This function can be used to invoke a method provided by an XML-RPC (remote procedure call) server. It can pass R objects in the request by serializing them to XML format and also converts the result back to R.
xml.rpc(url, method, ..., .args = list(...), .opts = list(),
.defaultOpts = list(httpheader = c("Content-Type" = "text/xml"),
followlocation = TRUE,
useragent = useragent),
.convert = TRUE, .curl = getCurlHandle(),
useragent = "R-XMLRPC")the URL of the XML-RPC server
a string giving the name of the XML-RPC method to invoke
a collection of argument valuesn
an alternative way to specify the collection (list) of arguments
a list of options passed on to
postForm. This is for the caller to specify
server-specific curl options as opposed to general XML-RPC options
which are set via .defaultOpts.
standard/default RCurl options used when making this call
either a logical value indicating whether to perform
the defalt conversion (via convertToR) or not,
or alternatively a function which is called with a string
giving the body of the HTTP response of the XML-RPC call.
a CURLHandle object that the caller can specify to allow reusing existing handles and connections. This can greatly improve efficiency.
the string identifying the application that is reported to the Web server as making the request.
If .convert is a logical value and TRUE, an R object
giving the result of the XML-RPC method invocation. If .convert
is FALSE, a string giving the body of the response.
If .convert is a function, it is called with the body of the
XML-RPC response as a string.
http://www.xmlrpc.com http://www.cafeconleche.org/books/xmljava/chapters/ch02s05.html for a DTD for XML-RPC and examples and discussion.