You call HTTP methods for resources in order to manipulate them. The REST architectural style has a conventional meaning for each of the HTTP methods, which are also called verbs. The methods are listed below:
HTTP Method
GET
Read information from a resource.
PUT
Create a new resource or update an existing resource.
POST
(Create a new resource *), send a command.
DELETE
Delete a resource.
* There is a subtle semantic difference between PUT and POST, which is sometimes a matter of dispute. IMI API favors
PUT for create and update actions and uses
POST for logins and for sending commands to resources.