URI | URL | URN

#webdev #beginners

The world of Uniform Resource ___

Here the word resource could be anything, take it as a img on your computer for easier understanding

URI

URI stands for Uniform Resource Identifier
A URI contains two things
- Name
- Location
We need URI so identify the resource from its name and also be able to locate it using location

URL

URL stands for Uniform Resource Locator
This is basically the address of the resource.

URN

URN stands for Uniform Resource Name
This is basically the name of the resource.

Therefore : URI = URL + URN

The URI generic syntax consists of a hierarchical sequence of five components

URI = scheme:[//authority]path[?query][#fragment]

where the authority component divides into three subcomponents:

authority = [userinfo@]host[:port]

             host   port
          ┌───┴───┐ ┌─┴┐
  https://localhost:8080/forum/q/?tag=networking#top
  └─┬─┘   └───────────┬──────────────┘└───────┬───────┘ └───────────┬─────────────┘ └┬┘
  scheme          authority                  path                 query           fragment

I hope you like this article !