Why does my create-react-app have no service workers?

Question

I used the simplest and the dumbest command

npx create-react-app mia-app
cd mia-app
npm start

But after created the project everytime there are no serviceWorker. Can someone help me?

However, I've tried with npm create-create-app with this res.

Answer 1

serviceWorker.js is no longer included in the base template, as of create-react-app version 4.0.something.

Trawling through the create-react-app GitHub issues, two main workarounds keep popping up:

1. Create an app using the following template:

npx create-react-app my-app --template cra-template-pwa

or for Typescript:

npx create-react-app my-app --template cra-template-pwa-typescript

(where my-app is replaced by the name of your app)

2. If you already have an existing project, create a dummy app and copy over the relevant code. Don't forget to copy over the initialisation code from index.js/index.tsx if you do this too.