Add a lot of YARD docs to various classes.

Also switch to Markdown as the markup language, rather than rdoc.

.yardopts

@@ -1,3 +1,4 @@
+--markup markdown
 -
 history.md
 LICENSE

Rakefile

@@ -123,3 +123,8 @@ end
 require 'yard'
 YARD::Rake::YardocTask.new do |t|
 end
+
+desc 'Run YARD documentation server, reload with changes'
+task :yardserver do
+  sh 'yard server --reload'
+end

lib/restclient.rb

@@ -18,11 +18,31 @@ require File.dirname(__FILE__) + '/restclient/windows'
 
 # This module's static methods are the entry point for using the REST client.
 #
-#   # GET
+# These helpers provide a concise way to issue simple requests with headers. If
-#   xml = RestClient.get 'http://example.com/resource'
+# you need to set other options on a request (e.g. timeout, SSL options, etc.)
-#   jpg = RestClient.get 'http://example.com/resource', :accept => 'image/jpg'
+# then use {RestClient::Request.execute}, which supports all of these options.
 #
-#   # authentication and SSL
+# The {.get}, {.head}, {.delete}, and {.options} methods take a URL String and
+# optional HTTP headers Hash.
+#
+# The {.post}, {.put}, and {.patch} methods take a URL String, a payload, and
+# an optional HTTP headers Hash.
+#
+# All of these helpers are just thin wrappers around
+# {RestClient::Request.execute RestClient::Request.execute}.
+#
+#
+# ```ruby
+# # Simple GET request, potentially with headers.
+# RestClient.get('http://example.com/')
+# # => <RestClient::Response 200 "<!doctype h...">
+#
+# RestClient.get('http://example.com/resource', accept: 'image/jpg')
+#
+# RestClient.get('http://example.com', 'If-Modified-Since': 'Sat, 10 Aug 2013 10:23:00 GMT')
+# # raises RestClient::NotModified: 304 Not Modified
+#
+# # Basic authentication and SSL
 # RestClient.get 'https://user:password@example.com/private/resource'
 #
 # # POST or PUT with a hash sends parameters as a urlencoded form body
@@ -39,26 +59,47 @@ require File.dirname(__FILE__) + '/restclient/windows'
 # # DELETE
 # RestClient.delete 'http://example.com/resource'
 #
-#   # retreive the response http code and headers
+# # Retrieve the response http code and headers
 # res = RestClient.get 'http://example.com/some.jpg'
 # res.code                    # => 200
 # res.headers[:content_type]  # => 'image/jpg'
 #
 # # HEAD
 # RestClient.head('http://example.com').headers
+# ```
 #
 # To use with a proxy, just set RestClient.proxy to the proper http proxy:
 #
 #     RestClient.proxy = "http://proxy.example.com/"
 #
-# Or inherit the proxy from the environment:
+# Proxies can also be set via the `http_proxy`/`https_proxy` environment
+# variables, or with the `:proxy` option on an individual {RestClient::Request}.
 #
-#   RestClient.proxy = ENV['http_proxy']
+# For live tests of RestClient, try using https://httpbin.org/. This service
+# echoes back information about the HTTP request.
 #
-# For live tests of RestClient, try using http://rest-test.heroku.com, which echoes back information about the rest call:
+#     r =  RestClient.post('https://httpbin.org/post', foo: 'bar')
-#
+#     # => <RestClient::Response 200 "{\n  \"args\":...">
-#   >> RestClient.put 'http://rest-test.heroku.com/resource', :foo => 'baz'
+#     puts r.body
-#   => "PUT http://rest-test.heroku.com/resource with a 7 byte payload, content type application/x-www-form-urlencoded {\"foo\"=>\"baz\"}"
+#     {
+#       "args": {},
+#       "data": "",
+#       "files": {},
+#       "form": {
+#         "foo": "bar"
+#       },
+#       "headers": {
+#         "Accept": "*/*",
+#         "Accept-Encoding": "gzip;q=1.0,deflate;q=0.6,identity;q=0.3",
+#         "Connection": "close",
+#         "Content-Length": "7",
+#         "Content-Type": "application/x-www-form-urlencoded",
+#         "Host": "httpbin.org",
+#         "User-Agent": "rest-client/2.1.0 (linux-gnu x86_64) ruby/2.3.3p222"
+#       },
+#       "json": null,
+#       "url": "https://httpbin.org/post"
+#     }
 #
 module RestClient
 
