mongodb find id in array code example

Example 1: mongo console find by id

db.collection.find({_id:ObjectId('5e208c18d598b806c869ca37')}).pretty()

Example 2: find object in array mongodb

db.users.findOne({"_id": id},{awards: {$elemMatch: {award:'Turing Award', year:1977}}})

Example 3: mongodb find element in array

db.yourCollection.find( { array: "element" } )

Example 4: mongodb find array with element

// Finds all documents that have a property named "tags"
// which has at least one array element matching "red"
db.inventory.find( { tags: "red" } )

Example 5: where id and id in mongodb

const p_id = patient_id;
    let fetchingReports = await Reports.aggregate([
      ...(p_id
        ? [
            {
              $match: {
                createdBy: mongoose.Types.ObjectId(id),
                patient_id: p_id,
              },
            },
          ]
        : [
            {
              $match: {
                createdBy: mongoose.Types.ObjectId(id),
              },
            },