In case anyone comes across this question on Google and had problems with the sample web.config mentioned in the accepted answer...
This is the web.config file that worked for me:
<?xml version="1.0" encoding="utf-8"?>
<configuration>
<system.webServer>
<handlers>
<add name="iisnode" path="server/app.js" verb="*" modules="iisnode" />
</handlers>
<rewrite>
<rules>
<rule name="LogFile" patternSyntax="ECMAScript" stopProcessing="true">
<match url="iisnode" />
</rule>
<rule name="NodeInspector" patternSyntax="ECMAScript" stopProcessing="true">
<match url="^server\/app.js\/debug[\/]?" />
</rule>
<rule name="StaticContent" patternSyntax="ECMAScript" stopProcessing="true">
<match url=".*" />
<action type="Rewrite" url="public/{C:1}" logRewrittenUrl="true" />
<conditions>
<add input="{REQUEST_URI}" pattern=".*?virtualpath\/(.*)" />
</conditions>
</rule>
<rule name="DynamicContent" patternSyntax="ECMAScript">
<match url=".*" />
<conditions>
<add input="{{REQUEST_FILENAME}}" matchType="IsFile" negate="True" />
</conditions>
<action type="Rewrite" url="server/app.js" logRewrittenUrl="true" />
</rule>
</rules>
</rewrite>
<security>
<requestFiltering>
<hiddenSegments>
<add segment="node_modules" />
</hiddenSegments>
</requestFiltering>
</security>
</system.webServer>
</configuration>
My folder structure is:
- virtualpath/ - refers to the IIS configured Virtual Path
- public/ - contains static content
- server/ - contains server application files