Nslookup.groovy

 /*
 *  Nslookup
 */
import groovy.json.JsonSlurper

@SuppressWarnings('unused')
static String version() {return "0.0.1"}

metadata {
    definition (
        name: "Nslookup", 
        namespace: "thebearmay", 
        author: "Jean P. May, Jr.",
        importUrl:"https://raw.githubusercontent.com/thebearmay/hubitat/main/nslookup.groovy"
    ) {
        
      
        capability "Actuator"
        attribute "lookupResp","STRING"
        attribute "lookupRespList","STRING"
        command "nslookup",[[name:"dnsName",type:"STRING",description:"DNS Lookup Name"],[name:"dnsServer",type:"STRING",description:"DNS Server (default: 8.8.8.8)"]]
    }   
}

preferences {
}

@SuppressWarnings('unused')
def installed() {

}
void updateAttr(String aKey, aValue, String aUnit = ""){
    sendEvent(name:aKey, value:aValue, unit:aUnit)
}


void nslookup(dnsName, dnsServer="8.8.8.8") {
    Map params = [
        uri: "https://$dnsServer/resolve?name=$dnsName&type=A",
        contentType: "text/plain",
        timeout: 10
    ]

    asynchttpGet("nsCallback", params)

}

String nsCallback(resp, data) {
    def jSlurp = new JsonSlurper()
    Map ipData = (Map)jSlurp.parseText((String)resp.data)
    updateAttr("lookupResp", ipData.Answer.data[0])
    updateAttr("lookupRespList", ipData.Answer.data)
}