+ add google translate

+ return promise of string / not object

README.md

@@ -37,6 +37,7 @@
 ### How To Run
 * enter API-keys into `keys-template.json`, then rename to `keys.json`.
 * see `Dockerfile`
+* also, suggested to use separate bot for testing.
 
 
 ### Special Thanks

keys-template.json

@@ -1,4 +1,6 @@
 {
   "DEEPL": "",
-  "TRANSLATE_REEBOT": ""
+  "GOOGLE": "",
+  "TRANSLATE_REEBOT": "",
+  "TEST_TRANSLATE_REEBOT": ""
 }

package.json

@@ -8,6 +8,7 @@
     "serve": "node dist/bot-adapter.js"
   },
   "dependencies": {
+    "@google-cloud/translate": "^6.3.1",
     "@types/node": "^18.0.0",
     "@types/node-telegram-bot-api": "^0.57.0",
     "deepl-node": "^1.3.1",

src/bot-hooks.ts

@@ -32,7 +32,7 @@ bot.on('inline_query', async (query: InlineQuery) => {
     } else {
         return;
     }
-    const translated = (await translate(transText, lang)).text;
+    const translated = await translate(transText, lang);
     const results: Array<TelegramBot.InlineQueryResult> = [
         {
             type: 'article',

src/deepl-translate-adapter.ts

@@ -0,0 +1,8 @@
+import { Translator, TargetLanguageCode } from 'deepl-node';
+
+const translator = new Translator(require('../keys.json').DEEPL);
+
+export async function translate(text: string, lang: TargetLanguageCode): Promise<string> {
+    let textResult = await translator.translateText(text, null, lang);
+    return new Promise<string>(() => textResult.text);
+}

src/google-translate-adapter.ts

@@ -0,0 +1,10 @@
+const {Translate} = require('@google-cloud/translate').v2;
+
+const projectId = 'translate-reebot';
+const translator = new Translate({projectId});
+translator.key = require('../keys.json').GOOGLE;
+
+export async function translate(text: string, lang: string) {
+    const [translation] = await translator.translate(text, lang);
+    return new Promise<string>(() => translation);
+}

src/translate-adapter.ts

@@ -1,9 +0,0 @@
-import { TextResult, Translator } from 'deepl-node';
-
-const keys = require('../keys.json');
-const translator = new Translator(keys.DEEPL);
-
-export const translate: (a: String, b: String) => Promise<TextResult> =
-    (async (textToTranslate: any, lang: any) => {
-        return await translator.translateText(textToTranslate, null, lang);
-    });