cfssl/doc/api/endpoint_crl.txt

THE CRL ENDPOINT

Endpoint: /api/v1/cfssl/crl
Method:   GET

Optional URL Query parameters:

    * expiry: a value, in seconds, after which the CRL should expire
      from the moment of the request.

Result:

    The returned result is an empty JSON object

Example:

    $ curl ${CFSSL_HOST}/api/v1/cfssl/crl
    $ curl ${CFSSL_HOST}/api/v1/cfssl/crl?expiry=7200h