Hyper text transfer protocol is a web transfer protocol in which set of requests from browsers are taken to servers and vice-versa.
Mainly its an medium to communicate between your web browser and servers.
There are 2 kind of requests in http :
Full request : In full request we get the protocol version and information like headers. Headers are nothing but they give additional information between client and servers.
Simple request : Simple request is wherein we just get the raw page of the website. Here we will not get the information like protocol version, no headers and no encoding.
HTTP uses services of TCP protocol.
HTTP : Pic to explain http working
HTTP METHODS
GET: The method is used when a client (user) wants to access a website or a web property. The server responds with piece of information which user wants.
HEAD : This is when user wants the information about the document, but the document itself.
POST : This method is when client inputs to web servers. Client provides imformation to web servers.
PUT : Put is a method where client replaces a document or adds a new document on web servers.
COPY : Users can copy the file to different locations.
MOVE : It moves a file from one location to another.
LINK : Useful to link two documents together.
UNLINK : Deletes the link established between two different documents.
DELETE : It removes the document or information from the server.
OPTION : Client is provided with available options on server.
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