How to get WssID for new taxonomy value in the REST Post call?

So I looked for this and I found various places to use CSOM or JavaScript way to get the WssId.

But it is quite simple for the RESP Post call. You simply needs to pass WssId = -1 for example

‘CONSTOSO-TAX-FLD’: {
“__metadata”: { “type”: “SP.Taxonomy.TaxonomyFieldValue” },
“TermGuid”: ’07bda450-b080-4c2b-a239-c9cca8418fc3′,
“WssId” : -1
},