Apply a Policy
You can apply a policy either to the entire API (default) or to specific methods and resources of an API.
To apply a policy:
Go to API Manager > API Administration and select the API instance from the details window.
From the left navigation, select Policies > Apply New Policy.
Expand the policy that you want to apply.
Select the policy version and click Configure Policy.
For details about the configuration parameters for each of the policies, see the specific policy documentation.