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<!DOCTYPE html>
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8"/>
<title>taf2/curb @ GitHub</title>
<style type="text/css">
body {
margin-top: 1.0em;
background-color: #fff;
font-family: "helvetica";
color: #000;
}
#container {
margin: 0 auto;
width: 700px;
}
h1 { font-size: 3.8em; color: #de7a5b; margin-bottom: 3px; }
h1 .small { font-size: 0.4em; }
h1 a { text-decoration: none }
h2 { font-size: 1.5em; color: #de7a5b; }
h3 { text-align: center; color: #de7a5b; }
a { color: #de7a5b; }
.description { font-size: 1.2em; margin-bottom: 30px; margin-top: 30px; font-style: italic;}
.description cite { font-size: 90%; display:block; margin-top:10px; }
.download { float: right; }
pre { background: #000; color: #fff; padding: 15px;}
hr { border: 0; width: 80%; border-bottom: 1px solid #aaa}
.footer { text-align:center; padding-top:30px; font-style: italic; }
</style>
</head>
<body>
<a href="http://github.com/taf2/curb"><img style="position: absolute; top: 0; right: 0; border: 0;" src="http://s3.amazonaws.com/github/ribbons/forkme_right_darkblue_121621.png" alt="Fork me on GitHub" /></a>
<div id="container">
<div class="download">
<a href="http://github.com/taf2/curb/zipball/master">
<img border="0" width="90" src="http://github.com/images/modules/download/zip.png"></a>
<a href="http://github.com/taf2/curb/tarball/master">
<img border="0" width="90" src="http://github.com/images/modules/download/tar.png"></a>
</div>
<h1><a href="http://github.com/taf2/curb">curb</a>
<span class="small">by <a href="http://github.com/taf2">taf2</a></span></h1>
<div class="description">
Curb (probably CUrl-RuBy or something) provides <a href="http://ruby-lang.org/">Ruby-language</a> bindings for
<a title="A fully-featured client-side URL transfer library cURL and libcurl." href="http://curl.haxx.se/">libcurl(3)</a>.
<cite>Curb supports libcurl's 'easy' and 'multi' modes.</cite>
</div>
<h2>Dependencies</h2>
<p><a href="http://curl.haxx.se/">libcurl</a></p>
<h2>Examples</h2>
<h3>Simple fetch via HTTP:</h3>
<pre>
c = Curl::Easy.perform("http://www.google.co.uk")
puts c.body_str
</pre>
<h3>Same thing, more manual</h3>
<pre>
c = Curl::Easy.new("http://www.google.co.uk")
c.perform
puts c.body_str
</pre>
<h3>Additional config</h3>
<pre>
Curl::Easy.perform("http://www.google.co.uk") do |curl|
curl.headers["User-Agent"] = "myapp-0.0"
curl.verbose = true
end
</pre>
<h3>Same thing, more manual</h3>
<pre>
c = Curl::Easy.new("http://www.google.co.uk") do |curl|
curl.headers["User-Agent"] = "myapp-0.0"
curl.verbose = true
end
c.perform
</pre>
<h3>Supplying custom handlers</h3>
<pre>
c = Curl::Easy.new("http://www.google.co.uk")
c.on_body { |data| print(data) }
c.on_header { |data| print(data) }
c.perform
</pre>
<h3>Reusing Curls</h3>
<pre>
c = Curl::Easy.new
["http://www.google.co.uk", "http://www.ruby-lang.org/"].map do |url|
c.url = url
c.perform
c.body_str
end
</pre>
<h3>HTTP POST form</h3>
<pre>
c = Curl::Easy.http_post("http://my.rails.box/thing/create",
Curl::PostField.content('thing[name]', 'box',
Curl::PostField.content('thing[type]', 'storage')
</pre>
<h3>HTTP POST file upload</h3>
<pre>
c = Curl::Easy.new("http://my.rails.box/files/upload")
c.multipart_form_post = true
c.http_post(Curl::PostField.file('myfile.rb'))
</pre>
<h3>Multi Interface (Basic)</h3>
<h4>make multiple GET requests</h4>
<pre>
easy_options = {:follow_location => true}
multi_options = {:pipeline => true}
Curl::Multi.get('url1','url2','url3','url4','url5', easy_options, multi_options) do|easy|
# do something interesting with the easy response
puts easy.last_effective_url
end
</pre>
<h4>make multiple POST requests</h4>
<pre>
easy_options = {:follow_location => true, :multipart_form_post => true}
multi_options = {:pipeline => true}
url_fields = [
{ :url => 'url1', :post_fields => {'f1' => 'v1'} },
{ :url => 'url2', :post_fields => {'f1' => 'v1'} },
{ :url => 'url3', :post_fields => {'f1' => 'v1'} }
]
Curl::Multi.post(url_fields, easy_options, multi_options) do|easy|
# do something interesting with the easy response
puts easy.last_effective_url
end
</pre>
<h3>Multi Interface (Advanced)</h3>
<pre>
responses = {}
requests = ["http://www.google.co.uk/", "http://www.ruby-lang.org/"]
m = Curl::Multi.new
# add a few easy handles
requests.each do |url|
responses[url] = ""
c = Curl::Easy.new(url) do|curl|
curl.follow_location = true
curl.on_body{|data| responses[url] << data; data.size }
end
m.add(c)
end
m.perform do
puts "idling... can do some work here, including add new requests"
end
requests.each do|url|
puts responses[url]
end
</pre>
<h2>Install</h2>
<p>gem install taf2-curb</p>
<h2>Authors</h2>
<ul>
<li>Ross Bamford</li>
<li>Todd A. Fisher</li>
</ul>
<h2>Contributors</h2>
<ul>
<li>brycethornton</li>
<li>Cheah Chu Yeow</li>
<li>mobileAgent</li>
<li>Ian MacLeod</li>
<li>Ilya Grigorik</li>
<li>Jeff Whitmire</li>
<li>Matthew Beale</li>
<li>Phi.Sanders</li>
<li>Phillip Toland</li>
</ul>
<h2>Contact</h2>
<p>taf2 via github.com</p>
<h2>Download</h2>
<p>
You can download this project in either
<a href="http://github.com/taf2/curb/zipball/master">zip</a> or
<a href="http://github.com/taf2/curb/tarball/master">tar</a> formats.
</p>
<p>You can also clone the project with <a href="http://git-scm.com">Git</a>
by running:
<pre>$ git clone git://github.com/taf2/curb</pre>
</p>
<div class="footer">
get the source code on GitHub : <a href="http://github.com/taf2/curb">taf2/curb</a>
</div>
</div>
</body>
</html>