Forum Discussion

Kruts's avatar
Kruts
Experienced Partner
3 years ago

doco makes reference to OAuthLogin.GetAuthorizationCode...where is this class?

following example here Cloud Service – Support for the MYOB family of SME product APIs and have installed the SDK but it is not finding OAuthLogin class from line 6 below   what do I need to refer...
kjm's avatar
kjm
Trusted Cover User

posting from my other now linked dev account

 

I have solved this myself. little bit "surprised" at the lack of support both from myob and community. maybe these forums arent that busy/alive..

 

anyway..got the access code and passed it in..looks like ths SDK has a problem from there on in as I am returned a Bad Request

I have built own classes to extract the tokens using a httpListener and it works fine whic his why Ican verify that I am getting the correct access code

 

If anyone gets stuck like I did PM and I'll be happy to share code..

PhilWherrett's avatar
PhilWherrett
Experienced User
3 years ago

Howdy Again kjm ,

 

I've just started on this implementation myself - sounds like we've headed down the same path using HttpListener - but I'm not sure how to handlethe redirect if the redirect Url is http://desktop as per MYOBs recommendation when creating the API Key.  I can get a code using http://localhost as a redirect Url.

 

I'd be keen to get code examples of your implementation if you're willing to share (I can't seem to work out how to send you a PM :-()?

 

Cheers,

Phil.

  • kjm's avatar
    kjm
    Trusted Cover User
    3 years ago

    Hi PhilWherrett 


    To PM I think just hover over avatar and click on "Send Message" 

     

    I have the redirect set to http://127.0.0.1  I suppose you could modify the host file so that http://desktop resolves to this or localhost but not sure why myob are recommending that. Dont you simply need a socket for the httpListener so that it know where to listen for the response?



    I have this in a in a base class 

    public class BaseAuthenticator
    {

        // ref http://stackoverflow.com/a/3978040
        private static int GetRandomUnusedPort()
        {
            var listener = new TcpListener(IPAddress.Loopback, 0);
            listener.Start();
            var port = ((IPEndPoint)listener.LocalEndpoint).Port;
            listener.Stop();
            return port;
        }

        public string GetRedirectUri => $"http://{IPAddress.Loopback}:{GetRandomUnusedPort()}/";
        
    }

     

     private string GetAuthorizationCode()
        {
            var redirectUri = GetRedirectUri;
            Output("redirect URI: " + redirectUri);

            // Creates an HttpListener to listen for requests on that redirect URI.
            var httpListener = new HttpListener();
            httpListener.Prefixes.Add(redirectUri);
            Output("Listening..");
            httpListener.Start();

            // Creates the OAuth 2.0 authorization request.
            var authorizationRequest = string.Format("{0}?response_type=code&scope=CompanyFile&redirect_uri={1}&client_id={2}",
                AuthorizationCodeEndpoint,
                System.Uri.EscapeDataString(redirectUri),
                ClientId);

            // Opens request in the browser.
            System.Diagnostics.Process.Start(authorizationRequest);

            // Waits for the OAuth authorization response.
            var context = httpListener.GetContext();
                var response = context.Response;


          
}

    then get the response and parse it for the code

    happy to give you the whole code if you're still stuck

    • PhilWherrett's avatar
      PhilWherrett
      Experienced User
      3 years ago

      Howdy kjm ,

       

      Yep I tried to do that for the PM - but the page I get sent to doesn't render properly to allow sending anything:

       

       

      Your code snippets are pretty much what I'm doing so thanks for sharing and confirming that I'm heading in the right direction :-)

       

      I've managed to successfully get a code response and return the company files available so that's good.

       

      Now just need to add the managing of token storage and refresh lifecycle so subsequent calls don't need to go through additional code requests.

       

      Cheers,

      Phil.

      • Hamishjam's avatar
        Hamishjam
        3 years ago

        Hey, I also wound up in MYOB website 404 land sorting this out.  I've played with the code from KJM to spit out the auth code in a .NET core WPF app.  It's a bit rough at this stage but seems to do the trick as a replacement for the lost OAuthLogin.GetAuthorizationCode:

         

        private string GetAuthorizationCode()
{

var redirectUri = $"http://localhost:8080/";
var developerKey = "blah blah";

var AuthorizationCodeEndpoint = "https://secure.myob.com/oauth2/account/authorize";

        // Creates an HttpListener to listen for requests on that redirect URI.
var httpListener = new HttpListener();
httpListener.Prefixes.Add(redirectUri);

// Listening
httpListener.Start();

// Creates the OAuth 2.0 authorization request.
var authorizationRequest = string.Format("{0}?response_type=code&scope=CompanyFile&redirect_uri={1}&client_id={2}",
AuthorizationCodeEndpoint, System.Uri.EscapeDataString(redirectUri),
developerKey);

// Opens request in the browser.
var ps = new ProcessStartInfo(authorizationRequest)
{
UseShellExecute = true,
Verb = "open"
};
Process.Start(ps);

//System.Diagnostics.Process.Start(authorizationRequest);

// Waits for the OAuth authorization response.
var context = httpListener.GetContext();
var request = context.Request;

httpListener.Stop();

var uri = new Uri(request.Url.OriginalString);
var query = System.Web.HttpUtility.ParseQueryString(uri.Query);

var code = query.Get("code");

return code;
}
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