Parameterized message tutorial continued

Setup Express

We are using Express since it's a popular way to connect everything in your app. However, these steps are intended for setting up your preferred framework. If your framework is already in place, skip this step.

Install Express in your app's directory.
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```
$ npm install express 
```
Open up the app in your favorite IDE and navigate to your app.
Double check that Express and Node Fetch were added to the package.json dependencies list.

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{
  "dependencies": {
    "express": "^4.17.3"
    "node-fetch": "^3.2.3"
  }
}

Next, setup app.js ->

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