EVOLUTION-MANAGER
Edit File: CURLHandle-class.html
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd"><html xmlns="http://www.w3.org/1999/xhtml"><head><title>R: Class "CURLHandle" for synchronous HTTP requests</title> <meta http-equiv="Content-Type" content="text/html; charset=utf-8" /> <link rel="stylesheet" type="text/css" href="R.css" /> </head><body> <table width="100%" summary="page for CURLHandle-class {RCurl}"><tr><td>CURLHandle-class {RCurl}</td><td style="text-align: right;">R Documentation</td></tr></table> <h2>Class "CURLHandle" for synchronous HTTP requests</h2> <h3>Description</h3> <p>This is the basic class used for performing HTTP requests in the RCurl package. In R, this is a reference to a C-level data structure so we treat it as an opaque data type. However, essentially we can think of this as an with a set of options that persists across calls, i.e. HTTP requests. The numerous options that one can set can be see via <code><a href="curlOptions.html">getCurlOptionsConstants</a></code>. The object can keep a connection to a Web server open for a period of time across calls. </p> <p>This class differs from <code><a href="MultiCURLHandle-class.html">MultiCURLHandle-class</a></code> as it can handle only one request at a time and blocks until the request is completed (normally or abnormally). The other class can handle asynchronous, multiple connections. </p> <h3>Objects from the Class</h3> <p>A virtual Class: No objects may be created from it.</p> <h3>Extends</h3> <p>Class <code>"oldClass"</code>, directly. </p> <h3>Author(s)</h3> <p>Duncan Temple Lang</p> <h3>References</h3> <p><a href="http://curl.haxx.se">http://curl.haxx.se</a>, the libcurl web site. </p> <h3>See Also</h3> <p><code><a href="getURL.html">getURL</a></code>, <code><a href="postForm.html">getForm</a></code>, <code><a href="postForm.html">postForm</a></code> <code><a href="getCurlHandle.html">dupCurlHandle</a></code>, <code><a href="getCurlHandle.html">getCurlHandle</a></code>, <code><a href="MultiCURLHandle-class.html">MultiCURLHandle-class</a></code> </p> <hr /><div style="text-align: center;">[Package <em>RCurl</em> version 1.98-1.2 <a href="00Index.html">Index</a>]</div> </body></html>