RateLimit.
we specify rate limits in terms of both a human readable wild-card URI and a machine processable
regular expression. The regular expression boundary matcher '^' takes affect after the root URI
path. For example, the regular expression ^/servers would match the bolded portion of the
following URI: https://servers.api.rackspacecloud.com/v1.0/3542812 /servers .
Rate limits are applied in order relative to the verb, going from least to most specific. For
example, although the threshold for POST to /servers is 25 per day, one cannot POST to /servers
more than 10 times within a single minute because the rate limits for any POST is 10/min. In the
event you exceed the thresholds established for your identity, a 413 Rate Control HTTP response
will be returned with a Reply-After header to notify the client when theyagain.