

    DECLARE @requestToken nvarchar(4000)
    EXEC sp_OAMethod @hashTab, 'LookupStr', @requestToken OUT, 'oauth_token'
    DECLARE @requestTokenSecret nvarchar(4000)
    EXEC sp_OAMethod @hashTab, 'LookupStr', @requestTokenSecret OUT, 'oauth_token_secret'
    EXEC sp_OASetProperty @http, 'OAuthTokenSecret', @requestTokenSecret

    EXEC @hr = sp_OADestroy @resp


    PRINT 'oauth_token = ' + @requestToken

    PRINT 'oauth_token_secret = ' + @requestTokenSecret

    -- Save this request token for the next step..
    DECLARE @json int
    EXEC @hr = sp_OACreate 'Chilkat_9_5_0.JsonObject', @json OUT

    EXEC sp_OAMethod @json, 'AppendString', @success OUT, 'oauth_token', @requestToken
    EXEC sp_OAMethod @json, 'AppendString', @success OUT, 'oauth_token_secret', @requestTokenSecret

    DECLARE @fac int
    EXEC @hr = sp_OACreate 'Chilkat_9_5_0.FileAccess', @fac OUT

    EXEC sp_OAMethod @json, 'Emit', @sTmp0 OUT
    EXEC sp_OAMethod @fac, 'WriteEntireTextFile', @success OUT, 'qa_data/tokens/etrade_request_token.json', @sTmp0, 'utf-8', 0

    -- ---------------------------------------------------------------------------

    -- 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.
    DECLARE @authorizeUrl nvarchar(4000)
    SELECT @authorizeUrl = 'https://us.etrade.com/e/t/etws/authorize'

    DECLARE @sbUrlForBrowser int
    EXEC @hr = sp_OACreate 'Chilkat_9_5_0.StringBuilder', @sbUrlForBrowser OUT

    EXEC sp_OAMethod @sbUrlForBrowser, 'Append', @success OUT, @authorizeUrl
    EXEC sp_OAMethod @sbUrlForBrowser, 'Append', @success OUT, '?key='
    EXEC sp_OAMethod @sbUrlForBrowser, 'Append', @success OUT, @consumerKey
    EXEC sp_OAMethod @sbUrlForBrowser, 'Append', @success OUT, '&token='
    EXEC sp_OAMethod @sbUrlForBrowser, 'Append', @success OUT, @requestToken
    DECLARE @url nvarchar(4000)
    EXEC sp_OAMethod @sbUrlForBrowser, 'GetAsString', @url OUT

    -- 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.

    -- 

    EXEC @hr = sp_OADestroy @http
    EXEC @hr = sp_OADestroy @hashTab
    EXEC @hr = sp_OADestroy @json
    EXEC @hr = sp_OADestroy @fac
    EXEC @hr = sp_OADestroy @sbUrlForBrowser


END
GO