- db: 'docDb'
- collection: 'docs'
- fields: 'username', 'type', 'file'
- db: 'myDb'
- table: 'users'
- fields: 'username', 'password'
- table: 'userdetails'
- fields: 'userid', 'place'
- mongoimport –db docDb –collection docs –file mongo.json
apollo-graphql server