.eslintrc

{
   "extends": "airbnb",

   "globals": {
      "window": true,
      "document": true,
      "fetch": true,
   },

   "rules": {

      "indent": ["error", 3],          // http://eslint.org/docs/rules/indent
      "brace-style": [                 // http://eslint.org/docs/rules/brace-style
         "error",
         "stroustrup",
         { "allowSingleLine": true }
      ],

      "no-use-before-define": [        // http://eslint.org/docs/rules/no-use-before-define.html
         "error", {
            "functions": false,
            "classes": false,
         }
      ],
      "no-param-reassign": [           // http://eslint.org/docs/rules/no-param-reassign
         "error", {
            "props": false,
         }
      ],
      "no-underscore-dangle": [      // http://eslint.org/docs/rules/no-underscore-dangle
        "error",
        { "allow": ["_id"] }
      ],
      "padded-blocks": "off",          // http://eslint.org/docs/rules/padded-blocks.html
      "max-len": "off",                // meh
      "consistent-return": "off",      // in some middlewares, returns are used to break out of a method
      "new-cap": "off",                // keystone specific style
      "array-callback-return": "off",  // conflicts with mongo

      "no-multi-spaces": [
         "warn", {
           "exceptions": {
             "Property": true,
             "ImportDeclaration": true,
             "VariableDeclarator": true,
             "AssignmentExpression": true,
           }
         }
       ],

      "react/jsx-indent": ["error", 3],
      "react/jsx-indent-props": ["error", 3],
      "react/jsx-filename-extension": ["error", { "extensions": [".js", ".jsx"] }],
      "react/prefer-es6-class": "off",
      "react/forbid-prop-types": "off",
      "react/no-unescaped-entities": "off",

      "jsx-a11y/label-has-for": "off",
      "jsx-a11y/no-static-element-interactions": "off",

   }
}