Web Services and RPC

When you write a networked application, you make information or services accessible over a computer network. Sometimes this is done with the goal of letting people use your program remotely. But more often it's done to enable other applications to communicate with yours. Providing a way for other programs to communicate with your application makes it more flexible and more valuable. It allows other developers to use your application's data and services in new wayspossibly even to write new features that you might not have the time or expertise to write yourself.

The concept of one program calling a function in another program over a network is called RPC, or Remote Procedure Calls. RPC can be done in any number of ways, but these days the most common way is to make functions available through the Web. Programmatic interfaces that are available on the Web, meant for use by other applications instead of by a user with a web browser, are known as web services .

This chapter shows how to use web services and RPC in your applications. It demonstrates how to make services available across the network, and how to write client applications that use these services. It discusses four different ways to do this using Twisted: REST, XML-RPC, SOAP, and Twisted's own Perspective Broker.

Getting Started

Building Simple Clients and Servers

Web Clients

Web Servers

Web Services and RPC

Authentication

Mail Clients

Mail Servers

NNTP Clients and Servers

SSH

Services, Processes, and Logging



Twisted Network Programming Essentials
Twisted Network Programming Essentials
ISBN: 0596100329
EAN: 2147483647
Year: 2004
Pages: 107
Authors: Abe Fettig

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