September 2003
Intermediate to advanced
1008 pages
26h 5m
English
Content preview from Programming ASP.NET, Second EditionBecome an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.
Protocols and Standards
Various protocols are mentioned throughout this chapter, as well as in Chapter 16 and Chapter 17. While going into detail about the various protocols is beyond the scope of this book and also not necessary for an understanding of how web services work, some understanding is useful.
A protocol is a set of rules that describe the transmission and receipt of data between two or more computing devices. For example, TCP/IP (Transmission Control Protocol/Internet Protocol) governs the low-level transport of packets of data on the Internet.
HTTP
Layered on top of TCP/IP is HTTP (the HyperText Transfer Protocol), which is used to enable servers and browsers on the Web to communicate. It is primarily used to establish connections between servers and browsers and to transmit HTML to the client browser.
The client sends an HTTP request to the server, which then processes the request. The server typically returns HTML pages to be rendered by the client browser, although in the case of web services, the server may instead return a SOAP message containing the returned data of the web service method call.
HTTP requests pass name/value pairs from the requesting browser to a server. The request can be either of two types: HTTP-GET, or HTTP-POST.
HTTP-GET
In GET requests, the name/value pairs are appended directly to the URL. The data is uuencoded (which guarantees that only legal ASCII characters are passed over the wire), then appended to the URL, separated from the URL by ...
Become an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
and much more.
Read now
Unlock full access
More than 5,000 organizations count on O’Reilly
O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.