MongoDB

Installing MongoDB Community Edition on the backend server is the easiest method. However, any server will work.

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macOS

brew install mongodb-community
brew services start mongodb/brew/mongodb-community

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Debian / Ubuntu / Windows Server

Download MongoDB Community Edition.

Debian: Install Instructions Ubuntu: Install Instructions Windows Server: Install Instructions

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Once installed, other than copying the default application.properties file, there is no other configuration that needs to be done. If, however, the MongoDB CE server isn't on the same machine as the backend server, then the application.properties file will need to be configured properly.