Sputnik

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Table of Contents

• Database Schema

Database Schema

The database stores multiple types of items:

• Grocery Item
• Store
• Store Location

Grocery Item

An item in the grocery store.

Notes:

• Only interday prices are tracked, no need for intraday
• Pretty much everything is optional (if the value is 0, don’t include it)
• unit is EA (each), PK (pack), OZ (ounces), LB (pounds), KG (kilos). If unit is PK, then unit_size default is likely not 1
• All nutrition facts in grams. May need to convert oz to grams to figure out number of servings
• IDs are for internal database tracking

Example:

{
  "id": 0,
  "store": 0,
  "barcode": "0076394622502",
  "barcode_type": "UPC",
  "name": "Alfaro's Astesano White Bakery Bread",
  "price": 3.49,
  "unit": "EA",
  "unit_size": 1,
  "weight": 20,
  "prices": [
    {
      "store": 1,
      "date": "2021/01/01",
      "price": 3.49
    }
  ],
  "images": [
    {
      "type": "base64/png",
      "data": "data:image/png;base64,..."
    },
    {
      "type": "base64/jpeg",
      "data": "data:image/jpeg;base64,..."
    },
    {
      "type": "uri",
      "data": "https://i.imgur.com/2dn06CW.png"
    }
  ],
  "nutrition": {
    "serving_size": 38,
    "servings": 15,
    "calories": 110,
    "fat": {
      "total": 1.5,
      "saturated": 0,
      "trans": 0,
      "poly": 0.5, // Polyunsaturated Fat
      "mono": 0 // Monounsaturated Fat
    },
    "cholesterol": 0,
    "sodium": 0.19,
    "carbs": {
      "total": 20,
      "fiber": 1,
      "sugar": 2
    },
    "protein": 3,
    "vitamin": {
      "a": 0,
      "b": 0,
      "c": 0,
      "d": 0,
      "k": 0
    },
    "other": {
      "calcium": 0.05,
      "iron": 0.0011,
      "potassium": 0
    }
  }
}

Store

A unique store chain, that uses the same internal database of grocery items.

Example:

{
  "id": 0,
  "name": "Trader Joe's",
  "locations": [0]
}

Store Location

A unique store location, representing a physical location of a store.

Example:

{
  "id": 0,
  "store": 0,
  "address": {
    "street": "451 E Avendia De Los Arboles", // Optional
    "city": "Thousand Oaks",
    "state": "CA",
    "zip": "91360", // Optional
    "longitude": 34.218881, // Optional
    "latitude": -118.869229 // Optional
  },
  "meta": {
    "internal_id": "196" // Optional
  }
}