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MongoDB is a well-known unstructured database management system that can handle large amounts of data. It is a document-oriented database system and belongs to the NoSQL family (non-SQL).

Data and records are stored as documents that look and function like JSON objects. A document is a collection of key-value pairs that make up the basic unit of data in MongoDB.

The database system was implemented in the mid-2000s.

Developers who want to process organized, semi-structured, or unstructured data in their applications need MongoDB. People who are interested in big data analysis can also use MongoDB.

If your application's data requires agility, scalability, and high performance, MongoDB is the best choice.

It supports a wide range of applications, including real-time exploratory and predictive analytics and parallel data processing. In addition, MongoDB provides high-performance data storage even when spread across many servers.

There are two ways to install MongoDB on your MAC. One without Homebrew and the second with Homebrew.

To install via macOS Terminal, follow the steps below.

1. Let's install MongoDB. To do this, open your browser and put google.com into the address bar.
2. Type MongoDB into Google search and ideally the first link that comes up is the MongoDB link. From here you have two options for installing MongoDB.
3. Head over to the MongoDB Community to learn more. Next, choose the version, platform, and package you want to use.
4. After selecting macOS as the platform, click the Download button and tgz as the file format.
5. After downloading the tgz file, unzip it using the macOS Terminal.
6. Your MongoDB will most likely be downloaded to the Downloads folder. To do this, open the MongoDB terminal and write this command.

   sudo mv mongodb-osx-ssl-x86_64-4.4.1 /usr/local/mongodb
   

7. You have to move the MongoDB folder to local binary storage.

   sudo mv mongodb-osx-ssl-x86_64-4.4.1 /usr/local/mongodb
   

8. This will ask for your system password. Provide the password.
9. You can change directory to /usr/local/mongodb and use the ls command to see if all the files are there. Note that this step is optional.
10. To change directory, type the following command.

    cd /usr/local/mongodb
    

11. After that, you have to create the database folder. MongoDB writes or stores data in the data/db subdirectory by default.
12. So that would be its command.

    sudo mkdir -p /data/db
    

13. You can use the -p parameter to create the directory structure. For example, use the following command to see if this path and directory have been created.

    cd /data/db
    

14. To check if you are in the correct directory, enter the command: pwd. To change permissions, you must first know your login name.
15. Type the command whoami to find out your username.
16. Now change the permissions of the directory. The command to do this is:

    sudo chown /data/db
    

Install MongoDB using Homebrew

If you prefer to install MongoDB using Homebrew, follow these instructions manually.

1. On macOS, Homebrew helps install and manage programs.

   brew update
   brew tap mongodb/brew
   

2. After the Homebrew package is installed, you can use brew to download MongoDB.
3. In your macOS Terminal, type the following command.

   brew install mongodb-community@version-number
   

4. The following binaries are installed as part of this installation.

• mongod server
• mongo shell
• mongos sharded cluster query routing

5. It will take a few seconds to complete the installation. After that, create a directory to store MongoDB data using the following command.

   sudo mkdir -p /data/db
   

6. At this point, you must ensure that your data directory has the appropriate permissions. To do this, use the following command.

   sudo chown -R id -un /data/db
   

7. This ensures that the data directory is ready and has the appropriate permissions. For example, the MongoDB installation will create the following files and folders in the following location.

8. Now, you will use MongoDB Community Edition. MongoDB can be started on macOS using the brew command.
   However, the MongoDB service on macOS requires manual operation. Use the following command to run the MongoDB daemon, called mongod (process).

   brew services start mongodb-community
   

   This process will be performed by macOS as a macOS service.

9. Use the following command to kill the mongod process operating as a macOS service.

   brew services stop mongodb-community
   

10. To manually start MongoDB in the background and listen for connections on a specific port, use the following command:

• mongod -config /usr/local/etc/mongod.conf -fork for Macs with Intel CPUs.
• mongod -config /opt/homebrew/etc/mongod.conf –fork is for Macs with Apple M1 CPUs.

11. Finally, check your MongoDB version again. Type the following command: mongo –versionis a command that can be used to change the version.
    The command line will show you the MongoDB version installed on your Mac. If possible, the developers recommend using the latest version of libraries and applications.
    Also, it will keep you safe from client application compatibility issues.
12. Enter the command mongodb to display the installation list.
13. mongod -config /usr/local/etc/mongod.confStart MongoDB using the command .
14. Type the following command to connect to the MongoDB service: mongo.
15. To display all databases, use show dbsthe command.