Exporting Data from MongoDB (Backup)

In this article, we will learn how to export data (take a backup) from a remote MongoDB database by example. In this example, we have a remote database hosted on MongoDB atlas and we want to take a copy from this database on our local machine.

First Step Get Your IP

In this step run the following command to get your local machine IP

dig +short myip.opendns.com @resolver1.opendns.com

The out put will be your local machine IP

Second Step add this IP in MongoDB atlas

In network access add this IP like the below image

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Third step change your DNS

Change the DNS IP to be in this file /etc/resolv.conf like the below image
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Last step mongodump

By running the following command a new folder created inside your current directory with the same database name and inside this directory you will find your collections with .bson extention

mongodump --uri 'PUT_DB_HERE_URI' --out $(pwd)

Finally to restore these data in your local machine run the following command

mongorestore --host --port 27017 -d database_name ./exported_folder_which_contains_.bson files/

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