ajv-i18n

Internationalised error messages for Ajv - superfast JSON validator for JSON Schema and JSON Type Definition.

Supported locales

¹ added boolean schema, keywords const, contains, propertyNames

² added keywords if/then/else

³ added messages for keywords unevaluatedProperties, unevaluatedItems, dependentRequired

⁴ keyword items messages

⁵ JSON Type Definition

* discriminator form messages are not translated

Please contribute locales that you need to use if they are missing or incomplete.

Install

Using npm:

npm install ajv-i18n

Usage

In node:

const Ajv = require("ajv") // version >= 8.0.0
const localize = require("ajv-i18n")
// or for JSON Type Definition
// const localize = require("ajv-i18n/localize/jtd")

const ajv = Ajv({allErrors: true, messages: false})
const validate = ajv.compile(schema)
const valid = validate(data)

if (!valid) {
  // ru for Russian
  localize.ru(validate.errors)
  // string with all errors and data paths
  console.log(ajv.errorsText(validate.errors, {separator: '\n'}))
}

To require only necessary locales (e.g., with browserify):

const localize_ru = require('ajv-i18n/localize/ru')
// or for JSON Type Definition
// const localize_ru = require('ajv-i18n/localize/ru/jtd')

or

const localize = {
  en: require('ajv-i18n/localize/en'),
  ru: require('ajv-i18n/localize/ru'),
}

See Ajv docs for more information.

Tests

npm install
git submodule update --init
npm test

Contributing

Functions that localize error messages are generated using doT template localize.jst, JSON Schema messages and JSON Type Definition messages. Templates are pre-compiled, so doT is not a run-time dependency.

npm run build - compiles functions to localize folder.

Contributors of locales

Enterprise support

ajv-i18n package is a part of Tidelift enterprise subscription - it provides a centralised commercial support to open-source software users, in addition to the support provided by software maintainers.

Security contact

To report a security vulnerability, please use the Tidelift security contact. Tidelift will coordinate the fix and disclosure. Please do NOT report security vulnerability via GitHub issues.

License

MIT