1 files changed, 71 insertions, 22 deletions

diff --git a/lib/net/http/request.rb b/lib/net/http/request.rb
index 279316e0b9..4a138572e9 100644
--- a/lib/net/http/request.rb
+++ b/lib/net/http/request.rb
@@ -1,26 +1,76 @@
-# frozen_string_literal: false
+# frozen_string_literal: true
 
-# This class is the base class for \Net::HTTP request classes;
-# it wraps together the request path and the request headers.
-#
+# This class is the base class for \Net::HTTP request classes.
 # The class should not be used directly;
-# instead you should use its subclasses:
-#
-# - \Net::HTTP::Get
-# - \Net::HTTP::Head
-# - \Net::HTTP::Post
-# - \Net::HTTP::Delete
-# - \Net::HTTP::Options
-# - \Net::HTTP::Trace
-# - \Net::HTTP::Patch
-# - \Net::HTTP::Put
-# - \Net::HTTP::Copy
-# - \Net::HTTP::Lock
-# - \Net::HTTP::Mkcol
-# - \Net::HTTP::Move
-# - \Net::HTTP::Propfind
-# - \Net::HTTP::Proppatch
-# - \Net::HTTP::Unlock
+# instead you should use its subclasses, listed below.
+#
+# == Creating a Request
+#
+# An request object may be created with either a URI or a string hostname:
+#
+#   require 'net/http'
+#   uri = URI('https://jsonplaceholder.typicode.com/')
+#   req = Net::HTTP::Get.new(uri)          # => #<Net::HTTP::Get GET>
+#   req = Net::HTTP::Get.new(uri.hostname) # => #<Net::HTTP::Get GET>
+#
+# And with any of the subclasses:
+#
+#   req = Net::HTTP::Head.new(uri) # => #<Net::HTTP::Head HEAD>
+#   req = Net::HTTP::Post.new(uri) # => #<Net::HTTP::Post POST>
+#   req = Net::HTTP::Put.new(uri)  # => #<Net::HTTP::Put PUT>
+#   # ...
+#
+# The new instance is suitable for use as the argument to Net::HTTP#request.
+#
+# == Request Headers
+#
+# A new request object has these header fields by default:
+#
+#   req.to_hash
+#   # =>
+#   {"accept-encoding"=>["gzip;q=1.0,deflate;q=0.6,identity;q=0.3"],
+#   "accept"=>["*/*"],
+#   "user-agent"=>["Ruby"],
+#   "host"=>["jsonplaceholder.typicode.com"]}
+#
+# See:
+#
+# - {Request header Accept-Encoding}[https://en.wikipedia.org/wiki/List_of_HTTP_header_fields#Accept-Encoding]
+#   and {Compression and Decompression}[rdoc-ref:Net::HTTP@Compression+and+Decompression].
+# - {Request header Accept}[https://en.wikipedia.org/wiki/List_of_HTTP_header_fields#accept-request-header].
+# - {Request header User-Agent}[https://en.wikipedia.org/wiki/List_of_HTTP_header_fields#user-agent-request-header].
+# - {Request header Host}[https://en.wikipedia.org/wiki/List_of_HTTP_header_fields#host-request-header].
+#
+# You can add headers or override default headers:
+#
+#   #   res = Net::HTTP::Get.new(uri, {'foo' => '0', 'bar' => '1'})
+#
+# This class (and therefore its subclasses) also includes (indirectly)
+# module Net::HTTPHeader, which gives access to its
+# {methods for setting headers}[rdoc-ref:Net::HTTPHeader@Setters].
+#
+# == Request Subclasses
+#
+# Subclasses for HTTP requests:
+#
+# - Net::HTTP::Get
+# - Net::HTTP::Head
+# - Net::HTTP::Post
+# - Net::HTTP::Put
+# - Net::HTTP::Delete
+# - Net::HTTP::Options
+# - Net::HTTP::Trace
+# - Net::HTTP::Patch
+#
+# Subclasses for WebDAV requests:
+#
+# - Net::HTTP::Propfind
+# - Net::HTTP::Proppatch
+# - Net::HTTP::Mkcol
+# - Net::HTTP::Copy
+# - Net::HTTP::Move
+# - Net::HTTP::Lock
+# - Net::HTTP::Unlock
 #
 class Net::HTTPRequest < Net::HTTPGenericRequest
   # Creates an HTTP request object for +path+.
@@ -36,4 +86,3 @@ class Net::HTTPRequest < Net::HTTPGenericRequest
           path, initheader
   end
 end
-