node.js mongoose find() method usage with key value in object

Question

I'd like to find data from mongodb using find() function Here is my schema

  const newcontractSchema = mongoose.Schema({
  creator: {
    type: mongoose.Schema.Types.ObjectId,
    ref: 'User',
    required: false,
    index: true,
  },
  status: {type: String, required: false, default: 'init'},
  a_status: {type: String, required: false, default: 'pending'},

  contractInfo: {
    startDate: {type: Date},
    endDate: {type: Date},
    expectedUsage: {type: Number, default: 2000},
    provider: {type: Object},
    rate: {type: Number},
    term: {type: Number},
    userid: {type: String}


}, {timestamps: true});

and what I tried is

Newcontract.find({contractInfo: {userid: {$eq: req.body.userid}}})

But I couldn't fetch data based on this userid in contractInfo object

How to do it?

Thanks

Answer 1

You are not querying correctly.

You need something like this:

db.collection.find({
  "contractInfo.userid": "yourid"
})

Mongo playground example here

In mongoose will be very similar:

Newcontract.findOne({
  "contractInfo.userid": req.body.id
})

Note that you can use findOne() to get only one object if you want.