Way to change localhost port

[MoonlightOwl]

How can I change elm-app start default port value?
(:3000 is already occupied with another service, so I can't run my Elm app.)

[halfzebra]

Thanks for the contribution, this is totally a must!

I think it should be possible to specify the port by using -p or --port flag.

Also we need a better error, when port is occupied.

[ropwareJB]

Couldn't get a -p or --port flag to work, and there's no --help to confirm syntax.

After taking a look at halfzebra's commit ce7917749a64f6d211a7d3bdb2ab814ea882a5a7, it looks like the port is controlled by the environment variable PORT.

So, to set the port using bash, you may use PORT=8080 elm-app start

[benkoshy]

@montycarlo Thank you Josh that was perfect.

The Answer: To Change Port::

PORT=8000 elm-app start