HTTP redirect to HTTPS

I have a web site that I have published.  This is published on my own Windows Server 2019 server.  

When I hit the URL http://mysite.com, it works great.  I can type mysite.com, http://mysite.com, www.mysite.com and it all works like a charm.

I bought an SSL cert, installed it on the server, added the binding and now I need my http to redirect to https.

I've read up on this and I see that there is an HTTP redirect I can install on my IIS server.  

I see I can use IIS URL rewrite (looks intimidating, but I can figure it out).

I see some docs on editing the .htaccess file.

I need the "best" and easiest way to do this.  I prefer simple and I prefer to use the tools Microsoft has versus jumping thru a million hoops or having to have a PhD in IIS, so, if you please, guide me in my endeavor.

Thanks

Eric