@@ -96,6 +137,10 @@ module RestClient
     @proxy ||= nil
   end
 
+  # Set a proxy URL to use for all requests.
+  #
+  # @param value [String] The proxy URL.
+  #
   def self.proxy=(value)
     @proxy = value
     @proxy_set = true
@@ -113,12 +158,21 @@ module RestClient
   # Setup the log for RestClient calls.
   # Value should be a logger but can can be stdout, stderr, or a filename.
   # You can also configure logging by the environment variable RESTCLIENT_LOG.
+  #
+  # @param log [Logger, #<<, String] The log to write to. See {.create_log}
+  #
   def self.log= log
     @@log = create_log log
   end
 
-  # Create a log that respond to << like a logger
+  # Create a log that responds to `<<` like a Logger.
-  # param can be 'stdout', 'stderr', a string (then we will log to that file) or a logger (then we return it)
+  #
+  # @param param [Logger, #<<, String, nil] The log to write to. Should be a
+  #   Logger, IO, or other object with a `<<` method. If param is a String, it
+  #   will be treated as a filename and that file will be opened as a log file.
+  #   The special Strings `"stdout"` and `"stderr"` will log to `STDOUT` and
+  #   `STDERR`.
+  #
   def self.create_log param
     if param
       if param.is_a? String
@@ -158,10 +212,16 @@ module RestClient
 
   @@log = nil
 
-  def self.log # :nodoc:
+  # The RestClient global logger. This will be used for all requests unless a
+  # `:log` option is set on the individual request.
+  #
+  # @see log=
+  #
+  def self.log
     @@env_log || @@log
   end
 
+  # Array of procs executed prior to each request.
   @@before_execution_procs = []
 
   # Add a Proc to be called before each request in executed.
@@ -176,7 +236,8 @@ module RestClient
     @@before_execution_procs = []
   end
 
-  def self.before_execution_procs # :nodoc:
+  # Array of procs executed prior to each request.
+  def self.before_execution_procs
     @@before_execution_procs
   end
 

lib/restclient/abstract_response.rb

@@ -3,6 +3,17 @@ require 'http-cookie'
 
 module RestClient
 
+  # The AbstractResponse module provides common functionality for RestClient
+  # responses. It is included by {RestClient::Response} and
+  # {RestClient::RawResponse}.
+  #
+  # Classes that include AbstractResponse should call {response_set_vars} as
+  # part of their `#initialize` method.
+  #
+  # Ideally this would have been a parent class, not a module. But the original
+  # RestClient API made {Response} be a subclass of `String`, so we are
+  # stuck with that for backwards compatibility.
+  #
   module AbstractResponse
 
     attr_reader :net_http_res, :request, :start_time, :end_time, :duration
@@ -12,10 +23,17 @@ module RestClient
     end
 
     # Logger from the request, potentially nil.
+    #
+    # @see Request#log
+    #
     def log
       request.log
     end
 
+    # Write log information about the response.
+    #
+    # @return [void]
+    #
     def log_response
       return unless log
 
@@ -27,21 +45,39 @@ module RestClient
     end
 
     # HTTP status code
+    #
+    # @return [Integer]
+    #
     def code
       @code ||= @net_http_res.code.to_i
     end
 
+    # An array of prior responses in the redirection chain, if any. If
+    # RestClient followed any redirects, this provides a way to see each
+    # individual response in the chain.
+    #
+    # @return [Array<Response>]
+    #
+    # @see Request#redirection_history
+    #
     def history
       @history ||= request.redirection_history || []
     end
 
     # A hash of the headers, beautified with symbols and underscores.
-    # e.g. "Content-type" will become :content_type.
+    # e.g. `"Content-type"` will become `:content_type`.
+    #
+    # @see beautify_headers
+    #
+    # @return [Hash]
+    #
     def headers
       @headers ||= AbstractResponse.beautify_headers(@net_http_res.to_hash)
     end
 
