The appsettings.json file should be given a connection string to your MongoDB databases
{
	"MongoDbCredentials": {
	    "CertificateFilePathWithName": "<optional Certificate file path with name [pfx file]>",
	    "CertificatePassword": "<optional Certificate password>",
	    "ConnectionString": "<mandatory> mongodb+srv://cluster0.fyu.mongodb.net/?authSource=%24external&authMechanism=MONGODB-X509&retryWrites=true&w=majority"
	  }
}
Sample code
var database = MongoDBClientConnection.GetDatabase("YouDatabaseName");
var collection = database.GetCollection<T>("YourCollectionName"); // of type TThe appsettings.json file should be given a connection string to your MongoDB databases, here is a sample configuration snippet :
{
	"MongoDbCredentials": {
	    "CertificateFilePathWithName": "<optional Certificate file path with name [pfx file]>",
	    "CertificatePassword": "<optional Certificate password>",
	    "ConnectionString": "<mandatory> mongodb+srv://cluster0.fyu.mongodb.net/?authSource=%24external&authMechanism=MONGODB-X509&retryWrites=true&w=majority"
	  }
}
Sample code
var database = MongoDBClientConnection.GetDatabase("YouDatabaseName");
var collection = database.GetCollection<T>("YourCollectionName"); // of type T