lingator/translator.js

A plug-and-play npm package to auto-translate webpages using Google's Gemini AI.

// translator.js

export async function translateText(text, targetLanguage) {
  const API_KEY = "AIzaSyCUmYkjxf60NQKD9eJT8xxhZ_G_145LsA8"; // 🔑 Replace with your API key

  try {
    const response = await fetch(
      `https://generativelanguage.googleapis.com/v1beta/models/gemini-1.5-flash-latest:generateContent?key=${API_KEY}`,
      {
        method: "POST",
        headers: {
          "Content-Type": "application/json",
        },
        body: JSON.stringify({
          contents: [
            {
              parts: [
                {
                  text:`Translate the following text into ${targetLanguage} and respond with only the translation, nothing else:\n${text}`
,
                },
              ],
            },
          ],
        }),
      }
    );

    if (!response.ok) {
      throw new Error(`API Error: ${response.status}`);
    }

    const data = await response.json();
    console.log("✅ Gemini Response:", data);

    const translation =
      data?.candidates?.[0]?.content?.parts?.[0]?.text?.trim();

    if (!translation) {
      throw new Error("No translation returned from API");
    }

    return translation;
  } catch (error) {
    console.error("❌ API Error:", error);
    throw error;
  }
}