     # The raw headers.
+    #
+    # @return [Hash]
     def raw_headers
       @raw_headers ||= @net_http_res.to_hash
     end
@@ -49,6 +85,9 @@ module RestClient
     # @param [Net::HTTPResponse] net_http_res
     # @param [RestClient::Request] request
     # @param [Time] start_time
+    #
+    # @return [void]
+    #
     def response_set_vars(net_http_res, request, start_time)
       @net_http_res = net_http_res
       @request = request
@@ -67,9 +106,9 @@ module RestClient
 
     # Hash of cookies extracted from response headers.
     #
-    # NB: This will return only cookies whose domain matches this request, and
+    # **Note:** This will return only cookies whose domain matches this
-    # may not even return all of those cookies if there are duplicate names.
+    # request, and may not even return all of those cookies if there are
-    # Use the full cookie_jar for more nuanced access.
+    # duplicate names. Use the full cookie_jar for more nuanced access.
     #
     # @see #cookie_jar
     #
@@ -104,11 +143,20 @@ module RestClient
     #
     # For 20x status codes: return the response itself
     #
-    # For 30x status codes:
+    # For 30x status codes, if there is a `Location` header and we have not yet
-    #   301, 302, 307: redirect GET / HEAD if there is a Location header
+    # reached {Request#max_redirects}:
-    #   303: redirect, changing method to GET, if there is a Location header
     #
-    # For all other responses, raise a response exception
+    # - 301, 302, 307: redirect GET / HEAD requests
+    # - 303: redirect, changing method to GET
+    #
+    # For all other responses, raise a response exception, a subclass of
+    # {ExceptionWithResponse} corresponding to the HTTP status code.
+    #
+    # For example, HTTP 404 => {RestClient::NotFound RestClient::NotFound}
+    #
+    # @raise [ExceptionWithResponse] for non-20x status codes, the exception
+    #   from {RestClient::Exceptions::EXCEPTIONS_MAP} based on
+    #   {RestClient::STATUSES} will be thrown.
     #
     def return!(&block)
       case code
@@ -130,11 +178,13 @@ module RestClient
       end
     end
 
+    # @deprecated Use {code} instead.
     def to_i
-      warn('warning: calling Response#to_i is not recommended')
+      warn('warning: calling Response#to_i is deprecated. Use .code instead.')
       super
     end
 
+    # @return [String]
     def description
       "#{code} #{STATUSES[code]} | #{(headers[:content_type] || '').gsub(/;.*$/, '')} #{size} bytes\n"
     end

lib/restclient/exceptions.rb

@@ -2,18 +2,26 @@ module RestClient
 
   # Hash of HTTP status code => message.
   #
-  # 1xx: Informational - Request received, continuing process
+  # ### HTTP status code families:
-  # 2xx: Success - The action was successfully received, understood, and
+  #
+  # - 1xx: Informational --- Request received, continuing process
+  # - 2xx: Success --- The action was successfully received, understood, and
   #                    accepted
-  # 3xx: Redirection - Further action must be taken in order to complete the
+  # - 3xx: Redirection --- Further action must be taken in order to complete
-  #      request
+  #                        the request
-  # 4xx: Client Error - The request contains bad syntax or cannot be fulfilled
+  # - 4xx: Client Error --- The request contains bad syntax or cannot be
-  # 5xx: Server Error - The server failed to fulfill an apparently valid
+  #                         fulfilled
+  # - 5xx: Server Error --- The server failed to fulfill an apparently valid
   #                         request
   #
+  # This hash is used to populate all of the individual response exception
+  # classes, which are collected in {RestClient::Exceptions::EXCEPTIONS_MAP}.
+  #
   # @see
   #   http://www.iana.org/assignments/http-status-codes/http-status-codes.xhtml
   #
+  # **TODO:** Move these out of the top-level namespace and into {Exceptions}.
+  #
   STATUSES = {100 => 'Continue',
               101 => 'Switching Protocols',
               102 => 'Processing', #WebDAV
@@ -84,6 +92,11 @@ module RestClient
               511 => 'Network Authentication Required', # RFC6585
   }
 
