npm run build
npm run start:dev
Deployment is automated with this heroku pipeline.
In oder to review the app you must create a new PR from your branch to develop branch, and from heroku pipeline, in the Review column, you should click on Create review app in order to review it.
Once you have reviewed your MR and its url from Review Apps, you can merge it and review development url.
Create a PR from develop to master, review and merge it, , wait for a success build, and then check the production url.