There are two options for trying out the Admin API, either theOAuth 2.0 Playground or theAPIs Explorer.

OAuth 2.0 Playground

Use theOAuth 2.0 Playground to preview an authentication flow, obtainaccess tokens, and also send HTTP requests. To use the OAuth 2.0 Playground:

1. Open theOAuth 2.0 Playground.
2. In Step 1, thehttps://www.googleapis.com/auth/cloud-platform scope ispre-selected for you. ClickAuthorize APIs to start the authentication flow.
3. Follow the "implicit authentication flow" by clickingAllow toauthorize the Google OAuth 2.0 Playground access to yourGoogle Cloud services.

4. In Step 2, clickExchange authorization code for tokens to receive anaccess token.

   Note: You can use these access tokens in HTTP requests that you want torun from the command line, as long as you do so prior to theirexpiration time. For example, use these access tokens to run cURLcommands.

5. In Step 3, theRequest URI field is pre-populated with the example URI:

   https://appengine.googleapis.com/v1/apps/{appsId}/services/default

   You must replace{appsId} with your Google Cloud Platform project IDand then clickSend the request to view the details about thedefault service of your project.

   Use this URI field to send HTTP requests against the resources that youspecify in your project. For more information about specifying resources inrequest URIs, seeREST in the Admin API.

   Tip: You can also clickList possible operations and then scroll to theApp Engine Admin API section to view a list of HTTP request. Ifyou select an operation, it will populate theRequest URI field with atemplate URI, in which you must specify the IDs of your resources beforesending the request.

APIs Explorer

Use theAPIs Explorer to view a list of all the Admin APImethods, fields, and their descriptions. You can then click the items in thelist to generate URIs and send HTTP requests against the resources that youspecify.

Tip: You can also use the APIs Explorer widgets ineach of the API methods, for exampleapps.get.

To use the APIs Explorer:

1. Open theAPIs Explorer.
2. Select the method that you want to try out.
3. Specify the IDs of the resources in your project as well as any supportedfields.
4. ClickExecute to send the HTTP request against your project and thenview both the generated request URI and HTTP response.

What's next

• Accessing the API