+  # This Hash contains a mapping of aliases for the canonical HTTP status code
+  # classes that are preserved for backwards compatibility. For example,
+  # `RestClient::ResourceNotFound` is an alias for `RestClient::NotFound`.
+  #
+  # **TODO:** Move this out of the top-level namespace and into {Exceptions}.
   STATUSES_COMPATIBILITY = {
     # The RFCs all specify "Not Found", but "Resource Not Found" was used in
     # earlier RestClient releases.
@@ -101,16 +114,22 @@ module RestClient
 
 
   # This is the base RestClient exception class. Rescue it if you want to
-  # catch any exception that your request might raise
+  # catch any exception that your request might raise. Note that the underlying
-  # You can get the status code by e.http_code, or see anything about the
+  # network and socket libraries may raise other exceptions.
-  # response via e.response.
+  #
-  # For example, the entire result body (which is
+  # You can get the status code with {#http_code}, or see anything about the
-  # probably an HTML error page) is e.response.
+  # response via {#response}.
+  #
+  # For more detailed information from the response, just call the
+  # corresponding methods on the response object (e.g. `e.response.history`).
+  #
   class Exception < RuntimeError
     attr_accessor :response
     attr_accessor :original_exception
     attr_writer :message
 
+    # @param response [RestClient::Response, RestClient::RawResponse]
+    #
     def initialize response = nil, initial_response_code = nil
       @response = response
       @message = nil
@@ -126,10 +145,14 @@ module RestClient
       end
     end
 
+    # @see Response#headers
+    # @return [Hash, nil]
     def http_headers
       @response.headers if @response
     end
 
+    # @see Response#body
+    # @return [String, nil]
     def http_body
       @response.body if @response
     end
@@ -169,7 +192,9 @@ module RestClient
   # http://www.w3.org/Protocols/rfc2616/rfc2616-sec10.html
   #
   module Exceptions
-    # Map http status codes to the corresponding exception class
+    # Map http status codes to the corresponding exception class.
+    # This Hash is populated when the library is loaded, so values won't appear
+    # in the YARD documentation.
     EXCEPTIONS_MAP = {}
   end
 

lib/restclient/payload.rb

@@ -10,6 +10,9 @@ rescue LoadError
 end
 
 module RestClient
+
+  # The Payload module contains several different classes used to process and
+  # represent different types of HTTP bodies / payloads.
   module Payload
     extend self
 
@@ -56,6 +59,7 @@ module RestClient
       end
     end
 
+    # The base class for all the Payload classes.
     class Base
       def initialize(params)
         build_stream(params)

lib/restclient/platform.rb

@@ -29,10 +29,20 @@ module RestClient
       RUBY_ENGINE == 'jruby'
     end
 
+    # Return the host architecture and CPU from `RbConfig::CONFIG`.
+    #
+    # @return [String]
     def self.architecture
       "#{RbConfig::CONFIG['host_os']} #{RbConfig::CONFIG['host_cpu']}"
     end
 
+    # Return information about the ruby version from `RUBY_ENGINE`,
+    # `RUBY_VERSION`, and `RUBY_PATCHLEVEL`.
+    #
+    # When running in jruby, also return the jruby version.
+    #
+    # @return [String]
+    #
     def self.ruby_agent_version
       case RUBY_ENGINE
       when 'jruby'
@@ -42,6 +52,17 @@ module RestClient
       end
     end
 
