Started work on persistent session data

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

@@ -1,7 +1,6 @@
 import express = require("express");
-import fs = require("fs");
-var gtts = require("node-gtts")("en");
-
+const gtts = require("node-gtts")("en");
+const speech = require("@google-cloud/speech");
 const router = express.Router();
 
 module.exports = function () {
@@ -10,37 +9,30 @@ module.exports = function () {
     gtts.stream(req.body.text).pipe(res);
   });
 
-  router.get("/recognize", (req, res, next) => {
-    //// Imports the Google Cloud client library
-    //const speech = require("@google-cloud/speech");
-//
-    //// Creates a client
-    //const client = new speech.SpeechClient();
-//
-    //// The path to the remote LINEAR16 file
-    //const gcsUri = "gs://cloud-samples-data/speech/brooklyn_bridge.raw";
-//
-    //// The audio file's encoding, sample rate in hertz, and BCP-47 language code
-    //const audio = {
-    //  uri: gcsUri,
-    //};
-    //const config = {
-    //  encoding: "LINEAR16",
-    //  sampleRateHertz: 16000,
-    //  languageCode: "en-US",
-    //};
-    //const request = {
-    //  audio: audio,
-    //  config: config,
-    //};
-//
-    //// Detects speech in the audio file
-    //client.recognize(request).then((response) => {
-    //  const transcription = response.results
-    //    .map((result) => result.alternatives[0].transcript)
-    //    .join("\n");
-    //  console.log(`Transcription: ${transcription}`);
-    //});
+  router.put("/recognize", (req, res, next) => {
+    // Creates a client
+    const client = new speech.SpeechClient();
+    
+    // The audio file's encoding, sample rate in hertz, and BCP-47 language code
+    const audio = {
+      content: req.body.data.substring(req.body.data.indexOf("base64,") + 7),
+    };
+    const config = {
+      encoding: "WEBM_OPUS",
+      languageCode: "en-US"
+    };
+    const request = {
+      audio: audio,
+      config: config,
+    };
+
+    // Detects speech in the audio file
+    client.recognize(request).then((response) => {
+      const transcription = response[0].results 
+        .map((result) => result.alternatives[0].transcript)
+        .join("\n");
+      res.send(transcription)
+    }).catch((error) => res.sendStatus(400)); 
   });
 
   return router;

frontend/server/src/routes/resources.ts

@@ -2,6 +2,9 @@ import express = require("express");
 import fs = require("fs");
 const router = express.Router();
 
+let sessionHash = "";
+let sessionData = {}
+
 module.exports = function (configLocation) {
   router.get("/config", function (req, res, next) {
     if (fs.existsSync(configLocation)) {
@@ -70,5 +73,29 @@ module.exports = function (configLocation) {
     }
   });
 
+  router.put("/sessiondata/save/:profileName", function (req, res, next) {
+    if (req.body.sessionHash === undefined || req.body.sessionData === undefined) res.sendStatus(400);
+    let thisSessionHash = req.body.sessionHash;
+    if (thisSessionHash !== sessionHash) {
+      sessionHash = thisSessionHash;
+      sessionData = {};
+    }
+    sessionData[req.params.profileName] = req.body.sessionData;
+    res.end()
+  })
+
+  router.put("/sessiondata/load/:profileName", function (req, res, next) {
+    if (req.body.sessionHash === undefined) res.sendStatus(400);
+    let thisSessionHash = req.body.sessionHash;
+    if (thisSessionHash !== sessionHash) {
+      sessionHash = thisSessionHash;
+      sessionData = {};
+      res.sendStatus(404);
+    } else {
+      res.send(sessionData[req.params.profileName]);
+      res.end();
+    }
+  })
+
   return router;
 };