Running our API on port 80

We are currently running our API server on port 8080, whereas the standard port for HTTP requests is port 80. It would be really inconvenient, and thus bad for user experience, to ask the consumers of our API to attach a port number to the URL for every request.

Therefore, let's change the port that Express is listening on from 8080 to 80 and see what happens. Change the SERVER_PORT environment variable to 80:

SERVER_PORT=80

Then, stop and delete the PM2 application, and run the serve script again. When we run it again, it will initially be successful:

hobnob@hobnob:$ npx pm2 delete 0; yarn run serve
...
[PM2] Done.
┌───────┬──────┬────────┬───┬─────┬─────────┐
│ Name  │ mode │ status │ ↺ │ cpu │ memory  │
├───────┼──────┼────────┼───┼─────┼─────────┤
│ index │ fork │ online │ 0 │ 0%  │ 16.9 MB │
└───────┴──────┴────────┴───┴─────┴─────────┘

However, when we check its status again, PM2 will show you that the application has errored, and it has tried to restart it 15...