+    # Return a reasonable string for the `User-Agent` HTTP header.
+    #
+    # @example
+    #   "rest-client/2.1.0 (linux-gnu x86_64) ruby/2.3.3p222"
+    #
+    # @return [String]
+    #
+    # @see VERSION RestClient::VERSION
+    # @see .architecture
+    # @see .ruby_agent_version
+    #
     def self.default_user_agent
       "rest-client/#{VERSION} (#{architecture}) #{ruby_agent_version}"
     end

lib/restclient/raw_response.rb

@@ -1,14 +1,35 @@
 module RestClient
-  # The response from RestClient on a raw request looks like a string, but is
+
-  # actually one of these.  99% of the time you're making a rest call all you
+  # {RawResponse} is used to represent RestClient responses when
-  # care about is the body, but on the occassion you want to fetch the
+  # `:raw_response => true` is passed to the {Request}.
-  # headers you can:
   #
-  #   RestClient.get('http://example.com').headers[:content_type]
+  # Instead of processing the response data in various ways, the `RawResponse`
+  # downloads the response body to a `Tempfile` and does little processing of
+  # the underlying `Net::HTTPResponse` object. This is especially useful for
+  # large downloads when you don't want to load the entire response into
+  # memory.
+  #
+  # Use {#file} to access the `Tempfile` containing the raw response body. The
+  # file path is accessible at `.file.path`.
+  #
+  # **Note that like all `Tempfile` objects, the {#file} will be deleted when
+  # the object is dereferenced.**
+  #
+  # This class brings in all the common functionality from {AbstractResponse},
+  # such as {AbstractResponse.headers}, etc.
+  #
+  # @example
+  #
+  #   r = RestClient::Request.execute(method: :get, url: 'http://example.com', raw_response: true)
+  #   r.code
+  #   # => 200
+  #   puts r.file.inspect
+  #   # => #<Tempfile:/tmp/rest-client.20170102-15213-b8kgcj>
+  #   r.file.path
+  #   # => "/tmp/rest-client.20170102-15213-b8kgcj"
+  #   r.size
+  #   # => 1270
   #
-  # In addition, if you do not use the response as a string, you can access
-  # a Tempfile object at res.file, which contains the path to the raw
-  # downloaded request body.
   class RawResponse
 
     include AbstractResponse
@@ -36,11 +57,18 @@ module RestClient
       body
     end
 
+    # Read the response body from {#file} into memory and return as a String.
+    #
+    # @return [String]
+    #
     def body
       @file.rewind
       @file.read
     end
 
+    # Return the response body file size.
+    #
+    # @return [Integer]
     def size
       file.size
     end

lib/restclient/request.rb

@@ -15,17 +15,20 @@ module RestClient
   # call it directly if you'd like to use a method not supported by the
   # main API.
   #
-  # @example using {.execute} class method:
+  # @example Using {.execute} class method:
   #   RestClient::Request.execute(method: :head, url: 'http://example.com')
   #
-  # @example initializing {#initialize} and then calling {#execute}:
+  # @example Initializing {#initialize} and then calling {#execute}:
   #   req = RestClient::Request.new(method: :get, url: 'http://example.com', timeout: 5)
   #   req.execute
   #
   # The `:method` and `:url` parameters are required. All others are optional.
   #
-  # @deprecated *Note:*
+  # **See {#initialize} for the full list of available options.**
-  #   The RestClient API has a very ugly misfeature that dates to the original
+  #
+  # **Deprecation note:**
+  # Certain options are accepted as keys in the headers hash, but doing so is
+  # deprecated. This misfeature in the RestClient API dates to the original
   # design, where certain options are destructively pulled out of the
   # `:headers` hash that normally contains HTTP request headers. This is
   # because in the top-level helper shortcuts like {RestClient.get}, the only
@@ -46,12 +49,18 @@ module RestClient
 
