need to insert new info into HTTP query or uri

Hi Patrick,

Sorry, I didn't realize that HTTP::query only allows you to get the query string value, and not set it. HTTP::uri will allow you to get or set the URI, including the query string.

If you know there will never be a pre-existing query string in the original client request, you could just append the updated URI to the existing URI. However, I expect there would be requests with existing query strings for most apps. To handle that, you could use string map to replace the query string with the new query string within the entire URI. Here is an example:

...
 original query string is returned by [HTTP::query]
 check if query string is empty
if {[string length [HTTP::query]] > 0}{
    query string wasn't empty, so we have to preserve what was there
    make a change to the query string
   set updated_qs "[HTTP::query]&someparameter=somevalue"
    update the URI by replacing the old query string with the new
   HTTP::uri [string map "[HTTP::query] $updated_qs" [HTTP::uri]]
} else {
    query string wasn't set, so we can just append to the existing URI
   HTTP::uri "[HTTP::uri]?someparameter=somevalue"
}
...

You won't be able to log the change to the URI using HTTP::uri, as the value is cached. But you could log the string map output to see the change:

log local0. "Updated URI: [string map \"[HTTP::query] $updated_qs\" [HTTP::uri]]"

Aaron