mongoose-data-faker/a.js

Generate random fake data with your mongoose schema

db.collection.aggregate([
  {
    $project: {
      staffId: 1,
      category: 1,
      createdAt: {
        $dateToParts: {
          date: "$createdAt",
        },
      },
    },
  },
  {
    $match: {
      category: "trend",
      createdAt: {
        $regex: "2020-08-13",
      },
    },
  },
  {
    $group: {
      _id: null,
      staffIds: {
        $push: "$staffId",
      },
    },
  },
]);