Return Data Using XML
Rather Than returning the information in a plain string, you may prefer to have data passed back using the XML Format
Quick XML Link
The simpliest way to view XML is to click on the link below (use the browser's
back button to return to here).
http://www.zip2tax.com/Link/Lookup_XML.asp?zip=90210&usr=sample&pwd=password
Or you can paste this line of code into any browser's URL box.
When XML is returned to your browser it will look differently depending on your browser brand (IE, Firefox) and version. But, the information is the same. In a practical application you would typically read the results into a requestXML object.
You may wish to try other zip codes (between 90001 and 92999) to see the results.
Error Handling
Two fields have been added for error handling, error_code and error_message. Below is a list of possible results . . .
| 0 | "No Errors" |
| 1 | "Missing Zip Code" |
| 2 | "Missing Password" |
| 3 | "Connection Error" |
| 4 | "Zip Code Less than 5 Characters" |
| 5 | "Zip Code Out of Range for Sample" |
| 6 | "Incorrect Username/Password" |
| 7 | "Zip Code Not Found" |
| 8 | "Missing Username" |
| 99 | "Error Unknown" |
