How to update the array objects if id exist otherwise insert in mongodb
Solution 1:
Alright do this to update or insert if it's not there
db.posts.update({book: [array you want to update]},
{New Array},
{upsert: true},
)
Alright do this to update or insert if it's not there
db.posts.update({book: [array you want to update]},
{New Array},
{upsert: true},
)