React-router v7 always uses ./dist/development/index.js what's the /production/index.js for?

[scottdickerson]

We've been having performance and scalability issues in our Production workloads and poking around in the react-router package I noticed a ./dist/development/index.js and ./dist/production/index.js

I noticed in our logs that the react-router/dist/development/index.js is always used even if I build and run in production mode

> react-router-serve ./build/server/index.js

[react-router-serve] http://localhost:3000 (http://192.168.7.206:3000)
Error: No route matches URL "/bogus"
    at getInternalRouterError (/Users/ScottDickerson/Documents/GitHub/react-router-prod-app/node_modules/react-router/dist/development/index.js:4264:5)
    at Object.query (/Users/ScottDickerson/Documents/GitHub/react-router-prod-app/node_modules/react-router/dist/development/index.js:2815:19)
    at handleDocumentRequest (/Users/ScottDickerson/Documents/GitHub/react-router-prod-app/node_modules/react-router/dist/development/index.js:9906:40)
    at requestHandler (/Users/ScottDickerson/Documents/GitHub/react-router-prod-app/node_modules/react-router/dist/development/index.js:9832:24)
    at /Users/ScottDickerson/Documents/GitHub/react-router-prod-app/node_modules/@react-router/express/dist/index.js:50:28
No routes matched location "/bogus" 
GET /bogus 404 - - 42.246 ms

This is unlike react where the dev or prod version is picked based on that environment variable.

Is there a supported way to use the ./dist/production/index instead of the ./dist/development/index.js file? I tried aliasing it with vite.config but the package.json prevented me from directly referencing it.

[david-szabo97]

Found the relevant PR: #12437

Unfortunately, the PR doesn't offer any alternative to enable production build. 😟