is there a place to find a resource's required configuration identifies?

This one works for me:

POST https://{{bigip_a_mgmt}}/mgmt/tm/ltm/virtual

And the body:

{
    "source":  "0.0.0.0/0",
    "ipProtocol":  "tcp",
    "description":  "autocreated sitename_vs",
    "rateLimit":  "disabled",
    "destination":  "10.23.98.222:443",
    "mask":  "255.255.255.255",
    "rules":  [
              "_sys_https_redirect"
          ],
    "name":  "sitename_vs",
    "sourceAddressTranslation":  {
                                 "type":  "automap"
                             },
    "profiles" : [ {
        "kind" : "ltm:virtual:profile",
        "name" : "http"
    }],
    "pool":  "pool_test",
    "partition":  "Common"
}

I had to correct "Name" to "name", the mask from "255.255.255.0" to "255.255.255.255" and add the http profile. This is needed when using the _sys_https_redirect iRule.