     # Shorthand for initializing a Request and executing it.
     #
-    # RestClient::Request.execute is a great way to pass complex options.
+    # `RestClient::Request.execute` is the recommended way to pass complex
+    # options. It is shorthand for `RestClient::Request.new(args).execute`.
     #
-    # For example:
+    # @example
-    #     RestClient::Request.execute(method: get, url: 'http://example.com', timeout: 5)
+    #   RestClient::Request.execute(method: :get, url: 'http://example.com', timeout: 5)
     #
-    # @see RestClient::Request
+    # @example
+    #   RestClient::Request.execute(method: :get, url: 'http://httpbin.org/redirect/2', max_redirects: 1)
+    #
+    # @see RestClient::Request#initialize
+    #
+    # @return [RestClient::Response, RestClient::RawResponse]
     #
     def self.execute(args, & block)
       new(args).execute(& block)
@@ -71,15 +80,15 @@ module RestClient
     #
     # @param [Hash] args
     #
-    # @option args [String] :url *Required.* The HTTP URL to request.
+    # @option args [String] :url **Required.** The HTTP URL to request.
-    # @option args [String, Symbol] :method *Required.* The HTTP request method
+    # @option args [String, Symbol] :method **Required.** The HTTP request method
-    #   or verb, such as "GET", "HEAD", or "POST".
+    #   or verb, such as `"GET"`, `"HEAD"`, or `"POST"`.
     #
     # @option args [Hash] :headers The HTTP request headers. Keys may be
     #   Symbol or String. Symbol keys will be converted to String header names
     #   by {#stringify_headers}. For backwards compatibility, this Hash
     #   recognizes certain keys that will be pulled out as options, but relying
-    #   on this is deprecated and strongly discouraged.
+    #   on this behavior is deprecated and strongly discouraged.
     # @option args :cookies [HTTP::CookieJar, Hash{String, Symbol => String},
     #   Array<HTTP::Cookie>] The cookies to be sent with the request. This can
     #   be passed as a Hash, an array of HTTP::Cookie objects, or as a full
@@ -121,10 +130,10 @@ module RestClient
     #   timeout on an individual network read, but does not limit the overall
     #   duration of the request so long as the server continues sending data at
     #   a trickle. Pass nil to disable the timeout. See
-    #   {Net::HTTP#read_timeout}.
+    #   `Net::HTTP#read_timeout`.
     # @option args [Numeric, nil] :open_timeout Number of seconds to wait for
     #   the connection to be established. Pass nil to disable the timeout. See
-    #   {Net::HTTP#open_timeout}.
+    #   `Net::HTTP#open_timeout`.
     # @option args [Numeric, nil] :timeout Set both `:read_timeout` and
     #   `:open_timeout`
     # @option args :ssl_client_cert
@@ -258,7 +267,7 @@ module RestClient
 
     # Extract the query parameters and append them to the url
     #
-    # Look through the headers hash for a :params option (case-insensitive,
+    # Look through the headers hash for a `:params` option (case-insensitive,
     # may be string or symbol). If present and the value is a Hash or
     # RestClient::ParamsArray, *delete* the key/value pair from the headers
     # hash and encode the value into a query string. Append this query string
@@ -266,10 +275,12 @@ module RestClient
     #
     # @param [String] url
     # @param [Hash] headers An options/headers hash to process. Mutation
-    #   warning: the params key may be removed if present!
+    #   warning: the `params` key may be removed if present!
     #
     # @return [String] resulting url with query string
     #
+    # @api private
+    #
     def process_url_params(url, headers)
       url_params = nil
 
