How to delete object from array by specific value using mongoose

Question

I want to check if the id exists in the contacts array and pull the object that contains this id using mongoose. For instance, if i get the id - 5fe1c307330e711a6024697f, the first object should be deleted. i gave it a try but nothing happened. the data structure is looks like:

{
     _id: (id),
     contacts: [
         0: {
             _id: (id),
             id: '5fe1c307330e711a6024697f'
         }
         1: {
             _id: (id),
             id: '21412412412412412421421'
         }
}

And the code i've tried:

const { contactId, conversationId } = req.body;
const conversation = await Conversation.findById(conversationId);
const existingContacts = conversation.contacts;
existingContacts.map(existingContact => {
    if (existingContact.id === contactId) {
        let deletedContact = Conversation.findByIdAndUpdate(conversationId, {
            $pull: {
                  contacts: { id: contactId }
            }
        }
    }
})

turivishal · Accepted Answer · 2020-12-23 15:53:31Z

1

It is just simple, don't need to map, it will delete/pull contactId,

const { contactId, conversationId } = req.body;
let deletedContact = Conversation.findByIdAndUpdate(
    conversationId,
    {
        $pull: {
            contacts: { _id: contactId }
        }    
    }
);

answered Dec 23, 2020 at 15:53

turivishal

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