REXML in Ruby (use of XML in Ruby) - ruby

I am new to Ruby. What I want to know is what's the use of XML in Ruby? I mean for what purpose REXML is there in Ruby? Could anybody give me example like by adding some XML documents in our Ruby program? We have this kind of benefit. It means I want to know for what purpose XML is used in Ruby. Sorry if it looks stupid question, but I want to know.

The XML is use in ruby like in other langage. You can use it to configure your programme or communicate with other stuff.
After we prefere JSON to communicate ad YAML to configure.

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Ruby Net::HTTP::Options does not allow response body

I am writing a script to test various web-services in ruby. To make http requests thus far I have been using Net::HTTP but today I realized I needed to make an OPTIONS request and retrieve some JSON from the response.
Unfortunately ruby does not currently support this: https://bugs.ruby-lang.org/issues/8429
Does anyone know of gem that supports this or some other way to get this response?
This is an alternative which supports lot of options
https://rubygems.org/gems/curb
Mechanize Gem
Try this gem it's very usefull and simple in use. I use it for parsing and another different tasks.

What methods exist to auto-generate ruby client stubs from WSDL files?

I'm using Ruby and the Savon gem to interact with SOAP/WS and would like to auto-generate the client request methods from the WSDL in Ruby.
Before I do this, I'd like to know if there's any other Ruby/SOAP library that does this?
Edit: Please note, I already know this isn't available in Savon out the box, in fact my intention is to add in the feature, I'm in the process checking if this exists somewhere else written in Ruby.
Since it's only few days since you asked this question, and I've run into same problem I've decided to create small script to do that.
Download - save as objects.rb for example and run with _bunde exec objects.rb path_to.wsdl_
https://gist.github.com/4622792
Let me know if it works ^^
Take a look at Savon's spec, it has pretty rich testing environment
I think ads_common by Google is relevant to you.
google-api-ads-ruby/ads_common at master ยท googleads/google-api-ads-ruby
rake generate can create the client libraries automatically from WSDL.
It is specialized for Google Ads, but this notion would be helpful to create a versatile client library automatically from WSDL in Ruby.

Network programming with ruby

My homework is to use ruby to build a simple spider(or crawler).
In ruby,to fetch web page what build-in moduel should I use?
I known python has a urllib moduel!
You could take a look at the Net::HTTP module or search for something that builds on top of it.

Factories with sinatra and rspec possible?

I wondered if anyone had any success with using any of the facorty testing tools out there with Sinatra, Sequel and RSpec?
You can take a look at Rstat.us on Github. We're using Factory Girl with Sinatra. Although we are using MiniTest instead of RSpec. Maybe you can take something away from looking at it.
You mean like machinist or factory girl?
Yes, but what are you after specifically? Not really any different to setting up data using fixtures or using helpers in your code in practice.

Easy Ruby http/curl API to program with

I've been using Ruby for quite some time now, however unlike PHP, as far as I know there is not a standard http/Curl (fetching, processing forms) like library that is easy and powerful like PHP's libCuRL binding.
While Net::HTTP is part of the Ruby standard library, I always find that API hard to remember and program with.
Can anyone give suggestions on which http/curl library I should use over Net::HTTP?
Take a look at HTTParty or REST Client.
I would recommend using the Typhoeus gem. It's got a pretty clean API and allows you to make concurrent requests.
I'll second Ryan's recommendation for Typhoeus, and recommend HTTPClient also. Both are very full featured and handle parallel
requests easily.
For simple requests it's hard to beat Open-URI for its simplicity:
require 'open-uri'
html = open('http://www.example.com').read
If you're parsing a page it works great with Nokogiri:
require 'open-uri'
require 'nokogiri'
doc = Nokogiri::HTML(open('http://www.example.com'))
I wrote a wrapper for the Net:HTTP lib recently, its very very simplistic. I wanted something with a simple API that was easy to use and remember, it's been working well for me:
https://github.com/ctcherry/plain_http

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