How to remove querystring from a url via web.config

Question

I need 301 redirect for all urls like

xyz.com/searchitems?key1=val1&key2=val2 to be like

xyz.com/searchitems

i.e. I want query string to be removed from URL. I have written this so far in my web.config

        <rewrite>
      <rules>
        <rule name="Rewrite to searchitems">
          <match url="^searchitems?$" />
<conditions>
    <add input="{QUERY_STRING}" pattern="(.*)" />
  </conditions>
          <action type="Redirect" redirectType="Permanent" url="{R:0}" appendQueryString="false"  />
        </rule>
      </rules>
   </rewrite>

but it is making redirect loop

Edit:

I wat the querystring to be removed just for this url "xyz.com/searchitems" and not for all urls. There can be any number of query string params in urls.

"?" needs to be escaped in regular expressions. Currently, your rule matches the URL "searchitem" since the trailing "s" is turned optional by the "?". If the "?" had been a literal part of the URL, maybe there wouldn't be a redirect loop since the resulting URL has no "?" in it. :) — bzlm
I guess the pattern to match searchresults only with some params is "^(.*searchitems)\?.+$" — Sbu
It is not even matching now and just opening xyz.com/searchitems?key1=val1&key2=val2 — Rocky Singh
Unit test it with something like this : Regex r = new Regex(@"^(.*searchitems)\?.+$"); var b1 = r.IsMatch("xyz.com/searchitems?qsdfj=qsdkfj%20"); var b2 = r.IsMatch("xyz.com/searchitems?key1=val1&key2=val2"); var b3 = r.IsMatch("xyz.com/searchitems"); var b4 = r.Matches("xyz.com/searchitems?qsdfj=qsdkfj%20"); — Sbu

Raghav Raghav · Accepted Answer · 2015-01-20T10:25:15

Try this:

  <rewrite>
      <rules>
        <rule name="Custom rule" stopProcessing="true">
          <match url="^searchitems" />
          <conditions>
            <add input="{QUERY_STRING}" pattern="(.+)" />
          </conditions>
          <action type="Redirect" url="/searchitems" appendQueryString="false" />
        </rule>
      </rules>
    </rewrite>

How to remove querystring from a url via web.config

1 Answers