Improve request error handling

lib/liudesk_cmdb.rb

@@ -29,9 +29,22 @@ module LiudeskCMDB
   class RequestError < Error
     attr_reader :code, :errors
 
+    def self.create(body, code)
+      case code
+      when "404"
+        NotFoundError.new body, code
+      else
+        RequestError.new body, code
+      end
+    end
+
     def initialize(body, code)
       @code = code
-      @errors = body["errors"] || body[:errors]
+      @errors = if body.is_a? String
+                  [{ message: body }]
+                else
+                  body["errors"] || body[:errors]
+                end
 
       super message
     end
@@ -45,6 +58,8 @@ module LiudeskCMDB
     end
   end
 
+  class NotFoundError < RequestError; end
+
   # Data models
   module Models
     def self.const_missing(const)

lib/liudesk_cmdb/client.rb

@@ -75,7 +75,7 @@ module LiudeskCMDB
       response.body
     rescue Net::HTTPClientException
       body = JSON.parse(response.body)
-      raise LiudeskCMDB::RequestError, body, response.code
+      raise LiudeskCMDB::RequestError.create(body, response.code)
     end
 
     def pretty_print_instance_variables