lib/google_cloud/authentication.rb


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# frozen_string_literal: true

module GoogleCloud
  class Authentication
    def initialize(scope:)
      @scope = scope
    end

    def generate_access_token(client_email, private_key)
      credentials = Google::Auth::ServiceAccountCredentials.make_creds(
        json_key_io: StringIO.new({ client_email: client_email, private_key: private_key }.to_json),
        scope: @scope
      )
      credentials.fetch_access_token!["access_token"]
    rescue StandardError => e
      ::Gitlab::ErrorTracking.track_exception(e, client_email: client_email)
      nil
    end
  end
end