sample code of fileupload with scalatra + scala.js + react.js + flux
./sbt pack
(cd server-main/target/pack/bin; ./file-upload-server-main)
Then access to http://localhost:8080/ using your web browser
sbt pack
cmd /C "cd server-main/target/pack/bin && file-upload-server-main"
Then access to http://localhost:8080/ using your web browser