eslint-import-resolver-ts

This plugin adds TypeScript support to eslint-plugin-import.

This means you can:

• import/require files with extension .ts/.tsx!
• Use paths defined in tsconfig.json.
• Prefer resolve @types/* definitions over plain .js.
• Multiple tsconfigs support just like normal.

TOC

• Installation
• Configuration
• Contributing

Installation

# npm
npm i -D eslint-plugin-import @typescript-eslint/parser eslint-import-resolver-ts

# yarn
yarn add -D eslint-plugin-import @typescript-eslint/parser eslint-import-resolver-ts

Configuration

Add the following to your .eslintrc config:

{
  "plugins": ["import"],
  "rules": {
    // turn on errors for missing imports
    "import/no-unresolved": "error"
  },
  "settings": {
    "import/parsers": {
      "@typescript-eslint/parser": [".ts", ".tsx"]
    },
    "import/resolver": {
      // use <root>/tsconfig.json
      "ts": {
        "alwaysTryTypes": true // always try to resolve types under `<roo/>@types` directory even it doesn't contain any source code, like `@types/unist`
      },

      // use <root>/path/to/folder/tsconfig.json
      "ts": {
        "directory": "./path/to/folder"
      },

      // Multiple tsconfigs (Useful for monorepos)

      // use a glob pattern
      "ts": {
        "directory": "./packages/*/tsconfig.json"
      },

      // use an array
      "ts": {
        "directory": [
          "./packages/module-a/tsconfig.json",
          "./packages/module-b/tsconfig.json"
        ]
      },

      // use an array of glob patterns
      "ts": {
        "directory": [
          "./packages/*/tsconfig.json",
          "./other-packages/*/tsconfig.json"
        ]
      }
    }
  }
}

Contributing

• Make sure your change is covered by a test import.
• Make sure that yarn test passes without a failure.
• Make sure that yarn lint passes without conflicts.
• Make sure your code changes match our type-coverage settings: yarn type-coverage.

We have GitHub Actions which will run the above commands on your PRs.

If either fails, we won't be able to merge your PR until it's fixed.