Virtual host matching

I'm trying to set up a redirect service in Azure. I can do redirects from e.g. a legacy domain by pointing DNS to the static web app and then redirect to a new http url (e.g. a section on a new site)

But I can't find anywhere something similar to Apache's virtual host matching. That would allow to use one static web app to redirect for multiple legacy domains to multiple new http urls

```
{
"routes": [
{
"host": "legacy1.mydomain.com",
"route": "/*",
"redirect": "https://www.mydomain.com/legacy1",
"statusCode": 301
},
{
"host": "legacy2.mydomain.com",
"route": "/*",
"redirect": "https://www.mydomain.com/legacy2",
"statusCode": 301
}

]
}
```