User Guide

💿 Installation

npm install --save-dev eslint eslint-plugin-json-schema-validator

Requirements

• ESLint v6.0.0 and above
• Node.js v14.17.x, v16.x and above

📖 Usage

Configuration

New Config (eslint.config.js)

Use eslint.config.js file to configure rules. See also: https://eslint.org/docs/latest/use/configure/configuration-files-new.

Example eslint.config.js:

import eslintPluginJsonSchemaValidator from "eslint-plugin-json-schema-validator";
export default [
  // add more generic rule sets here, such as:
  // js.configs.recommended,
  ...eslintPluginJsonSchemaValidator.configs["flat/recommended"],
  {
    rules: {
      // override/add rules settings here, such as:
      // 'json-schema-validator/no-invalid': 'warn'
    },
  },
];

This plugin provides configs:

• *.configs['flat/base'] ... Configuration to enable correct JSON, YAML and TOML parsing.
• *.configs['flat/recommended'] ... Above, plus rule to validate with JSON Schema.

Legacy Config (.eslintrc)

Use .eslintrc.* file to configure rules. See also: https://eslint.org/docs/latest/use/configure/.

Example .eslintrc.js:

module.exports = {
  extends: [
    // add more generic rulesets here, such as:
    // 'eslint:recommended',
    "plugin:json-schema-validator/recommended",
  ],
  rules: {
    // override/add rules settings here, such as:
    // 'json-schema-validator/no-invalid': 'error'
  },
};

This plugin provides configs:

• plugin:json-schema-validator/base ... Configuration to enable correct JSON, YAML and TOML parsing.
• plugin:json-schema-validator/recommended ... Above, plus rule to validate with JSON Schema.

Running ESLint from the command line

If you want to run eslint from the command line, make sure you include the .json, .jsonc, .json5, .yaml, .yml and .toml extension using the --ext option or a glob pattern, because ESLint targets only .js files by default.

Examples:

eslint --ext .js,.json,.jsonc,.json5,.yaml,.yml,.toml src
eslint "src/**/*.{js,json,jsonc,json5,yaml,yml,toml}"

💻 Editor Integrations

Visual Studio Code

Use the dbaeumer.vscode-eslint extension that Microsoft provides officially.

You have to configure the eslint.validate option of the extension to check .json, .jsonc, .json5, .yaml, .yml and .toml files, because the extension targets only *.js or *.jsx files by default.

Example .vscode/settings.json:

{
  "eslint.validate": [
    "javascript",
    "javascriptreact",
    "json",
    "jsonc",
    "json5",
    "yaml",
    "toml"
  ]
}

⚡ Advanced Usage

Settings

Use .eslintrc.* file to configure settings. See also: https://eslint.org/docs/user-guide/configuring/configuration-files#adding-shared-settings.

Example .eslintrc.js:

module.exports = {
  settings: {
    "json-schema-validator": {
      http: {
        getModulePath: "",
        requestOptions: {},
      },
    },
  },
};

• http ... Settings to resolve schema URLs.
  • getModulePath ... Module path to GET the URL. The default implementation is ./src/utils/http-client/get-modules/http.ts.
  • requestOptions ... Options used in the module.

Example of http

Example of using the request module for HTTP requests.

./path/to/request-get.js:

const request = require("request");

/**
 * GET Method using request module.
 */
module.exports = function get(url, options) {
  return new Promise((resolve, reject) => {
    request.get(url, options, (error, _res, body) => {
      if (error) {
        reject(error);
        return;
      }
      resolve(body);
    });
  });
};

.eslintrc.js:

module.exports = {
  settings: {
    "json-schema-validator": {
      http: {
        getModulePath: require.resolve("./path/to/request-get.js"),
        requestOptions: {
          // Example of proxy settings.
          proxy: "http://my.proxy.com:8080/",
        },
      },
    },
  },
};

❓ FAQ

• TODO