@@ -342,19 +353,21 @@ module RestClient
     end
 
     # Process cookies passed as hash or as HTTP::CookieJar. For backwards
-    # compatibility, these may be passed as a :cookies option masquerading
+    # compatibility, these may be passed as a `:cookies` option masquerading
-    # inside the headers hash. To avoid confusion, if :cookies is passed in
+    # inside the headers hash. To avoid confusion, if `:cookies` is passed in
-    # both headers and Request#initialize, raise an error.
+    # both headers and {#initialize}, raise an error.
     #
-    # :cookies may be a:
+    # `:cookies` may be a:
-    # - Hash{String/Symbol => String}
+    #
-    # - Array<HTTP::Cookie>
+    # - `Hash{String/Symbol => String}`
-    # - HTTP::CookieJar
+    # - `Array<HTTP::Cookie>`
+    # - `HTTP::CookieJar`
+    #
+    # **Passing as a hash:**
     #
-    # Passing as a hash:
     #   Keys may be symbols or strings. Values must be strings.
     #   Infer the domain name from the request URI and allow subdomains (as
-    #   though '.example.com' had been set in a Set-Cookie header). Assume a
+    #   though '.example.com' had been set in a `Set-Cookie` header). Assume a
     #   path of '/'.
     #
     #     RestClient::Request.new(url: 'http://example.com', method: :get,
@@ -362,28 +375,30 @@ module RestClient
     #     )
     #
     # results in cookies as though set from the server by:
+    #
     #     Set-Cookie: foo=Value; Domain=.example.com; Path=/
     #     Set-Cookie: bar=123; Domain=.example.com; Path=/
     #
     # which yields a client cookie header of:
+    #
     #     Cookie: foo=Value; bar=123
     #
-    # Passing as HTTP::CookieJar, which will be passed through directly:
+    # **Passing as HTTP::CookieJar, which will be passed through directly:**
     #
     #     jar = HTTP::CookieJar.new
     #     jar.add(HTTP::Cookie.new('foo', 'Value', domain: 'example.com',
     #                              path: '/', for_domain: false))
     #
-    #     RestClient::Request.new(..., :cookies => jar)
+    #     RestClient::Request.new('...', :cookies => jar)
     #
     # @param [URI::HTTP] uri The URI for the request. This will be used to
     #   infer the domain name for cookies passed as strings in a hash. To avoid
-    # this implicit behavior, pass a full cookie jar or use HTTP::Cookie hash
+    #   this implicit behavior, pass a full cookie jar or use `HTTP::Cookie`
-    # values.
+    #   hash values.
-    # @param [Hash] headers The headers hash from which to pull the :cookies
+    # @param [Hash] headers The headers hash from which to pull the `:cookies`
-    #   option. MUTATION NOTE: This key will be deleted from the hash if
+    #   option. **MUTATION NOTE:** This key will be deleted from the hash if
-    #   present.
+    #   present. Passing cookies in this way is deprecated.
-    # @param [Hash] args The options passed to Request#initialize. This hash
+    # @param [Hash] args The options passed to {Request#initialize}. This hash
     #   will be used as another potential source for the :cookies key.
     #   These args will not be mutated.
     #
@@ -439,19 +454,20 @@ module RestClient
     end
 
     # Generate headers for use by a request. Header keys will be stringified
-    # using `#stringify_headers` to normalize them as capitalized strings.
+    # using {#stringify_headers} to normalize them as capitalized strings.
     #
     # The final headers consist of:
-    #   - default headers from #default_headers
-    #   - user_headers provided here
-    #   - headers from the payload object (e.g. Content-Type, Content-Lenth)
-    #   - cookie headers from #make_cookie_header
     #
-    # BUG: stringify_headers does not alter the capitalization of headers that
+    #   - default headers from {#default_headers}
-    # are passed as strings, it only normalizes those passed as symbols. This
+    #   - `user_headers` provided here
-    # behavior will probably remain for a while for compatibility, but it means
+    #   - headers from the payload object (e.g. Content-Type, Content-Lenth)
-    # that the warnings that attempt to detect accidental header overrides may
+    #   - cookie headers from {#make_cookie_header}
-    # not always work.
+    #
+    # **BUG:** stringify_headers does not alter the capitalization of headers
+    # that are passed as strings, it only normalizes those passed as symbols.
+    # This behavior will probably remain for a while for compatibility, but it
+    # means that the warnings that attempt to detect accidental header
+    # overrides may not always work.
     # https://github.com/rest-client/rest-client/issues/599
     #
     # @param [Hash] user_headers User-provided headers to include
@@ -494,7 +510,7 @@ module RestClient
     end
 
     # The proxy URI for this request. If `:proxy` was provided on this request,
-    # use it over `RestClient.proxy`.
+    # use it over {RestClient.proxy}.
     #
     # Return false if a proxy was explicitly set and is falsy.
     #
@@ -518,6 +534,17 @@ module RestClient
       end
     end
 
+    # Create a new Net::HTTP object representing a connection to a server
+    # without actually opening the connection. This method will set up an HTTP
+    # proxy according to {#proxy_uri}.
+    #
+    # @param hostname [String]
+    # @param port [Integer]
+    #
+    # @return [Net::HTTP]
+    #
+    # @api private
+    #
     def net_http_object(hostname, port)
       p_uri = proxy_uri
 
