How can I next.js application on subpath of a domain?

[holy-dev]

I have to deploy nextjs application on a subpath. eg, domain.com/nextjs. How can I achieve it with coolify?

[redzovic]

Coolify:

• In General set the Domain to your domain with the base path (e.g.: example.com/docs)
• Then go to Advanced and turn off Strip Prefixes

Next.js:

• Go to your next.config.mjs and add your base Path to the config under the property basePath
  (e.g.: const config = {basePath: '/docs',...,};)

(It might be that you also have to append assetPrefix to your config with the base path but I didn't test that as it work just fine for me right now)