# Translations

Descriptive fields — such as names or descriptions — can be localized and translated into multiple languages.

In the Emporix Commerce Engine, localized fields are stored in the form of String-String maps, where the keys are language codes and the values are the translations.

{% hint style="warning" %}
Language codes must match the ones defined in your language configurations.

For more information on language configurations, check out the [Language Configuration Tutorials](https://github.com/emporix/api-references/blob/main/content/language/README.md).
{% endhint %}

## How to create a localized object in a specific language

To create an object where field values are specified in one language, you need to call a `POST` endpoint for a specific resource with the `Content-Language` header set to the language's [IETF BCP 47 tag](https://en.wikipedia.org/wiki/IETF_language_tag).

{% hint style="warning" %}
When you set the `Content-Language` header to a specific language, you need to pass the localized fields as Strings.
{% endhint %}

{% hint style="warning" %}
***What if I don't specify the fields' language?***

If you do not specify a language in which the values are expressed, the Emporix API will assume the values are expressed in your tenant's default language.
{% endhint %}

Here's an example on how to create a measurement unit with its name in German:

```bash
curl -i -X POST \
  'https://api.emporix.io/unit-handling/{tenant}/units' \
  -H 'Authorization: Bearer {{OAUTH2_ACCESS_TOKEN}}' \
  -H 'Content-Language: de' \
  -H 'Content-Type: application/json' \
  -d '{
    "code": "kg",
    "name": "kilogram",
    "type": "mass",
    "baseUnit": true,
    "symbol": "kg",
    "factor": 1
  }'
```

## How to create a localized object in multiple languages

To create an object where field values are translated to multiple languages, you need to call a `POST` endpoint for a specific resource with the `Content-Language` header set to `*`.

{% hint style="warning" %}
When you set the `Content-Language` header to `*`, you need to pass the translations as maps of String-String pairs.
{% endhint %}

Here's an example on how to create a measurement unit with its name in multiple languages:

```bash
curl -i -X POST \
  'https://api.emporix.io/unit-handling/{tenant}/units' \
  -H 'Authorization: Bearer {{OAUTH2_ACCESS_TOKEN}}' \
  -H 'Content-Language: *' \
  -H 'Content-Type: application/json' \
  -d '{
    "code": "kg",
    "name": "kilogram",
    "type": "mass",
    "baseUnit": true,
    "symbol": "kg",
    "factor": 1
  }'
```

## How to retrieve a localized object in a specific language

To retrieve localized fields in one language, you need to call a `GET` endpoint for a specific resource with the `Accept-Language` header set to the language's [IETF BCP 47 tag](https://en.wikipedia.org/wiki/IETF_language_tag).

Here's an example on how to retrieve a product's localized fields in German:

```bash
curl -i -X GET \
  'https://api.emporix.io/product/{tenant}/products/{productId}?fields=name%2Ccode&expand=string&rawValue=true' \
  -H 'Accept-Language: de' \
  -H 'Authorization: Bearer {{OAUTH2_ACCESS_TOKEN}}'
```

## How to retrieve a localized object in all available languages

To retrieve localized fields in all available languages, you need to call a `GET` endpoint for a specific resource with the `Accept-Language` header set to `*`.

Here's an example on how to retrieve a product's localized fields in all available languages:

```bash
curl -i -X GET \
  'https://api.emporix.io/product/{tenant}/products/{productId}?fields=name%2Ccode&expand=string&rawValue=true' \
  -H 'Accept-Language: *' \
  -H 'Authorization: Bearer {{OAUTH2_ACCESS_TOKEN}}'
```

## How to add localized fields to an existing object

To add translations to an existing object's localizable fields, you need to call a `PUT` or a `PATCH` endpoint for a specific resource with the `Content-Language` header set to `*`.

{% hint style="warning" %}
When you add translations to an existing object, you need to always pass the translations as maps of String-String pairs.
{% endhint %}

Here's an example on how to add translations to a measurement unit's name:

```bash
curl -i -X PUT \
  'https://api.emporix.io/unit-handling/{tenant}/units/{unitCode}' \
  -H 'Authorization: Bearer {{OAUTH2_ACCESS_TOKEN}}' \
  -H 'Content-Language: fr' \
  -H 'Content-Type: application/json' \
  -d '{
    "code": "kg",
    "name": {
      "de": "Kilogramm",
      "en": "kilogram",
      "pl": "kilogram",
      "fr": "kilogramme"
    },
    "type": "mass",
    "baseUnit": true,
    "factor": 1,
    "metadata": {
      "version": 1
    }
  }
```


---

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Perform an HTTP GET request on the current page URL with the `ask` query parameter:

```
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```

The question should be specific, self-contained, and written in natural language.
The response will contain a direct answer to the question and relevant excerpts and sources from the documentation.

Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.