# Rss-client-2.0.9 **URL:** \ **Category:** Ruby\ **Created:** [January 21, 2008, 11:05am UTC](https://www.ruby-forum.com/t/rss-client-2-0-9/126682 "2008-01-21T11:05:54Z")\ **Posts on this page:** 3\ **Page:** 1
**Author:** ![Stoyan\_Z](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/s/77aa72/32.png) [@Stoyan\_Z](https://www.ruby-forum.com/u/Stoyan_Z)\ **Post date:** [January 21, 2008, 11:05am UTC](https://www.ruby-forum.com/t/rss-client-2-0-9/126682/1 "2008-01-21T11:05:54Z")
ABOUT Fetching and parsing RSS feeds with easy. Ruby library (mixin) for adding RSS feeds download and parsing functionality. The RSS fetch command line utility, using the library is also included. DEPENDS feed-normalizer for the RSS feeds parsing. URIs Homepage: [http://rubyforge.org/projects/rss-client](http://rubyforge.org/projects/rss-client) Download: [http://rubyforge.org/frs/?group\_id=5309](http://rubyforge.org/frs/?group_id=5309) SVN: svn checkout [http://rss-client.rubyforge.org/svn/](http://rss-client.rubyforge.org/svn/) Mercurial: hg clone [Error 404: File Not Found | Assembla](http://hg.assembla.com/rss-client) rss-client I’m using mostly mercurial, so you can follow the development on: [Error 404: File Not Found | Assembla](http://trac-hg.assembla.com/rss-client/) Only releases/gems will be posted to rubyforge. Some main milestones/ bug fixes will be commited to the rubyforge SVN. INSTALLATION Normal Installation You can install rss-client with the following command: $ ruby install.rb from its distribution directory. GEM Installation Download and install rss-client with the following: $ gem install --remote rss-client COMMAND LINE UTILITY USAGE $ rssclient [options] feed\_url Options -h, --help Displays help message -V, --version Display the version, then exit -q, --quiet Output as little as possible, overrides verbose -v, --verbose Verbose output -p, --proxy Use proxy (format [http://user:pass@address](http://user:pass@address):port ) -r, --raw Use raw RSS fetch (no error code processing) -g, --giveup Giveup on fetching after timeout (seconds) -f, --force Force fresh feed fetch (no 304 code processing) -s, --since Only changes from {since} seconds ago Examples $ rssclient -q [http://example.com/atom.xml](http://example.com/atom.xml) $ rssclient -r -f [http://test:removed\_email\_address@domain.invalid/atom.xml](http://test:removed_email_address@domain.invalid/atom.xml) $ rssclient --verbose [http://example.com/atom.xml](http://example.com/atom.xml) $ rssclient --giveup 20 -f [http://example.com/atom.xml](http://example.com/atom.xml) $ rssclient --since 600 [http://example.com/atom.xml](http://example.com/atom.xml) $ rssclient -f -p [http://aa:bb@localhost:8088](http://aa:bb@localhost:8088) [http://example.com/atom.xml](http://example.com/atom.xml) LIBRARY USAGE IN YOUR OWN RUBY CLASSES The main method the library exports is: get\_feed(url, opts) where, url - string with the feed url opts - OpenStruct with options (see the example below) The method returns the output from the FeedNormalizer.parse() on sucess and nil on failure/not modified. The raw feed is saved in @rssc\_raw for future processing The method handles: - successful download (200) - @rssc\_raw have the original feed and the output from the method is the parsed one. - not modidied (304) - returns nil and 304 in the @rssc\_raw.status - redirects (301, 302) - automaticaly redirect to the new url and trying to fetch the feed again Example require 'rss-client class Feed include RSSClient ``` def fetch opts = OpenStruct.new opts.forceUpdate = false # set true to force the download (no ``` 304 code handling) opts.giveup = 10 # on error giveup after 10 sec timeout ``` rss = get_feed('http://rubyforge.org/export/ ``` rss\_sfnews.php’,opts) return nil unless @rssc\_raw # download error return 304 if @rssc\_raw.status == 304 # feed not modified return nil unless rss # error in parsing ``` # some title, items etc. processing self.title = rss.channel.title.to_s self.description = rss.channel.description.to_s rss.entries.each do |i| ... end end ``` end get\_feed() using get\_url(url, opts) method, which in turn is powered by HTTPAccess2::Client. get\_url() can be used for low-level connection debugging (the -r option in the command line utility). get\_url() example output for [http://rubyforge.org/export/rss\_sfnews.php:](http://rubyforge.org/export/rss_sfnews.php:) $ rssclient -r [http://rubyforge.org/export/rss\_sfnews.php](http://rubyforge.org/export/rss_sfnews.php) Status code: 200 Headers: - Status: 200 OK - Date: Mon, 21 Jan 2008 09:37:00 GMT - Server: Apache - X-Powered-By: PHP/4.4.8 - Vary: Accept-Encoding - Connection: close - Transfer-Encoding: chunked - Content-Type: text/plain - Content-Length: 0 - Content-Type: text/html; charset=us-ascii CREDITS Hiroshi N. - For the http-access2 library. Todd W. - For the ruby command-line application skeleton LICENSE rss-client is available under an MIT-style license. And one question/problem: when installed with ‘ruby install.rb’ the ‘- h’ option properly displaying the help/usage. When installed via gems, ‘-h’ returns: rssclient version 2.0.9 This file was generated by RubyGems. The application ‘rss-client’ is installed as part of a gem, and this file is here to facilitate running it. ---
**Author:** ![Stoyan\_Z](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/s/77aa72/32.png) [@Stoyan\_Z](https://www.ruby-forum.com/u/Stoyan_Z)\ **Post date:** [January 22, 2008, 3:05am UTC](https://www.ruby-forum.com/t/rss-client-2-0-9/126682/2 "2008-01-22T03:05:13Z")
I tried to use the latest rss-client in a Rails app and I get the following error: undefined method `new' for class`Class’ RAILS\_ROOT: /home/998640e2/web/apple/config/… Application Trace | Framework Trace | Full Trace /opt/local/lib/ruby/gems/1.8/gems/rss-client-2.0.9/lib/rss-client/http-access2/http.rb:393 /opt/local/lib/ruby/site\_ruby/1.8/rubygems/custom\_require.rb:27:in `gem_original_require' /opt/local/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:27:in`require’ /opt/local/lib/ruby/gems/1.8/gems/activesupport-1.4.4/lib/active\_support/dependencies.rb:495:in `require' /opt/local/lib/ruby/gems/1.8/gems/activesupport-1.4.4/lib/active_support/dependencies.rb:342:in`new\_constants\_in’ /opt/local/lib/ruby/gems/1.8/gems/activesupport-1.4.4/lib/active\_support/dependencies.rb:495:in `require' /opt/local/lib/ruby/gems/1.8/gems/rss-client-2.0.9/lib/rss-client/http-access2.rb:21 /opt/local/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:27:in`gem\_original\_require’ /opt/local/lib/ruby/site\_ruby/1.8/rubygems/custom\_require.rb:27:in `require' /opt/local/lib/ruby/gems/1.8/gems/activesupport-1.4.4/lib/active_support/dependencies.rb:495:in`require’ /opt/local/lib/ruby/gems/1.8/gems/activesupport-1.4.4/lib/active\_support/dependencies.rb:342:in `new_constants_in' /opt/local/lib/ruby/gems/1.8/gems/activesupport-1.4.4/lib/active_support/dependencies.rb:495:in`require’ /opt/local/lib/ruby/gems/1.8/gems/rss-client-2.0.9/lib/rss-client.rb:3 /opt/local/lib/ruby/site\_ruby/1.8/rubygems/custom\_require.rb:27:in `gem_original_require' /opt/local/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:27:in`require’ /opt/local/lib/ruby/gems/1.8/gems/activesupport-1.4.4/lib/active\_support/dependencies.rb:495:in `require' /opt/local/lib/ruby/gems/1.8/gems/activesupport-1.4.4/lib/active_support/dependencies.rb:342:in`new\_constants\_in’ /opt/local/lib/ruby/gems/1.8/gems/activesupport-1.4.4/lib/active\_support/dependencies.rb:495:in `require' /home/998640e2/web/apple/app/controllers/rss_controller.rb:1 /opt/local/bin/mongrel_rails:16:in`load’ /opt/local/bin/mongrel\_rails:16 This error occurred while loading the following files: rss-client rss-client/http-access2 rss-client/http-access2/http I installed the gem as described. Ruby version 1.8.6 Any ideas? Nick. ---
**Author:** ![Stoyan\_Z](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/s/77aa72/32.png) [@Stoyan\_Z](https://www.ruby-forum.com/u/Stoyan_Z)\ **Post date:** [January 22, 2008, 4:21am UTC](https://www.ruby-forum.com/t/rss-client-2-0-9/126682/3 "2008-01-22T04:21:03Z")
On Jan 22, 11:05 am, Nick A. [removed\_email\_address@domain.invalid](mailto:removed_email_address@domain.invalid) wrote: > I tried to use the latest rss-client in a Rails app and I get the > following error: > > undefined method `new' for class `Class’ > RAILS\_ROOT: /home/998640e2/web/apple/config/… I added an example rails application, using rss-client. Working for me. Untar, cd to it, rake db:migrate and start mongrel. Access to http://your\_url/feeds/ will give you the RubyGorge feed news. [http://rubyforge.org/frs/download.php/31123/rssclient\_on\_rails.tgz](http://rubyforge.org/frs/download.php/31123/rssclient_on_rails.tgz)