Selecting the APIs to authorizeWith the OAuth 2.0 Playground, you can walk through each step of the OAuth 2.0 flow for server-side web applications: authorizing API scopes (screen shot above), exchanging authorization tokens (screen shot below), refreshing access tokens, and sending authorized requests to API endpoints. At each step, the Playground displays the full HTTP requests and responses.
Exchanging the authorization code for a refresh token and an access tokenThe OAuth Playground can also use custom OAuth endpoints in order to test non-Google APIs that support OAuth 2.0 draft 10.
OAuth configuration screenYou can click the link button to generate a link to a specific Playground state. This allows quick access to replay specific requests at a later time.
Generating a deep link to the playground’s current statePlease feel free to try the OAuth 2.0 Playground. We are happy to receive any feedback, bugs, or questions in the OAuth Playground forum. Cross-posted on the Google Apps Developer Blog