Update for "Building a Single Page Application with Cro" (just a detail)

[arjancwidlak]

Thank you for your great and complete tutorial "Building a Single Page Application with Cro". I'm in the process of following it.

There is an updated needed however, here:
https://cro.services/docs/intro/spa-with-cro#Setting_up_React
Because:

1. babel-preset-es2015 is deprecated
2. The automatic installation of peer dependencies was removed with npm 3.

Therefore, update the
npm install --save-dev babel-loader babel-core babel-preset-es2015 babel-preset-react
to:
npm install --save-dev babel-loader core-js@^3 @babel/core@^7 @babel/preset-react

And update the:
{ "presets" : ["es2015","react"] }
to
{ "presets": ["@babel/preset-react"] }
See also here: https://babeljs.io/docs/en/env/

With these changes
npm run build
works.

A bit further, after the text below, the code seems to be missing:

Next up, we'll create a Redux store, which is the thing that holds the latest version of the state produced by the reducer. We create it simply by passing our reducer to createStore:

Probably something like this is needed there: https://redux.js.org/api/createstore

And while I'm on it. I've also a question. Why doesn't the Cro server use the P6W/WAPI standard?

Kind regards,
Arjan.

[NoisomePossum]

Currently working through this tutorial myself so I appreciate the advice on the npm install part.

For the missing Redux code, there's a link to the code for the finished project at the bottom of the page. Seems like this might be the missing line: https://github.com/croservices/sample-app-spa-react/blob/master/frontend/index.js#L62