.eslintrc

{
  "root": true,
  "parser": "@typescript-eslint/parser",
  "plugins": ["@typescript-eslint", "prettier", "jest"],
  "extends": [
    "eslint:recommended",
    "plugin:@typescript-eslint/eslint-recommended",
    "plugin:@typescript-eslint/recommended",
    "plugin:@shopify/esnext",
    "plugin:@shopify/typescript",
    "plugin:@shopify/typescript-type-checking",
    "plugin:@shopify/node",
    "plugin:jest/recommended",
    "prettier"
  ],
  "parserOptions": {
    "project": "tsconfig.json",
    "createDefaultProgram": true,
    "warnOnUnsupportedTypeScriptVersion": false
  },
  "rules": {
    "prettier/prettier": 2,
    "no-console": 1,
    "no-unused-vars": 0,
    "default-case": 2,
    "max-lines": [2, 400],
    "max-len": [
      2,
      {
        "code": 120
      }
    ],
    "no-else-return": 2,
    "max-lines-per-function": [2, 255],
    "@typescript-eslint/no-unused-vars": 2,
    "@typescript-eslint/no-empty-interface": 2,
    "@typescript-eslint/naming-convention": [
      2,
      {
        "selector": "interface",
        "format": ["StrictPascalCase"]
      },
      {
        "selector": "variable",
        "format": ["strictCamelCase", "UPPER_CASE", "snake_case"]
      },
      {
        "selector": "typeParameter",
        "format": ["PascalCase"],
        "prefix": ["T"]
      },
      {
        "selector": "variable",
        "types": ["boolean"],
        "format": ["PascalCase"],
        "prefix": ["is", "should", "has", "can", "did", "will"]
      }
    ],
    "no-shadow": 0,
    "@typescript-eslint/no-shadow": 2,
    "jest/no-disabled-tests": 1,
    "jest/no-focused-tests": 2,
    "jest/no-identical-title": 2,
    "jest/prefer-to-have-length": 1,
    "jest/valid-expect": 2
  }
}