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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.

To connect to an instance or deployment not hosted on Atlas, see the Choose a Connection Target guide.

1

Find your MongoDB Atlas Connection String

To retrieve your connection string for the deployment that you created in the previous step, log in to your Atlas account and navigate to the Database section and click the Connect button for your new deployment.

The connect button in the clusters section of the Atlas UI

Proceed to the Connect your application section and select "C++" from the Driver selection menu and the version that best matches the version you installed from the Version selection menu.

Select the Password (SCRAM) authentication mechanism.

Deselect the Include full driver code example option to view only the connection string.

2

Copy your Connection String

Click the button on the right of the connection string to copy it to your clipboard, as shown in the following screenshot:

The copy button next to the connection string in the Atlas UI
3

Update the Placeholders

Paste this connection string into a file in your preferred text editor
and replace the <username> and <password> placeholders with your database user's username and password.

Save this file to a safe location for use in the next step.

After completing these steps, you have a connection string that corresponds to your Atlas cluster.

Note

If you run into issues on this step, ask for help in the MongoDB Community Forums or submit feedback by using the Rate this page tab on the right or bottom right side of this page.

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Create a MongoDB Deployment