Babel usage · Underbase

Underbase support third-party compilers to run migrations such as Babel, Typescript and ESM.

Instructions

First, ensure you have the following packages installed :

@babel/core
@babel/register
@babel/preset-env
@underbase/cli

Configure your babel.config.js as the following :

module.exports = {
  presets: [
    [
      '@babel/preset-env',
      {
        targets: {
          node: 'current',
        },
      },
    ],
  ],
};

You can then use Babel to transpile migration files on the fly :

underbase --require @babel/register --config underbase.config.js

Babel + Typescript

To use Babel with Typescript, you have to enable .ts extension. In order do that, we've created a package which uses @babel/register.

You still need to have @babel/register and @babel/preset-typescript installed.

See this code example.

Instructions

Install the package

yarn add -D @underbase/babel-register-ts

Then, you can use your Typescript files

underbase -r @underbase/babel-register-ts migrate 1.0