@@ -534,10 +561,28 @@ module RestClient
       end
     end
 
+    # Find the Net::HTTPRequest subclass for a given HTTP method/verb.
+    #
+    # @param method [Symbol, String]
+    #
+    # @return [Class] A subclass of Net::HTTPRequest.
+    #
+    # @api private
+    #
     def net_http_request_class(method)
       Net::HTTP.const_get(method.capitalize, false)
     end
 
+    # Actually execute the request with Net::HTTP.
+    #
+    # @param http [Net::HTTP]
+    # @param req [Net::HTTPRequest]
+    # @param body [String, IO, nil]
+    #
+    # @see https://ruby-doc.org/stdlib-2.4.0/libdoc/net/http/rdoc/Net/HTTP.html#method-i-request
+    #   Net::HTTP#request
+    #
+    # @api private
     def net_http_do_request(http, req, body=nil, &block)
       if body && body.respond_to?(:read)
         req.body_stream = body
@@ -557,6 +602,8 @@ module RestClient
     #
     # @return [String]
     #
+    # @api private
+    #
     def normalize_url(url)
       url = 'http://' + url unless url.match(%r{\A[a-z][a-z0-9+.-]*://}i)
       url
@@ -605,11 +652,20 @@ module RestClient
       redacted_uri.to_s
     end
 
-    # Default to the global logger if there's not a request-specific one
+    # The log used for this request.
+    #
+    # Defaults to the global logger {RestClient.log} if there was no `:log`
+    # option set on this request.
+    #
     def log
       @log || RestClient.log
     end
 
+    # Write log information about the request. Called just prior to sending the
+    # request to the server.
+    #
+    # @return [void]
+    #
     def log_request
       return unless log
 

lib/restclient/response.rb

@@ -2,6 +2,17 @@ module RestClient
 
   # A Response from RestClient, you can access the response body, the code or the headers.
   #
+  # Response is a subclass of `String` for backwards compatibility. This may
+  # change in a future major release of RestClient, so it is recommended to
+  # explicitly call {#body} or {#to_s} before invoking `String` methods.
+  #
+  # The request that resulted in this response is accessible at {#request}.
+  #
+  # Much of the functionality is implemented on the {AbstractResponse} module.
+  #
+  # @see AbstractResponse
+  # @see RawResponse
+  #
   class Response < String
 
     include AbstractResponse
@@ -38,14 +49,17 @@ module RestClient
       "<RestClient::Response #{code.inspect} #{body_truncated(10).inspect}>"
     end
 
-    # Initialize a Response object. Because RestClient::Response is
+    # Initialize a Response object. Because `RestClient::Response` is
     # (unfortunately) a subclass of String for historical reasons,
-    # Response.create is the preferred initializer.
+    # `Response.create` is the preferred initializer.
     #
     # @param [String, nil] body The response body from the Net::HTTPResponse
     # @param [Net::HTTPResponse] net_http_res
     # @param [RestClient::Request] request
     # @param [Time] start_time
+    #
+    # @return [Response]
+    #
     def self.create(body, net_http_res, request, start_time=nil)
       result = self.new(body || '')
 
@@ -55,8 +69,13 @@ module RestClient
       result
     end
 
-    # Set the String encoding according to the 'Content-Type: charset' header,
+    # Set the String encoding according to the `Content-Type: charset` header,
     # if possible.
+    #
+    # @param response [Response]
+    #
+    # @return [Response]
+    #
     def self.fix_encoding(response)
       charset = RestClient::Utils.get_encoding_from_headers(response.headers)
       encoding = nil

lib/restclient/version.rb

@@ -1,7 +1,12 @@
 module RestClient
+
+  # The current RestClient version array
   VERSION_INFO = [2, 1, 0, 'rc1'] unless defined?(self::VERSION_INFO)
+
+  # The current RestClient version string
   VERSION = VERSION_INFO.map(&:to_s).join('.') unless defined?(self::VERSION)
 
+  # @return [String] The current RestClient version string
   def self.version
     VERSION
   end