What is HTTP?

Hyper Text Transfer Protocol

HTTP ?

• 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.

ADS HERE !!!