Google Translate TypeScript. run : tsc Translator.ts

Translator.ts

class Translator {
  private APIKEY: string = null;
  private GOOGLEBASEURL: string = 'https://www.googleapis.com/language/translate/v2';
  constructor(APIKEY: string) {
    this.APIKEY = APIKEY;
  }

  private async __request(params: any) {
    const googleTranslateServerResult = await fetch(`${this.GOOGLEBASEURL}?key=${this.APIKEY}&source=${params.from}&target=${params.to}&q=${params.q}`);
    return await googleTranslateServerResult.json();
  }

  async translate(from, to, text) {
    if (!this.APIKEY) throw new Error("TRANSLATE API KEY NOT FOUND");
    const translateResult = await this.__request({
      from,
      to,
      q: text,
    }); 
    if (translateResult.data && translateResult.data.translations[0] && translateResult.data.translations[0].translatedText) {
      return translateResult.data.translations[0].translatedText
    }
    return false;
  }
}

const translator = new Translator('API KEY')
translator.translate('en', 'ru', 'Hello, friend'); ///Return promise