Create groups tutorial continued

Set up your application

Once your free Sinch account is setup and you have a virtual number, create a new folder for your app.
Then start up a node app with npm.
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```
npm init
```
Accept the defaults for the application.
Add the fetch package with npm to generate the necessary dependencies.
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```
npm install node-fetch
```

The node fetch package requires us to use node modules. We'll use .mjs files instead of .js files.