Caching Resources

With the Caching Resources policy it is possible to cache requests based on their URL path, HTTP method and HTTP status code. This allows reducing overall traffic to the backend API.
The size of the cache to be used can be defined in the Advanced API Management Settings.

If you want to cache POST requests, you have to enable stateful request payload inspection in your API Implementation.

caching_resources_policy.png

Configuration Options

All rules that have been defined are listed in section Cached Resources.

Global Caching Settings

Option

Description

Allowed Values

Cache API responses for

Specify a duration in seconds for how long the resources are cached (time-to-live).

any long integer

Caching Resources Rule

Option

Description

Allowed Values

Path Pattern

Enter a regular expression that will be used to identify the REST resource to cache. This applies to the resource path from the API endpoint on, e.g. http://bridge.scheer-acme.com:19038/support/supportcases.

a valid regular expression

HTTP Method

Specify a HTTP method to apply the path pattern to.

You will get a hint as soon as you add a rule containing *  or POST:

caching_resources_hint_post.png

*

Cache all allowed methods (see below).

GET

Cache GET requests only.

POST

Cache POST requests only.

HEAD

Cache HEAD requests only.

Status Code

Specify a status code that will be used to identify the REST resource to cache.

*

Cache all status codes.

a specify status code

Cache this specific status code only.

Related Pages:
Related Documentation: