🚀 feat: Add Gemini 2.0 Support, Update Packages and Deprecations (#4951)

* chore: Comment out deprecated MongoDB connection options in connectDb.js

* replaced deprecrated MongoDB count() function with countDocuments()

* npm audit fix (package-lock cleanup)

* chore: Specify .env file in launch configuration

* feat: gemini-2.0

* chore: bump express to 4.21.2 to address CVE-2024-52798

* chore: remove redundant comment for .env file specification in launch configuration

---------

Co-authored-by: neturmel <neturmel@gmx.de>

api/lib/db/connectDb.js

@@ -25,9 +25,9 @@ async function connectDb() {
   const disconnected = cached.conn && cached.conn?._readyState !== 1;
   if (!cached.promise || disconnected) {
     const opts = {
-      useNewUrlParser: true,
-      useUnifiedTopology: true,
       bufferCommands: false,
+      // useNewUrlParser: true,
+      // useUnifiedTopology: true,
       // bufferMaxEntries: 0,
       // useFindAndModify: true,
       // useCreateIndex: true

api/models/tx.js

@@ -71,6 +71,7 @@ const tokenValues = Object.assign(
     /* cohere doesn't have rates for the older command models,
   so this was from https://artificialanalysis.ai/models/command-light/providers */
     command: { prompt: 0.38, completion: 0.38 },
+    'gemini-2.0': { prompt: 0, completion: 0 }, // https://ai.google.dev/pricing
     'gemini-1.5': { prompt: 7, completion: 21 }, // May 2nd, 2024 pricing
     gemini: { prompt: 0.5, completion: 1.5 }, // May 2nd, 2024 pricing
   },

api/package.json

@@ -56,7 +56,7 @@
     "cors": "^2.8.5",
     "dedent": "^1.5.3",
     "dotenv": "^16.0.3",
-    "express": "^4.21.1",
+    "express": "^4.21.2",
     "express-mongo-sanitize": "^2.2.0",
     "express-rate-limit": "^7.4.1",
     "express-session": "^1.18.1",

api/utils/tokens.js

@@ -50,7 +50,8 @@ const googleModels = {
   gemini: 30720, // -2048 from max
   'gemini-pro-vision': 12288, // -4096 from max
   'gemini-exp': 8000,
-  'gemini-1.5': 1048576, // -8192 from max
+  'gemini-2.0': 1048576,
+  'gemini-1.5': 1048576,
   'text-bison-32k': 32758, // -10 from max
   'chat-bison-32k': 32758, // -10 from max
   'code-bison-32k': 32758, // -10 from max