This page covers Elm 0.18

Webpack 4


Finally we want to add some npm scripts so we can run our servers easily. In package.json replace scripts with:

"scripts": {
    "api": "node api.js",
    "build": "webpack",
    "watch": "webpack --watch",
    "dev": "webpack-dev-server --port 3000"
  • So now npm run api will run our fake server.
  • npm run build will create a webpack build and put the bundles in dist.
  • npm run watch runs the webpack watcher which puts the bundles in dist as we change our source code.
  • npm run dev runs the webpack dev server.

Node Foreman

We have two servers to run for developing: the Api and the Frontend, we will need to launch both manually to test our application, this is ok but there is a nicer way.

Install Node Foreman:

npm install -g foreman

Then create a file called Procfile in the root of the project with:

api: npm run api
client: npm run dev

This will give us a cli command called nf that allows to launch and kill both processed at the same time.

Test it

Let's test our setup

In a terminal window run:

nf start

If you browse to http://localhost:3000/ you should see our application, which outputs "Hello". Use Ctrl-c to stop the servers.

Your application code should look like

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