Use zeitwerk to load gem

grape_logging.gemspec

@@ -22,4 +22,5 @@ Gem::Specification.new do |spec|
 
   spec.add_dependency 'grape', '>= 2.4.0'
   spec.add_dependency 'rack'
+  spec.add_dependency 'zeitwerk'
 end

lib/grape_logging.rb

@@ -1,17 +1,12 @@
-require 'grape_logging/multi_io'
-require 'grape_logging/version'
-require 'grape_logging/formatters/default'
-require 'grape_logging/formatters/json'
-require 'grape_logging/formatters/lograge'
-require 'grape_logging/formatters/logstash'
-require 'grape_logging/formatters/rails'
-require 'grape_logging/loggers/base'
-require 'grape_logging/loggers/response'
-require 'grape_logging/loggers/filter_parameters'
-require 'grape_logging/loggers/client_env'
-require 'grape_logging/loggers/request_headers'
-require 'grape_logging/reporters/active_support_reporter'
-require 'grape_logging/reporters/logger_reporter'
-require 'grape_logging/timings'
-require 'grape_logging/middleware/request_logger'
-require 'grape_logging/util/parameter_filter'
+require 'grape'
+require 'rack/utils'
+require 'zeitwerk'
+
+# load zeitwerk
+Zeitwerk::Loader.for_gem.tap do |loader|
+  loader.inflector.inflect 'multi_io' => 'MultiIO'
+  loader.setup
+end
+
+module GrapeLogging
+end

lib/grape_logging/formatters/rails.rb

@@ -1,5 +1,3 @@
-require 'rack/utils'
-
 module GrapeLogging
   module Formatters
     class Rails

lib/grape_logging/loggers/filter_parameters.rb

@@ -16,7 +16,7 @@ module GrapeLogging
       private
 
       def parameter_filter
-        @parameter_filter ||= ParameterFilter.new(@replacement, @filter_parameters)
+        @parameter_filter ||= GrapeLogging::Util::ParameterFilter.new(@replacement, @filter_parameters)
       end
 
       def safe_parameters(request)

lib/grape_logging/middleware/request_logger.rb

@@ -1,5 +1,3 @@
-require 'grape'
-
 module GrapeLogging
   module Middleware
     class RequestLogger < Grape::Middleware::Base

lib/grape_logging/reporters/active_support_reporter.rb

@@ -1,3 +1,4 @@
+module GrapeLogging
   module Reporters
     class ActiveSupportReporter
       def initialize(instrumentation_key)
@@ -9,3 +10,4 @@ module Reporters
       end
     end
   end
+end

lib/grape_logging/reporters/logger_reporter.rb

@@ -1,3 +1,4 @@
+module GrapeLogging
   module Reporters
     class LoggerReporter
       def initialize(logger, formatter, log_level)
@@ -11,3 +12,4 @@ module Reporters
       end
     end
   end
+end

lib/grape_logging/util/parameter_filter.rb

@@ -1,3 +1,5 @@
+module GrapeLogging
+  module Util
     if defined?(Rails.application)
       if Gem::Version.new(Rails.version) < Gem::Version.new('6.0.0')
         class ParameterFilter < ActionDispatch::Http::ParameterFilter
@@ -100,3 +102,5 @@ else
         end
       end
     end
+  end
+end