Before using this app, please make sure you do the following:

Note:This sample app is just for reference and works great for Chrome and Firefox. IE throws up some javascript errors so it is advisable to test for the specific browser you are working with and make desired changes.
Update your Client ID, Client Secret, Redirect Url (found on developer.intuit.com) and app environment(prod/sandbox) in web.config
Update your Log file Path in web.config
For this sample app we have used only OAuth flow. There are other sample apps for Oauth2 for SIWI, GetAppNow and C2QB flow on https://github.com/IntuitDeveloper/