{
  "$id": "https://json.schemastore.org/esmrc.json",
  "$schema": "http://json-schema.org/draft-07/schema#",
  "additionalProperties": false,
  "properties": {
    "cjs": {
      "description": "A boolean or object for toggling CJS features in ESM",
      "default": true,
      "oneOf": [
        {
          "type": "boolean",
          "default": true
        },
        {
          "type": "object",
          "properties": {
            "cache": {
              "type": "boolean",
              "description": "A boolean for storing ES modules in require.cache",
              "default": true
            },
            "esModule": {
              "type": "boolean",
              "description": "A boolean for __esModule interoperability",
              "default": true
            },
            "extensions": {
              "type": "boolean",
              "description": "A boolean for respecting require.extensions in ESM",
              "default": true
            },
            "mutableNamespace": {
              "type": "boolean",
              "description": "A boolean for importing named exports of CJS modules",
              "$comment": "https://ponyfoo.com/articles/es6-modules-in-depth#import-all-the-things",
              "default": true
            },
            "namedExports": {
              "type": "boolean",
              "description": "A boolean for importing named exports of CJS modules",
              "$comment": "https://ponyfoo.com/articles/es6-modules-in-depth#importing-named-exports",
              "default": true
            },
            "paths": {
              "type": "boolean",
              "description": "A boolean for following CJS path rules in ESM",
              "$comment": "https://github.com/nodejs/node-eps/blob/master/002-es-modules.md#432-removal-of-non-local-dependencies",
              "default": true
            },
            "vars": {
              "type": "boolean",
              "description": "A boolean for __dirname, __filename, and require in ESM",
              "default": true
            },
            "dedefault": {
              "type": "boolean",
              "description": "A boolean for requiring ES modules without the dangling require().default",
              "default": false
            },
            "topLevelReturn": {
              "type": "boolean",
              "description": "A boolean for top-level return support",
              "default": false
            }
          }
        }
      ]
    },
    "mainFields": {
      "type": "array",
      "description": "An array of fields checked when importing a package",
      "default": ["main"],
      "uniqueItems": true,
      "items": {
        "type": "string",
        "description": "Fields from package.json"
      }
    },
    "mode": {
      "type": "string",
      "description": "A string describing the mode in which to detect ESM module files",
      "default": "auto",
      "oneOf": [
        {
          "const": "auto",
          "description": "'auto' detect files with import, import.meta, export, 'use module', or .mjs as ESM",
          "$comment": "https://github.com/tc39/proposal-modules-pragma"
        },
        {
          "const": "all",
          "description": "'all' files besides those with 'use script' or .cjs are treated as ESM"
        },
        {
          "const": "strict",
          "description": "'strict to treat only .mjs files as ESM"
        }
      ]
    },
    "await": {
      "type": "boolean",
      "description": "A boolean for top-level await in modules without ESM exports. (Node 10+)",
      "$comment": "https://github.com/tc39/proposal-top-level-await",
      "default": false
    },
    "force": {
      "type": "boolean",
      "description": "A boolean to apply these options to all module loads",
      "default": false
    },
    "wasm": {
      "type": "boolean",
      "description": "A boolean for WebAssembly module support. (Node 8+)",
      "$comment": "https://nodejs.org/api/globals.html#globals_webassembly",
      "default": false
    },
    "cache": {
      "type": "boolean",
      "description": "[dev] A boolean for toggling cache creation or a cache directory path",
      "default": true
    },
    "sourceMap": {
      "type": "boolean",
      "description": "[dev] A boolean for including inline source maps",
      "default": false
    }
  },
  "title": "Configuration files for the esm module/package in Node.js"
}
