This sample web application connects to your GitHub account using the Apps Script OAuth2 library and displays some information about the repositories you own. It demonstrates some best practices for using this library in a web app.

You can easily setup your own copy of this sample using the clasp command line tool. Install it and run clasp login before executing the commands below.

1. Run the following commands in this directory:

   clasp create "Sample Web App"
   clasp push
   clasp open

2. In the opened script editor, run the function logRedirectUri. Open the logs (View > Logs) and copy the URL shown.
3. Open the GitHub Developer console and create a new OAuth App. Paste the URL you copied above into the field Authorization callback URL.
4. Edit the file Code.gs and uncomment the lines defining the variables CLIENT_ID and CLIENT_SECRET. Paste the corresponding values from the GitHub developer console into those variables.
5. Run the following commands:

   clasp deploy

6. Copy the deployment ID from the command line and insert it into the following URL: https://script.google.com/macros/s/<DEPLOYMENT_ID>/exec. Open that URL in your browser.

This web app uses the intercom.js library to communicate between tabs / windows. Specifically, the callback page sends a message to the web app letting it know when the authorization flow has completed, so it can start updating its contents.

This web app uses the Angular 1 framework to make it easier to update the page dynamically. It's use is not required, and many other JavaScript frameworks would work just as well.