I&C SCI 32 Lecture Notes - Lecture 9: Hypertext Transfer Protocol, Web Resource, Parsing
30 Jul 2016
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Document Summary
However, there is an elephant in the room, so to speak; if we think about where most of the interesting data on the internet resides, it"s on the web. Web sites display content and allow human users to interact with web-based data, while web services provide a similar ability to other programs. In both cases, the same fundamentals we"ve already seen apply: a connection is initiated by a client connecting to a server (usually on the server"s port 80), and a protocol is followed that governs what the conversation looks like. So if we want to interact with web data the simplest example of which is to download the content of a web page we need to know enough about that protocol to be able to implement the conversation. When we use a browser to visit a web page, all we need to do is tell the browser where we want to go and it handles the rest.
