MongoDB - Change Stream Feature testing

Basically with this feature your're able to listen any changes to your database/collection. You can listen operations such as remove/update/replace/insert

To run the testings for yourself

1. Im using a MongoAtlas instance (the free one) and a collection called publications that contains documents like:

       {
           "_id" : ObjectId("5fcd16e2e1ec77148027351c"),
           "name" : "aut inventore quo dolore facilis excepturi perspiciatis",
           "ownerName" : "Sr. Ollie Delapaz",
           "type" : "TYPE_4",
           "tags" : [ 
               {
                   "_id" : ObjectId("5fcd16e2e1ec77148027351d"),
                   "name" : "et",
                   "color" : "0xD"
               }
           ],
           "content" : "lorem ipsum text,
           "__v" : 0
   }

2. Add a .env file located in the root folder with these environment vars:

       MONGO_HOST=mongodb://Cluster0-shard-0-02.test.com,Cluster0-shard-0-03.test.com
       MONGO_PORT=27017
       MONGO_SSL=true
       MONGO_DATABASE=projects
       MONGO_USER=user
       MONGO_SECRET=password
       MONGO_SET="Cluster0-shard-0"
       MONGO_SRV=false
   

3. Run:

       $ npm install 
       $ npm start 

4. To Update documents use in a new console:

       $ npm run start:update