Add MiddlewareErrors to own file

lib/middleware/beta.rb

@@ -1,17 +1,20 @@
 # frozen_string_literal: true
 
 module OpenAI
-  class BetaMiddleware < Faraday::Middleware
-    BETA_REGEX = %r{^/#{OpenAI.configuration.api_version}/(assistants|batches|threads|vector_stores)}i
+  class MiddlewareBeta < Faraday::Middleware
+    BETA_REGEX = %r{
+      \A/#{OpenAI.configuration.api_version}
+      /(assistants|batches|threads|vector_stores)
+    }ix.freeze
 
     def on_request(env)
-      if env[:url].path.match?(BETA_REGEX)
-        env[:request_headers].merge!(
-          {
-            "OpenAI-Beta" => "assistants=v2"
-          }
-        )
-      end
+      return unless env[:url].path.match?(BETA_REGEX)
+
+      env[:request_headers].merge!(
+        {
+          "OpenAI-Beta" => "assistants=v2"
+        }
+      )
     end
   end
 end

lib/middleware/errors.rb

@@ -0,0 +1,19 @@
+# frozen_string_literal: true
+
+module OpenAI
+  class MiddlewareErrors < Faraday::Middleware
+    def call(env)
+      @app.call(env)
+    rescue Faraday::Error => e
+      raise e unless e.response.is_a?(Hash)
+
+      logger = Logger.new($stdout)
+      logger.formatter = proc do |_severity, _datetime, _progname, msg|
+        "\033[31mOpenAI HTTP Error (spotted in ruby-openai #{VERSION}): #{msg}\n\033[0m"
+      end
+      logger.error(e.response[:body])
+
+      raise e
+    end
+  end
+end

lib/openai.rb

@@ -23,21 +23,8 @@ module OpenAI
   class Error < StandardError; end
   class ConfigurationError < Error; end
 
-  class MiddlewareErrors < Faraday::Middleware
-    def call(env)
-      @app.call(env)
-    rescue Faraday::Error => e
-      raise e unless e.response.is_a?(Hash)
-
-      logger = Logger.new($stdout)
-      logger.formatter = proc do |_severity, _datetime, _progname, msg|
-        "\033[31mOpenAI HTTP Error (spotted in ruby-openai #{VERSION}): #{msg}\n\033[0m"
-      end
-      logger.error(e.response[:body])
-
-      raise e
-    end
-  end
+  autoload :MiddlewareErrors, "middleware/errors"
+  autoload :MiddlewareBeta, "middleware/beta"
 
   class Configuration
     attr_accessor :access_token,
@@ -90,5 +77,3 @@ def self.rough_token_count(content = "")
     [1, estimate].max
   end
 end
-
-require_relative "middleware/beta"

lib/openai/client.rb

@@ -116,7 +116,7 @@ def build_connection(multipart: false)
         faraday.options[:timeout] = @request_timeout
         faraday.request(:multipart) if multipart
         faraday.use MiddlewareErrors if @log_errors
-        faraday.use BetaMiddleware
+        faraday.use MiddlewareBeta
         faraday.response :raise_error
         faraday.response :json
       end