Chapter 11

Prerequisites

The following software is required to run the sample:

• Git
• Node.js
• npm

Running

Go to the current directory and run npm install:

npm install

Now start the application:

npm start

Steps

Follow these steps to implement the same from scratch.

1. Initialize a new project and add the dependencies

npm init -y
npm install file-loader svelte svelte-loader webpack webpack-cli --save-dev

2. Add a webpack.config.js and make sure to target library (with the name of the package)

3. Copy over the balance sheet code from the previous sample

4. Change the index.js to export a setup function

export function setup(api) {
  let Info = undefined;

  api.registerExtension("balance-info", {
    bootstrap: () =>
      import("./Info.svelte").then((content) => {
        Info = content.default;
      }),
    mount: (target, props) =>
      new Info({
        target,
        props,
      }),
    unmount: (_, info) => info.$destroy(),
  });
}

5. Build the MF with Webpack (npx webpack --mode production) and then publish it using

npm pack
curl -F 'file=@./tax-1.0.0.tgz' http://localhost:9000/modules
rm *.tgz

where localhost:9000 is the address of the feed server