如何在单个应用程序中处理多个域？ ASP.net 核心 3.0（剃须刀页面，天蓝色）

Question

I am expanding my website to another country. It's basically a listing of events.
I'd like to only show events from belgium if domain is {companyname}.be, only events from the netherlands if {companyname}.nl etc.

To keep the costs down I want this to work in a single azure web app, so I'd need to get the domain name from the request since I cannot set this in configuration.

I know i can get the current domain by using

HttpContext.Current.Request.Url.Host

But I feel I'm missing some "best practice" approach. Something that would also work in development and preproduction environments.. any documentation you know of that could help me out?

Answer 1

UPDATE

I have mapped multiple custom domains to my web app. It works well, the result as below.

PRIVIOUS

we also can use second-level domain names to fulfill your needs. You can use be.websitename.com to access on behalf of Belgian users.

//Home/getUrl
public IActionResult getUrl() {
     string url = HttpContext.Request.Host.Value;
     return Content(url);
}

You can set your second-level domain in your portal. Like pic.

Then you can test it by broswer.