The redirect from http to https in IIS can be accomplished with the following code added in the web.config file of the website:
<rewrite>
<rules>
<rule name="Https forced" stopProcessing="true">
<match url="(.*)" />
<conditions>
<add input="{HTTPS}" pattern="^OFF$" />
</conditions>
<action type="Redirect" url="https://{HTTP_HOST}/{R:1}" redirectType="SeeOther" />
</rule>
</rules>
</rewrite>
This code should be added in the <system.webServer> section in the web.config file. For example:
<?xml version="1.0" encoding="UTF-8"?>
<configuration>
<system.webServer>
<rewrite>
<rules>
<rule name="Https forced" stopProcessing="true">
<match url="(.*)" />
<conditions>
<add input="{HTTPS}" pattern="^OFF$" />
</conditions>
<action type="Redirect" url="https://{HTTP_HOST}/{R:1}" redirectType="SeeOther" />
</rule>
</rules>
</rewrite>
<directoryBrowse enabled="false" />
<defaultDocument>
<files>
<clear />
<add value="Default.htm" />
<add value="Default.asp" />
<add value="index.htm" />
<add value="index.html" />
<add value="Index.php" />
<add value="Default.aspx" />
</files>
</defaultDocument>
</system.webServer>
</configuration>
