Deprecation: Chef REST (CHEF-9)
The Chef::REST class will be removed.
Chef::REST was deprecated in Chef Infra Client 12.7.2, and will be removed
in Chef Infra Client 13.
The Cookstyle cop ChefDeprecations/UsesChefRESTHelpers has been introduced to detect this deprecation.
Remediation
If writing code designed to be run internally to Chef, for example in a
cookbook or a knife plugin, transition to using Chef::ServerAPI. In
most cases this is as simple as creating a Chef::ServerAPI instance
rather than a Chef::REST one.
If writing code to interact with a Chef Infra Server from other code, move to the chef-api gem.