On Jan 9, 2015, at 10:30 AM, Zhao, Sean 
<[email protected]<mailto:[email protected]>> wrote:

Hi, again
                Since I have not got any response. I used 
http://whois.ote.arin.net/rest/cidr/65.127.10.160/29/more to get the xml from 
Arin’s RESTful server. I got this <nets>
<?xml version='1.0'?>
<?xml-stylesheet type='text/xsl' href='http://whois.arin.net/xsl/website.xsl' ?>
<nets xmlns="http://www.arin.net/whoisrws/core/v1";
xmlns:ns2="http://www.arin.net/whoisrws/rdns/v1";
xmlns:ns3="http://www.arin.net/whoisrws/netref/v2";
termsOfUse=https://www.arin.net/whois_tou.htmlinaccuracyReportUrl="http://www.arin.net/public/whoisinaccuracy/index.xhtml";>
<limitExceeded limit="256">false</limitExceeded>
<netRef startAddress="65.127.10.176"
endAddress="65.127.10.183"
name="Q0818-65-127-10-176"
handle="NET-65-127-10-176-1">
http://whois.ote.arin.net/rest/net/NET-65-127-10-176-1
</netRef>
<netRef startAddress="65.127.10.168"
endAddress="65.127.10.175"
name="Q0820-65-127-10-168"
handle="NET-65-127-10-168-1">
http://whois.ote.arin.net/rest/net/NET-65-127-10-168-1
</netRef>
</nets>

Just need to confirm that this is the correct response. The list of netRef can 
be null if there is no 65.127.10.160/29 in Arin’s DB. Correct? Do I miss any 
other elements?. Just need to make sure that I won’t get the code crash if 
there is new element showing up in <nets>. I will appreciate if I can get any 
response from you.


Sean,

The list will not contain any netRef elements if there are no records matching 
the query.

However, your program should account for a scenario where new elements may show 
up. Our XML schema is extensible, and we do add new elements from time to time. 
 In general, it is good practice to ignore unknown elements and names in both 
XML and JSON.

The schemas for Whois-RWS can be found here: Whois-RWS Schema (ZIP 
format)<https://www.arin.net/resources/whoisrws/whoisrws-relaxng-compact-schemas.zip>

I hope this answers your question.

Andy Newton,
Chief Engineer, ARIN




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