I'd like to know how to troubleshoot IIS URL Rewrite module and custom rewrite providers?
I am trying to do a POC on the URL Rewrite Module for our app. Our mappings are all in the database so I thought using the provider that comes as a sample. Got everything installed and configured, as instructed. Created the stored procedure as well. Now when I hit the alias URL I receive HTTP Error 500.50 - URL Rewrite Module Error. Here are the details about the error:
Module RewriteModule Notification BeginRequest Handler ExtensionlessUrlHandler-Integrated-4.0 Error Code 0x80070585
In SQL Profiler I see no calls to my stored procedure. The app pool is running under my account (admin rights). No errors in the event logs.
Are there any logs I could look into for more information on what's happening?
I got it working after two days of digging. The samples are good but not good enough: simply using supplied DLLs with supplied config entries doesn't work (for many reasons).
What I ended up doing was getting rid of the DLLs from samples and creating my own provider using the source code from samples and information from this article: Developing a Custom Rewrite Provider for URL Rewrite Module. Then IIS started loading my provider. But in order to make it work correctly I had to get deep understanding of module's config system.
So my answer to my own question -- don't relay on samples alone, they don't work out of the box. Instead, RTFM :) The best place to start is here: URL Rewrite Module Configuration Reference
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