无需请求即可获取 Rails 应用程序域名

Question

Is there a way to get Rails` app domain name without use of the request?

I know how to get URL from the request, but what if there is no request and Rails is just running a delayed job task, can i get a domain name of the server where the Rails app is hosted?

Answer 1

There isn't a per se way of doing this due to how Rails is built but if it is a big enough project it might me stored somewhere.

So you could look for a place where it is being set and use that elsewhere.

For example, if the project uses request_store you could search for something like:

RequestStore.store[:host] = SomeTable.stored_host_name

And use SomeTable.stored_host_name in your worker or migration or the place you want to use it which doesn't have a request at hand.

Have a great day!