added databaselist code

.env

@@ -1,2 +1,4 @@
 MONGO_URI="mongodb+srv://rjReactDev:Deadrjs%[email protected]/?retryWrites=true&w=majority"
-PORT=3033
+PORT=3033
+# local db url should be replaced 
+# MONGO_URI='mongodb://localhost/nodeapi'

app.js

@@ -18,6 +18,7 @@ const uri = "mongodb+srv://rjReactDev:[email protected].
 
 const client = new MongoClient(uri, {
   useUnifiedTopology: true,
+  useNewUrlParser: true,
   serverApi: {
     version: ServerApiVersion.v1,
     strict: true,
@@ -29,15 +30,24 @@ async function run() {
     // Connect the client to the server	(optional starting in v4.7)
     await client.connect();
     // Send a ping to confirm a successful connection
-    // await client.db("admin").command({ ping: 1 });
+    await client.db("admin").command({ ping: 1 });
     console.log("Pinged your deployment. You successfully connected to MongoDB!");
+    await listDatabases(client);
   } finally {
     // Ensures that the client will close when you finish/error
     await client.close();
   }
 }
 run().catch(console.dir);
 
+//get all database list
+async function listDatabases(client) {
+  databasesList = await client.db().admin().listDatabases();
+
+  console.log("Databases:");
+  databasesList.databases.forEach(db => console.log(` - ${db.name}`));
+};
+
 //const postRoutes =require('./routes/post')
 
 //using destructuring method