Find listings with lowest nightly prices

Find the listings with listing_url, name, address and amenities,price,review scores in the listingsAndReviews collection that have the lowest nightly prices.

Structure of 'listingsAndReviews' collection:

 {
    _id: '10059872',
    listing_url: 'https://www.airbnb.com/rooms/10059872',
    name: 'Soho Cozy, Spacious and Convenient',
    summary: 'Clean, fully furnish, Spacious 1 bedroom flat just off the escalator in Mid Levels. 2 minutes From Soho Bar and Restaurants. Located in a quiet alley 1 minute from Sun Yat Sen',
    space: '',
    description: 'Clean, fully furnish, Spacious 1 bedroom flat just off the escalator in Mid Levels. 2 minutes From Soho Bar and Restaurants. Located in a quiet alley 1 minute from Sun Yat Sen',
    neighborhood_overview: '',
    notes: '',
    transit: '',
    access: '',
    interaction: '',
    house_rules: '',
    property_type: 'Apartment',
    room_type: 'Entire home/apt',
    bed_type: 'Real Bed',
    minimum_nights: '4',
    maximum_nights: '20',
    cancellation_policy: 'flexible',
    last_scraped: ISODate("2019-03-11T04:00:00.000Z"),
    calendar_last_scraped: ISODate("2019-03-11T04:00:00.000Z"),
    first_review: ISODate("2015-12-19T05:00:00.000Z"),
    last_review: ISODate("2018-03-27T04:00:00.000Z"),
    accommodates: 3,
    bedrooms: 1,
    beds: 2,
    number_of_reviews: 3,
    bathrooms: Decimal128("1.0"),
    amenities: [
      'Air conditioning',
      'Kitchen',
      'Smoking allowed',
      'Doorman',
      'Elevator',
      'Heating',
      'Family/kid friendly',
      'Essentials',
      '24-hour check-in',
      'translation missing: en.hosting_amenity_50'
    ],
    price: Decimal128("699.00"),
    weekly_price: Decimal128("5000.00"),
    extra_people: Decimal128("0.00"),
    guests_included: Decimal128("1"),
    images: {
      thumbnail_url: '',
      medium_url: '',
      picture_url: 'https://a0.muscache.com/im/pictures/4533a1dc-6fd8-4167-938d-391c6eebbc19.jpg?aki_policy=large',
      xl_picture_url: ''
    },
    host: {
      host_id: '51624384',
      host_url: 'https://www.airbnb.com/users/show/51624384',
      host_name: 'Giovanni',
      host_location: 'Hong Kong, Hong Kong',
      host_about: '',
      host_thumbnail_url: 'https://a0.muscache.com/im/pictures/264b82a7-756f-4da8-b607-dc9759e2a10f.jpg?aki_policy=profile_small',
      host_picture_url: 'https://a0.muscache.com/im/pictures/264b82a7-756f-4da8-b607-dc9759e2a10f.jpg?aki_policy=profile_x_medium',
      host_neighbourhood: 'Soho',
      host_is_superhost: false,
      host_has_profile_pic: true,
      host_identity_verified: false,
      host_listings_count: 1,
      host_total_listings_count: 1,
      host_verifications: [ 'email', 'phone', 'reviews', 'jumio', 'government_id' ]
    },
    address: {
      street: 'Hong Kong, Hong Kong Island, Hong Kong',
      suburb: 'Central & Western District',
      government_area: 'Central & Western',
      market: 'Hong Kong',
      country: 'Hong Kong',
      country_code: 'HK',
      location: {
        type: 'Point',
        coordinates: [ 114.15027, 22.28158 ],
        is_location_exact: true
      }
    },
    availability: {
      availability_30: 0,
      availability_60: 0,
      availability_90: 0,
      availability_365: 0
    },
    review_scores: {
      review_scores_accuracy: 10,
      review_scores_cleanliness: 10,
      review_scores_checkin: 10,
      review_scores_communication: 10,
      review_scores_location: 10,
      review_scores_value: 8,
      review_scores_rating: 100
    },
    reviews: [
      {
        _id: '56904633',
        date: ISODate("2015-12-19T05:00:00.000Z"),
        listing_id: '10059872',
        reviewer_id: '5302612',
        reviewer_name: 'Octavio',
        comments: 'The host canceled this reservation 11 days before arrival. This is an automated posting.'
      },
      {
        _id: '223175530',
        date: ISODate("2018-01-01T05:00:00.000Z"),
        listing_id: '10059872',
        reviewer_id: '48436743',
        reviewer_name: 'Ross',
        comments: 'Giovanni was very helpful and responsive to my questions. This is a great apartment that is very convenient for exploring Hong Kong.'
      },

      {
        _id: '247251577',
        date: ISODate("2018-03-27T04:00:00.000Z"),
        listing_id: '10059872',
        reviewer_id: '111288273',
        reviewer_name: 'Christian',
        comments: 'The host canceled this reservation 8 days before arrival. This is an automated posting.'
      }
    ]
  },
.......

Query:

db.listingsAndReviews.find(
{ "price": { "$exists": true } },
{ "listing_url": 1, "name": 1, "address": 1, "amenities": 1, "price": 1, "review_scores": 1 }
).sort({ "price": 1 }).limit(1)

Output:

{
    _id: '14758068',
listing_url: 'https://www.airbnb.com/rooms/14758068',
name: 'Room on spacious appartment',
amenities: [
      'TV',
      'Wifi',
      'Kitchen',
      'Elevator',
      'Free street parking',
      'Washer',
      'Hangers',
      'Laptop friendly workspace',
      'translation missing: en.hosting_amenity_49',
      'translation missing: en.hosting_amenity_50',
      'Private entrance',
      'Hot water',
      'Microwave',
      'Coffee maker',
      'Refrigerator',
      'Dishwasher',
      'Dishes and silverware',
      'Cooking basics',
      'Oven',
      'Stove',
      'Patio or balcony',
      'Garden or backyard',
      'Long term stays allowed',
      'Wide hallway clearance',
      'Wide doorway',
      'Flat path to front door',
      'Well-lit path to entrance',
      'Disabled parking spot',
      'Wide doorway',
      'Wide clearance to bed',
      'Accessible-height bed',
      'Step-free access',
      'Wide doorway',
      'Accessible-height toilet',
      'Wide entryway',
      'Host greets you',
      'Handheld shower head'
    ],
price: Decimal128("9.00"),
address: {
street: 'Valbom, Porto, Portugal',
suburb: '',
government_area: 'Gondomar (São Cosme), Valbom e Jovim',
market: 'Porto',
country: 'Portugal',
country_code: 'PT',
location: {
type: 'Point',
coordinates: [ -8.557, 41.14586 ],
is_location_exact: true
      }
    },
review_scores: {
review_scores_accuracy: 8,
review_scores_cleanliness: 10,
review_scores_checkin: 10,
review_scores_communication: 10,
review_scores_location: 8,
review_scores_value: 10,
review_scores_rating: 100
    }
  }

Explanation:

The said query in MongoDB that retrieves documents with the listing_url, name, address, amenities, price, and review_scores in the listingsAndReviews collection that have a lowest nightly prices.

The find() method finds the listings with the lowest nightly prices.

The sort() method sorts the result set in ascending order on the price field limit the results to one using the limit() method.

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