What is HTTP?

The Hypertext Transfer Protocol (HTTP) is designed to enable communications between clients and servers.

HTTP works as a request-response protocol between a client and server.

A web browser may be the client, and an application on a computer that hosts a web site may be the server.

Example: A client (browser) submits an HTTP request to the server; then the server returns a response to the client. The response contains status information about the request and may also contain the requested content.

For more information - https://www.w3schools.com/tags/ref_httpmethods.asp 

The HTTP Methods in PRISMA shipper API:

HTTP Methods Action 
GETTo request data from the API server
POSTTo sent data to the API server
PUTTo edit an existing data on the API server
DELETETo delete the specified resources from the API server