ReactJS (create-react-app) run on port 80

Question

Can somebody explain how to run my reactJS app on port 80, without specifying port

currently it works on www.mydomain.com:3001 but I want it to be visible when I go to www.mydomain.com

I can't find the solution on create-react-app docs website so I'm asking here.

If I run application with

sudo npm start

I get error that something is already using port 80 (I did specify PORT= 80)

Thanks

By default `npm` does not have `root` privilege. That means, If you try to run any application which uses port below than `1024` port, you need a `sudo` access. If that is the case, you can run your `create-react-app` with `sudo PORT=80 npm start`. That should do the job. Hope this helps — Prakash Kandel, Feb 13 '18 at 08:59

score 8 · Answer 1 · answered Feb 13 '18 at 07:39

8

you have to specify PORT env variable to run on port 80 PORT=80 npm run start

answered Feb 13 '18 at 07:39

habibi07

1

This doesn't work on Windows environments. – giovannipds Oct 17 '18 at 09:20
1

On windows, `set PORT=80` should do the same thing – Michael Dorst Apr 17 '19 at 18:07
2

using `sudo PORT=80 npm run start` – YuAn Shaolin Maculelê Lai Sep 18 '19 at 03:40
1

you can use `npm run build` command to build a production-ready app. You can host the folder created inside build directory to nginx or any other server which can run it on port 80. – Sumit Patil Jan 10 '20 at 06:35
1

It's a really bad idea to run npm with sudo privilege. Better to run a local tunnel from react server's port to port 80, that way only the tunnel needs sudo. – thesmart Mar 10 '22 at 20:58

1 Answers1