Run select id from users limit 1 and save the UUID in a text file
Get the Github CLIENT-ID for the app you have registered in Github
Point your browser to https://github.com/login/oauth/authorize?scope=user:email&client_id=YOURGHCLIENTID&redirect_uri=http://localhost:8080/success_GH_authn_callback/YOUR-UUID-HERE
Your browser should be redirected around and then should get a UUID access token from this program. Save this access-token. You will use it to make authenticated calls to this program.