LibreTranslator.js

/**
 * Homepage: https://github.com/LibreTranslate/LibreTranslate
 * Demo: https://libretranslate.com/
 * API docs: https://libretranslate.com/docs/
 */
class LibreTranslator {
	// URL of your instance of LibreTranslate
	// for local instance use URL "http://localhost/translate"
	apiPath = 'https://translate.terraprint.co/translate';
	// Insert API key if you have
	apiKey = '';

	translate = (text, from, to) => {
		return fetch(this.apiPath, {
			credentials: 'omit',
			headers: {
				'User-Agent':
					'Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:99.0) Gecko/20100101 Firefox/99.0',
				Accept: '*/*',
				'Accept-Language': 'en-US,en;q=0.5',
				'Sec-Fetch-Dest': 'empty',
				'Sec-Fetch-Mode': 'cors',
				'Sec-Fetch-Site': 'same-origin',
				'Content-Type': 'application/json',
			},
			method: 'POST',
			mode: 'cors',
			body: JSON.stringify({
				q: text,
				source: from,
				target: to,
				format: 'text',
				api_key: this.apiKey,
			}),
		})
			.then((r) => r.json())
			.then(({ translatedText }) => translatedText);
	};

	translateBatch = (texts, from, to) =>
		Promise.all(texts.map((text) => this.translate(text, from, to)));

	getLengthLimit = () => 4000;
	getRequestsTimeout = () => 300;
	checkLimitExceeding = (text) => {
		const textLength = !Array.isArray(text)
			? text.length
			: text.reduce((len, text) => len + text.length, 0);

		return textLength - this.getLengthLimit();
	};

	static isSupportedAutoFrom = () => true;
	// prettier-ignore
	static getSupportedLanguages = () => [
		"en", "ar", "az", "zh", "cs",
		"nl", "eo", "fi", "fr", "de",
		"el", "hi", "hu", "id", "ga",
		"it", "ja", "ko", "fa", "pl",
		"pt", "ru", "sk", "es", "sv",
		"tr", "uk", "vi"
	];
}

LibreTranslator;