HTTP: HTTP Methods

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.

Lessons in this unit:

0:	Introduction
1:	An HTTP request
2:	▶︎ HTTP Methods
3:	HTTP Status Codes
4:	HTTP Client/Server communication
5:	HTTP Request Headers
6:	HTTP Response Headers
7:	HTTPS
8:	HTTP/2
9:	HTTP/3

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