Even more error handling improvements

lib/liudesk_cmdb.rb

@@ -33,8 +33,12 @@ module LiudeskCMDB
       case code
       when "500"
         InternalServerError.new body, code
+      when "403"
+        ForbiddenError.new body, code
       when "404"
         NotFoundError.new body, code
+      when "422"
+        UnprocessableError.new body, code
       else
         RequestError.new body, code
       end
@@ -60,7 +64,9 @@ module LiudeskCMDB
     end
   end
 
+  class ForbiddenError < RequestError; end
   class NotFoundError < RequestError; end
+  class UnprocessableError < RequestError; end
   class InternalServerError < RequestError; end
 
   # Data models

lib/liudesk_cmdb/client.rb

@@ -76,7 +76,14 @@ module LiudeskCMDB
     rescue Net::HTTPFatalError
       raise LiudeskCMDB::RequestError.create(response.message, response.code)
     rescue Net::HTTPClientException
-      body = JSON.parse(response.body) rescue body
+      begin
+        body = JSON.parse(response.body)
+      rescue StandardError => e
+        logger.debug "Failed to parse error response - #{e.class}: #{e}"
+        body = response.body
+        body = response.message if body.nil? || body.empty?
+      end
+
       raise LiudeskCMDB::RequestError.create(body, response.code)
     end