Connection Methods - (MongoDB Shell)

MongoDB is an open-source NoSQL database that provides high-performance, high-availability, and easy scalability. The MongoDB shell is a command-line interface that allows you to interact with MongoDB. In this page, we will discuss Connection Methods in the MongoDB Shell.

Syntax

You can launch the MongoDB shell from the command line using the mongo command or use the mongo shell methods to connect MongoDB running instances.

Here's the syntax for connecting to a MongoDB instance using different methods:

Connect to local MongoDB server

mongo

Connect to a remote MongoDB server using a connection string

mongo "mongodb+srv://<username>:<password>@<cluster-address>/test" --username <username> --password <password>

Connect to a remote MongoDB server with a specified host and port

mongo --host <hostname>:<port> --username <username> --password <password> --authenticationDatabase <database>

Example

Here's an example of connecting to a remote MongoDB server using the MongoDB shell.

mongo "mongodb+srv://cluster0.test.mongodb.net/test" --username myusername --password mypassword

Output

The output of the MongoDB shell depends on the commands you use after you've connected to a MongoDB instance.

Explanation

MongoDB shell methods allow you to connect to a MongoDB instance using various methods, including the mongo command, a connection string, a specified host, and port. The connection string method is the most common connection method used when working with MongoDB because you can easily switch between different MongoDB instances.

Use

You will need to connect to a MongoDB instance before you can perform any operations on the data. When you have a MongoDB instance ready to go, use one of the Connection Methods available to connect to the instance.

Important Points

• The mongo command is used to start the MongoDB shell.
• You can connect to a MongoDB instance using a connection string, specified host and port, or Unix domain sockets.
• You must provide valid credentials to connect to a MongoDB instance.
• You can use command-line options to specify credentials.

Summary

In this page, we discussed Connection Methods in the MongoDB Shell. We covered the syntax, examples, output, explanation, use, important points, and summary of Connection Methods. By using MongoDB Shell Connection Methods, you can connect to different MongoDB instances to perform various operations.