added databaselist code

Author: rjss836

.env

@@ -1,2 +1,4 @@
 MONGO_URI="mongodb+srv://rjReactDev:Deadrjs%407@cluster0.as2wbdp.mongodb.net/?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:90QcwhEs8LNtwy7L@cluster0.as2wbdp.mongodb.
 
 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