### Translate i18n JSON files using npx CLI

Source: https://github.com/while1618/i18n-auto-translation/blob/main/README.md

This command demonstrates how to use the `i18n-auto-translation` CLI tool via `npx`. It requires a subscription key (`-k`), the project directory containing i18n files (`-d`), and the desired target language for translation (`-t`).

```bash
$ npx i18n-auto-translation -k SUBSCRIPTION_KEY -d PROJECT_DIR -t DESIRED_LANGUAGE
```

--------------------------------

### i18n-auto-translation Command-Line Interface Options

Source: https://github.com/while1618/i18n-auto-translation/blob/main/README.md

Detailed reference for command-line arguments used to configure the i18n-auto-translation tool. This includes options for selecting API providers, specifying input/output file paths, defining source and target languages, and controlling translation behavior such as overriding existing translations, setting request delays, and managing output formatting.

```APIDOC
Options:
  --help:
    Alias: /
    Description: All available options.
    Default: /
  --version:
    Alias: /
    Description: Current version.
    Default: /
  --apiProvider:
    Alias: -a
    Description: API Provider.
    Default: google-official
  --key [required]:
    Alias: -k
    Description: Subscription key for the API provider.
    Default: /
  --region:
    Alias: -r
    Description: Key region. Used only by the Official Azure API.
    Default: global
  --filePath [filePath or dirPath required]:
    Alias: -p
    Description: Path to a single JSON file.
    Default: /
  --dirPath [filePath or dirPath required]:
    Alias: -d
    Description: Path to a directory in which you will recursively find all JSON files named [from].json (e.g. en.json)
    Default: /
  --from:
    Alias: -f
    Description: From which language you want to translate.
    Default: en
  --to [required]:
    Alias: -t
    Description: To which language you want to translate.
    Default: /
  --override:
    Alias: -o
    Description: Override existing translation(s).
    Default: false
  --certificatePath:
    Alias: -c
    Description: Path to a custom certificate.
    Default: /
  --spaces:
    Alias: -s
    Description: Number of spaces to use when generating output JSON files.
    Default: 2
  --maxLinesPerRequest:
    Alias: -l
    Description: Maximum number of lines per request. For every `x` number of lines, separated request is sent to the api.
    Default: 50
  --context:
    Alias: -x
    Description: Context for the translation. Used only by the DeepL API.
    Default: /
  --formality:
    Alias: -m
    Description: Formality for the translation. Used only by the DeepL API.
    Default: default
  --trim:
    Alias: -i
    Description: Trim string after translation.
    Default: true
  --delay:
    Alias: -e
    Description: Delay between every request made to the translate api.
    Default: 250
  --saveTo:
    Alias: -v
    Description: Override where translated file should be saved. (use only with `--filePath` option)
    Default: /
  --glossary:
    Alias: -g
    Description: Specify the glossary to use for the translation. Used only by the DeepL API.
    Default: /
```

--------------------------------

### Supported Translation Providers and CLI Identifiers

Source: https://github.com/while1618/i18n-auto-translation/blob/main/README.md

A comprehensive list of officially supported translation service providers, detailing their full names and the corresponding identifiers used for command-line interface operations within the i18n-auto-translation project.

```APIDOC
Provider List:
- Google Translate Official (CLI: google-official)
- Azure Translator Official (CLI: azure-official)
- Azure Translator RapidAPI (CLI: azure-rapid)
- Deep Translate RapidAPI (CLI: deep-rapid)
- Lecto Translation RapidAPI (CLI: lecto-rapid)
- Lingvanex Translate RapidAPI (CLI: lingvanex-rapid)
- NLP Translation RapidAPI (CLI: nlp-rapid)
- Deepl (CLI: deepl-pro / deepl-free)
```

--------------------------------

### API for Custom Translation Provider Integration

Source: https://github.com/while1618/i18n-auto-translation/blob/main/README.md

Defines the interface and steps required to integrate a new custom translation provider. This involves extending the base 'Translate' class and implementing its core translation method, followed by registration within the system's configuration.

```APIDOC
Interface for Custom Translation Providers:

Base Class to Extend: Translate
  Location: src/translate/providers/

Required Method Implementation:
  callTranslateAPI(text: string, sourceLang: string, targetLang: string): Promise<string>
    Purpose: Performs the actual translation using the custom provider's API.
    Parameters:
      text (string): The text to be translated.
      sourceLang (string): The source language of the text.
      targetLang (string): The target language for translation.
    Returns: Promise<string> - A promise that resolves with the translated text.

Registration Steps:
1. Register the new provider class in 'translate-supplier.ts'.
2. Add the new provider's CLI identifier to the choices in 'cli.ts'.
```

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