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HTTP is based on methods.
Each method used performs a very different action.
The most popular are GET and POST.
GET
GET is the most used method. It’s the one that’s used when you type an URL in the browser address bar, or when you click a link.
It asks the server to send the requested resource as a response.
HEAD
HEAD is just like GET, but tells the server to not send the response body back. Just the headers.
POST
The client uses the POST method to send data to the server. It’s typically used in forms, for example, but also when interacting with a REST API.
PUT
The PUT method is intended to create a resource at that specific URL, with the parameters passed in the request body. Mainly used in REST APIs
DELETE
The DELETE method is called against an URL to request deletion of that resource. Mainly used in REST APIs
OPTIONS
When a server receives an OPTIONS request it should send back the list of HTTP methods allowed for that specific URL.
TRACE
Returns back to the client the request that has been received. Used for debugging or diagnostic purposes.