CODEWITHSUNDEEP
node.jsmongodbmongoosenosql
nasserahmed009
nasserahmed009

Reputation: 146

Updating multiple documents in mongoose at once

I have an array of User documents each user has followers attribute which is a number, I just want to increment this attribute by 1 and then update all those user documents in the DB at once.

More details:

In the request I have an array of user ids, I query with those ids to get an array of user documents.

const users = await User.find({"_id": {$in: req.body.ids}});

each user document has an attribute called followers which is a number. 

const userSchema = new mongoose.Schema({

  // other attributes...........,

  followers: {
    type: Number,
    default: 0
  }
});

I want to increment the number of followers in each user in the users array and update the DB at once without sending a request to update each user separately, Is this even possible?

Thanks in advance

Upvotes: 3

Views: 706

Answers (1)

mickl
mickl

Reputation: 49985

You can use $inc and run updateMany:

await User.updateMany({"_id": {$in: req.body.ids}}, { $inc: { followers: 1 } });

Upvotes: 3

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