Initial tests on sppech synthesis

frontend/server/src/app.ts

@@ -27,6 +27,7 @@ module.exports = function (configLocation, viteProxy) {
       "databases"
     )
   );
+  const textToSpeechRouter = require("./routes/api/texttospeech")();
 
   /* Load the config and create the express app */
   let config = {};
@@ -75,10 +76,12 @@ module.exports = function (configLocation, viteProxy) {
   app.use("/api/airbases", airbasesRouter);
   app.use("/api/elevation", elevationRouter);
   app.use("/api/databases", databasesRouter);
+  app.use("/api/texttospeech", textToSpeechRouter);
   app.use("/resources", resourcesRouter);
   app.use("/express/api/airbases", airbasesRouter);
   app.use("/express/api/elevation", elevationRouter);
   app.use("/express/api/databases", databasesRouter);
+  app.use("/express/api/texttospeech", textToSpeechRouter);
   app.use("/express/resources", resourcesRouter);
 
   /* Set default index */

frontend/server/src/routes/api/texttospeech.ts

@@ -0,0 +1,14 @@
+import express = require('express');
+import fs = require('fs');
+var gtts = require('node-gtts')('en');
+
+const router = express.Router();
+
+module.exports = function () {
+    router.put( "/generate", ( req, res, next ) => {        
+        res.set({'Content-Type': 'audio/mpeg'});
+        gtts.stream(req.body.text).pipe(res);
+    });
+
+    return router; 
+}