HTTP Methods and response status codes

Explain  HTTP request methods ?

HTTP defines a set of request methods to indicate the desired action to be performed for a given resource. 

GET:  The GET method is used to retrieve information from the given server using a given URI. Requests using GET should only retrieve data and should have no other effect on the data.

HEAD:  Same as GET, but transfers the status line and header section only.

POST: A POST request is used to send data to the server, for example, customer information, file upload, etc. using HTML forms.

PUT:  The PUT method replaces all current representations of the target resource with the request payload.

DELETE: Removes all current representations of the target resource given by a URI.

CONNECT: Establishes a tunnel to the server identified by a given URI.

OPTIONS: Describes the communication options for the target resource.

TRACE: Performs a message loop-back test along the path to the target resource.

PATCH :The PATCH method is used to apply partial modifications to a resource.

Explain HTTP response status codes?

HTTP response status codes indicate whether a specific HTTP request has been successfully completed. Responses are grouped in five classes:

Informational responses (100–199)

Successful responses (200–299)

Redirects (300–399)

Client errors (400–499)

Server errors (500–599)

For more information follow this link: https://developer.mozilla.org/en-US/docs/Web/HTTP/Status