What is the difference between "GET", "HEAD", "PUT" or "POST" methods

[Bsr]

What is the difference between for the following methods.

"GET", "HEAD", "PUT" or "POST".


Ex:my $req =HTTP::Request->new(GET =>$url1);


Bhuvan.

[KevinADC]

do you mean what they are as methods to HTTP::Request or what they are in general?

get - just gets a document
head - is generally just used to see if a document is present
post - sends data to the server
put - I don't think there is a put for HTTP::Request but I'm not sure

as far as in general:

http request methods

[JohnGreen]

I think you are talking about a restful API.

GET : get a user
Head : checks a user exists
POST: Used to create a new user
PUT: Updade a users information

This is pretty much how restful API's I have worked on are.

<link removed>

[idreesnuman]

Get : retrieve information
Post: create new entity and update existing entity
Put: create new entity and update existing entity but put request is idempotent
Head: obtaining metainformation about the entity