Create a Connection String
You can connect to your MongoDB deployment by providing a connection URI, also called a connection string, which instructs the driver on how to connect to a MongoDB deployment and how to behave while connected.
The connection string includes the hostname or IP address and port of your deployment, the authentication mechanism, user credentials when applicable, and connection options.
Find your MongoDB Atlas connection string
To retrieve your connection string for the deployment that you created in the previous step, log into your Atlas account and navigate to the Clusters section and click the Connect button for your new deployment.
Proceed to the Connect your application section and select "Python" from the Driver selection menu and the version that best matches the version you installed from the Version selection menu.
Edit your connection string credentials
Paste your connection string into a file in your preferred text editor and save this file to a safe location for later use. Your connection string resembles the following example:
mongodb+srv://<db_username>:<db_password>@samplecluster.ojeyz.mongodb.net/?retryWrites=true&w=majority&appName=SampleCluster
Replace the <db_username> and <db_password> placeholders with
your database user's username and password.
After completing these steps, you have a connection string that contains your database username, database password, and database name.