import { bodyFromUrl } from "https://dotland.deno.dev/x/live@1.63.12/utils/http.ts";
Parses the specified @param param from querystring of the given @param url.
if the parameter is specified so the payload is parsed by decoding the parameter from base64 and parsing as a Json usin JSON.parse,
otherwise all query parameters are used to mount an object using the dot notation format (a.b=10 generates { a :{ b:10 }}).