babel.config.json

{
  // @see https://babeljs.io/docs/en/options#sourcetype
  "sourceType": "unambiguous",
  // @see https://babeljs.io/docs/en/options#babelrcroots
  "babelrcRoots": [
    // Keep the root as a root
    ".",

    // Also consider monorepo packages "root" and load their .babelrc.json files.
    "./libs/*",
    "./tools/*"
  ],
  // @see https://babeljs.io/docs/en/options#presets
  "presets": [
    "@babel/preset-env",
    [
      // @see https://babeljs.io/docs/en/babel-preset-typescript
      "@babel/preset-typescript",
      {
        "onlyRemoveTypeImports": false
      }
    ]
  ],
  "plugins": [
    "@babel/plugin-transform-shorthand-properties",
    "@babel/plugin-transform-block-scoping",
    [
      "@babel/plugin-proposal-decorators",
      {
        "legacy": true
      }
    ],
    [
      "@babel/plugin-proposal-class-properties",
      {
        "loose": true
      }
    ],
    [
      "@babel/plugin-proposal-private-property-in-object",
      {
        "loose": true
      }
    ],
    [
      "@babel/plugin-proposal-private-methods",
      {
        "loose": true
      }
    ],
    "@babel/plugin-syntax-dynamic-import",
    [
      "@babel/plugin-proposal-object-rest-spread",
      {
        "loose": true,
        "useBuiltIns": true
      }
    ],
    "@babel/plugin-transform-classes",
    "@babel/plugin-transform-arrow-functions",
    "@babel/plugin-transform-parameters",
    "@babel/plugin-transform-destructuring",
    "@babel/plugin-transform-spread",
    "@babel/plugin-transform-for-of",
    "babel-plugin-macros",
    "transform-jsbi-to-bigint",
    "@babel/plugin-proposal-optional-chaining",
    "@babel/plugin-proposal-nullish-coalescing-operator",
    [
      "babel-plugin-polyfill-corejs3",
      {
        "method": "usage-global",
        "absoluteImports": "core-js",
        "version": "3.22.7"
      }
    ],
    [
      "relay",
      {
        "artifactDirectory": "./libs/common/client/data-access__generated__/relay",
        "extensions": ["ts", "tsx"]
      }
    ]
  ]
}