MongoDB
MongoDB is a NoSQL database program.
Installation
If no extra configuration is needed, you'll only use the following line to install and enable MongoDB. This will give you a mongodb with authentication disabled, listening on 127.0.0.1 and the database path to store the data is /var/db/mongodb.
...
services.mongodb.enable = true;
...
Configuration
Here's an example with multiple options. Beware that putting your password in cleartext into the config should not be done. Please check Comparison of secret managing schemes for that matter.
services.mongodb = {
enable = true;
package = "mongodb-5_0";
enableAuth = true;
initialRootPassword = "YourSecurePassword";
bind_ip = "10.5.0.2";
};