Creating an XML-RPC Client

Creating an XML-RPC Client import xmlrpclib servAddr = "http://localhost:8080" s = xmlrpclib.ServerProxy(servAddr) methods = s.system.listMethods() s.areaSquare(5) s.areaRectangle(4,5) s.areaCircle(5) The xmlrpclib module provided with Python allows you to create clients that can access web services that support the XML-RPC protocol. The XML-RPC protocol uses XML data encoding to transmit remote procedure calls across the HTTP protocol. This section discusses how to use the xmlrpclib module to create a client to access an XML-RPC server. The first step is to authenticate to the XML-RPC proxy server by calling the ServerProxy(uri [, transport [, encoding [ , verbose [, allow_none]]]]) function. The ServerProxy function connects to the remote location specified by uri and returns an instance of the ServerProxy object. After you have connected to the XML-RPC server, you can invoke methods on the remote server by calling them as a function of the ServerProject object. For example, you can call the introspection system.listMethods() using the "." syntax shown in the sample code xml-rpc_client.py. The system.listMethods() function returns a list of functions that are available on the XML-RPC server. Other remote functions that are registered on the XML-RPC server are invoked the same way. import xmlrpclib servAddr = "http://localhost:8080" #Attach to XML-RPC server s = xmlrpclib.ServerProxy(servAddr) #List Methods print "Methods\n===============" methods = s.system.listMethods() for m in methods: print m #Call Methods print "\nArea\n================" print "5 in. Square =", s.areaSquare(5) print "4x5 in. Rectangle =", s.areaRectangle(4,5) print "10 in. Circle =", s.areaCircle(5) xml-rpc_client.py Methods =============== areaCircle areaRectangle areaSquare system.listMethods system.methodHelp system.methodSignature Area ================ 5 in. Square = 25 4x5 in. Rectangle = 20 10 in. Circle = 78.5 Output of xml-rpc_client.py