To create mongo database:
cd into petsnstuff
mkdir data
cd into data
type 'pwd' to get directory root path
type mongod --dbpath (root path)
open a new terminal in the data directory
type mongoimport --db petsnstuff --type csv --headerline --file ../public/csv/ingredients.csv
then
mongoimport -d petsnstuff -c nutritions --type csv --file ../public/csv/nutritions.csv --headerline
to import sample db