Host Angular 7 App in Wildfly as static content

I'm trying to serve an Angular 7 application using path location strategy in a Wildfly application server.

I managed to add the app as static resources, using a static file handler. So it's getting delivered correctly when an exact path is requested. E.g. requesting http://my-wildfly-server/myApp/ sends the index.html of my app.

Since I'm using path location strategy the index.html file should be sent to the client for sublinks too. E.g. requesting http://my-wildfly-server/myApp/my/route should send the index.html of my app as well.

This leads me to my actual question: Is it possible to configure Wildfly or the Undertow subsystem with some kind of filter which is equal to nginx's try_file rule? In other words: Serve the correct file, if it exists for a specific request e.g. http://my-wildfly/myApp/styles.css or otherwise fall back to the index.html and let Angular take care of the route?

If possible I'd like to avoid bundling my WebApp into a WAR-file or change it to use hash location strategy...

Solution

Just for the sake of completeness I post here my other solution to achieve my original goal. :) As I described in the comments of @Tyrone's answer, I ended up bundling the compiled Angular application into a WAR-File and adding the following files to the WEB-INF folder:

jboss-web.xml

<?xml version="1.0" encoding="UTF-8"?>
<jboss-web xmlns="http://www.jboss.com/xml/ns/javaee"
           xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
           xsi:schemaLocation="http://www.jboss.com/xml/ns/javaee http://www.jboss.org/j2ee/schema/jboss-web_5_1.xsd">
    <context-root>/</context-root>
</jboss-web>

I wanted my web application to be hosted in the root of the web server. Therefore the context-root is /...

undertow-handlers.conf

path-prefix('/api') -> done
regex('^(.*\/)(.*\.[a-zA-Z0-9]{2,5})$') -> done
path-prefix('/en') -> rewrite('/en')
path-prefix('/de') -> rewrite('/de')
path-prefix('/') -> rewrite('/en')

All my /api calls should go directly to the corresponding route (configured in the API WAR-File). The second line with the regex ensures, that every call to something which is most probably a file, goes through directly as well... Since I have a multi-language application I need to redirect the different languages to the index.html file of the correct folder (line 3 and 4). And last but not least, if the root of the web server is hit I want to redirect to the default language, which in my case is English (line 5).

Hope that helps.