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# frozen_string_literal: true
module OAuth2
module Strategy
# The Client Credentials Strategy
#
# @see http://datatracker.ietf.org/doc/html/draft-ietf-oauth-v2-15#section-4.4
class ClientCredentials < Base
# Not used for this strategy
#
# @raise [NotImplementedError]
def authorize_url
raise(NotImplementedError, 'The authorization endpoint is not used in this strategy')
end
# Retrieve an access token given the specified client.
#
# @param [Hash] params additional params
# @param [Hash] opts options
def get_token(params = {}, opts = {})
params = params.merge('grant_type' => 'client_credentials')
@client.get_token(params, opts)
end
end
end
end
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