iisnode handling

web.config

<!-- 1. install: https://github.com/Azure/iisnode/releases 2. add website in IIS, 3. drop this file into a node website -->
<?xml version="1.0" encoding="UTF-8"?>
<configuration>
  <system.webServer>

    <handlers>
      <add name="iisnode" path="app.js" verb="*" modules="iisnode" />
    </handlers>

    <iisnode
      devErrorsEnabled="true"
      maxRequestBufferSize="1073741824"
    />

    <!-- stop it from catching HTTP headers, resulting in HTTP-verb error -->
    <modules>
      <remove name="WebDAVModule" />
    </modules>

    <!-- allow files of 1GB to be transfered -->
    <security>
      <requestFiltering>
        <requestLimits maxAllowedContentLength="1073741824" />
      </requestFiltering>
    </security>

    <rewrite>
      <rules>
        <!-- SSL Certificate validation -->
        <rule name="Let's Encrypt http-01 challenge" patternSyntax="ECMAScript" stopProcessing="true">
          <match url="^.well-known\/.*?" />
        </rule>
        <!-- Rewrite all http requests to https -->
        <rule name="Redirect HTTP to HTTPS" stopProcessing="true">
          <match url="(.*)" />
          <conditions>
            <add input="{HTTPS}" pattern="^OFF$" />
          </conditions>
          <action type="Redirect" url="https://{HTTP_HOST}/{R:1}" />
        </rule>
        <!-- Rewrite all www requests to .domain -->
        <rule name="Redirect www.domain.com to domain.com" patternSyntax="ECMAScript" stopProcessing="true">
          <match url=".*" />
          <conditions>
            <add input="{HTTP_HOST}" pattern="^www.domain.com$" />
          </conditions>
          <action type="Redirect" url="https://domain.com/{R:0}" />
        </rule>
        <!-- Don't interfere with requests for logs -->
        <rule name="LogFile" patternSyntax="ECMAScript" stopProcessing="true">
          <match url="^[a-zA-Z0-9_\-]+\.js\.logs\/\d+\.txt$" />
        </rule>
        <!-- Do not interfere with requests for node-inspector debugging -->
        <rule name="NodeInspector" patternSyntax="ECMAScript" stopProcessing="true">
          <match url="^app.js\/debug[\/]?" />
        </rule>
        <!-- First we consider whether the incoming URL matches a physical file in the /public folder -->
        <rule name="StaticContent">
          <action type="Rewrite" url="public{REQUEST_URI}" />
        </rule>
        <!-- All other URLs are mapped to the node.js site entry point -->
        <rule name="DynamicContent">
          <conditions>
            <add input="{REQUEST_FILENAME}" matchType="IsFile" negate="True" />
          </conditions>
          <action type="Rewrite" url="app.js" />
        </rule>
      </rules>
    </rewrite>
    
    <!-- you should use a caching solution, but this will prevent updates when there was a code change -->
    <caching enabled="false" enableKernelCache="false" />
    
  </system.webServer>
</configuration>