2 files changed, 6 insertions, 4 deletions
diff --git a/actionpack/lib/action_dispatch/http/request.rb b/actionpack/lib/action_dispatch/http/request.rb
index cadbfc88cb..07b3814ca4 100644
--- a/actionpack/lib/action_dispatch/http/request.rb
+++ b/actionpack/lib/action_dispatch/http/request.rb
@@ -50,7 +50,7 @@ module ActionDispatch
       @original_fullpath = nil
       @fullpath          = nil
       @ip                = nil
-      @uuid              = nil
+      @request_id        = nil
     end
 
     def check_path_parameters!
@@ -249,10 +249,12 @@ module ActionDispatch
     #
     # This unique ID is useful for tracing a request from end-to-end as part of logging or debugging.
     # This relies on the rack variable set by the ActionDispatch::RequestId middleware.
-    def uuid
-      @uuid ||= env["action_dispatch.request_id"]
+    def request_id
+      @request_id ||= env["action_dispatch.request_id"]
     end
 
+    alias_method :uuid, :request_id
+
     # Returns the lowercase name of the HTTP server software.
     def server_software
       (@env['SERVER_SOFTWARE'] && /^([a-zA-Z]+)/ =~ @env['SERVER_SOFTWARE']) ? $1.downcase : nil
diff --git a/actionpack/lib/action_dispatch/middleware/request_id.rb b/actionpack/lib/action_dispatch/middleware/request_id.rb
index cf31815c23..b9ca524309 100644
--- a/actionpack/lib/action_dispatch/middleware/request_id.rb
+++ b/actionpack/lib/action_dispatch/middleware/request_id.rb
@@ -3,7 +3,7 @@ require 'active_support/core_ext/string/access'
 
 module ActionDispatch
   # Makes a unique request id available to the action_dispatch.request_id env variable (which is then accessible through
-  # ActionDispatch::Request#uuid) and sends the same id to the client via the X-Request-Id header.
+  # ActionDispatch::Request#uuid or the alias ActionDispatch::Request#request_id) and sends the same id to the client via the X-Request-Id header.
   #
   # The unique request id is either based on the X-Request-Id header in the request, which would typically be generated
   # by a firewall, load balancer, or the web server, or, if this header is not available, a random uuid. If the