What is HTTP? Which HTTP methods do you know and what are they used for?

HTTP (HyperText Transfer Protocol) is an application layer protocol for transferring hypertext and other data between a client and a server over the Internet.

Main HTTP methods:

• GET — request to retrieve a resource. Used to obtain data without changing the server's state.
• POST — send data to the server, for example, to create a new record.
• PUT — replace or update a resource on the server.
• DELETE — delete a resource.
• HEAD — retrieve only the response headers without the body.
• OPTIONS — request supported server methods for a resource.
• PATCH — partial update of a resource.

Each method reflects the client's intent and helps the server process the request correctly.