Generally speaking, swagger-core generates the API definition at runtime (just like another API endpoint). It's a bit unclear from your description how your application works. so:
- If your UI is intended to run alongside the API, you can simply point the UI to the generated definition at runtime. That way it's always up to date and there's no issue.
- If you need the UI to be completely independent from the application, you can use the maven plugin we have to generate the definition at build time and put it wherever you need. More information can be found at https://github.com/swagger-api/swagger-core/tree/master/modules/swagger-maven-plugin.
