.eslintrc.js

module.exports = {
  env: {
    browser: true,
    es2021: true,
    node: true,
  },
  extends: [
    'eslint:recommended',
    'plugin:react/recommended',
    'plugin:@typescript-eslint/recommended',
    'plugin:react-hooks/recommended',
    'plugin:prettier/recommended',
  ],
  parser: '@typescript-eslint/parser',
  ignorePatterns: ['public/*', '.cache/*'],
  parserOptions: {
    ecmaFeatures: {
      jsx: true,
    },
    ecmaVersion: 12,
    sourceType: 'module',
  },
  plugins: ['react', '@typescript-eslint', 'eslint-plugin-import'],
  settings: {
    react: {
      version: 'detect',
    },
  },
  rules: {
    'no-console': 'warn',
    'react/self-closing-comp': 'warn',
    '@typescript-eslint/explicit-module-boundary-types': 'off',
    '@typescript-eslint/naming-convention': ['error', { selector: 'enumMember', format: ['PascalCase'] }],
    'import/no-anonymous-default-export': 'warn', // required to use Fast Refresh https://www.gatsbyjs.com/docs/how-to/custom-configuration/eslint/
  },
  overrides: [
    {
      files: ['*.js', '*.jsx'],
      rules: {
        '@typescript-eslint/no-var-requires': 'off',
      },
    },
    {
      files: ['*.stories.tsx'],
      rules: {
        'import/no-anonymous-default-export': 'off',
      },
    },
    {
      files: ['*.ts', '*.tsx'],
      rules: {
        '@typescript-eslint/prefer-nullish-coalescing': 'warn',
      },
      parser: '@typescript-eslint/parser',
      parserOptions: {
        project: './tsconfig.json',
      },
    },
    {
      files: ['*.ts', '*.tsx'],
      processor: '@graphql-eslint/graphql',
      parser: '@typescript-eslint/parser',
      extends: ['eslint:recommended', 'plugin:@typescript-eslint/recommended'],
      env: {
        es6: true,
      },
    },
    {
      files: ['*.graphql'],
      parser: '@graphql-eslint/eslint-plugin',
      plugins: ['@graphql-eslint'],
      rules: {
        '@graphql-eslint/no-anonymous-operations': 'error',
        '@graphql-eslint/naming-convention': [
          'error',
          {
            OperationDefinition: {
              style: 'PascalCase',
              forbiddenPrefixes: ['Query', 'Mutation', 'Subscription', 'Get'],
              forbiddenSuffixes: ['Query', 'Mutation', 'Subscription'],
            },
          },
        ],
      },
    },
  ],
}