what is request payload in rest api code example

Example: request payload api

Request Payload has
ENDPOINT (Specific URL where we send our requests to a certain web service. )
METHOD (Get•Post•Put•Patch•Delete)
HEADERS(Represents the metadata of 
request or response. Like basically 
we can verify the object type we are sending etc  )
PARAMETERS(Parameters are to specifiying
even more about the request we are 
sending like what specific resources 
needs to be returned etc.)
BODY(Body is where we sent or received the request we made)
For the repsonse 
Basically we are checking response body
to verify if request matches with response.
In the response we are verifying
(body, status code, header, response time,
 test structure of json against the given jsonSchema)