ignacio-chiazzo

# Gem
module PricingEngine
  class Engine
    #... 
    # Calculates the price for variants given the buyer context.
    #
    # @param context [Schema::BuyerContext] the buyer context
    #
    # @return [Array<PricingEngine::Schema::Price>] An array of prices for the context passed.
    def calculate_prices_for_variants(context)

ignacio-chiazzo

PriceCalculation Example Gist: https://gist.github.com/ignacio-chiazzo/47f19baf6591525da83620647fb0f862

Pricing Schema Gist https://gist.github.com/ignacio-chiazzo/83898d53528a502e217463bbb3dd5c91

Consumer 1 Logic https://gist.github.com/ignacio-chiazzo/677bb5797160c2d06659747f36240900

Consumer 2 Logic  https://gist.github.com/ignacio-chiazzo/7e51ff0bb4b6d1a0fb445181453e3d47

Price Calculation Gem https://gist.github.com/ignacio-chiazzo/6da5081ae978840ebf2b64c358a432ff

ignacio-chiazzo

`GET /products?limit=20&page=1`    # -> Returns the **first Page**

`GET /products?limit=20&page=2`    # -> Returns the **second Page**

`GET /products?limit=20&page=3`    # -> Returns the **third Page**

`....`
`....`

ignacio-chiazzo

SELECT * 
FROM products
ORDER BY Id
LIMIT 20
OFFSET 200;

ignacio-chiazzo

SELECT * 
FROM products
ORDER BY Id
LIMIT 20
OFFSET 200;

ignacio-chiazzo

GET https://{shop}.myshopify.com/admin/api/products.json?limit=3  # page 1

#... Response Header 
Link: "<https://{shop}.myshopify.com/admin/api/2019-07/products.json?page_info=hijgklmn&limit=3>; rel=next"
#...


GET https://{shop}.myshopify.com/admin/api/2019-07/products.json?page_info=hijgklmn&limit=3   # page 2

ignacio-chiazzo

https://api.stripe.com/v1/charges?limit=3  # page 1
https://api.stripe.com/v1/charges?starting_after=prod_GscR7tGwKBwJ6C&limit=3 # page 2
https://api.stripe.com/v1/charges?starting_after=prod_GscR7tAbCDewJ1&limit=3 # page 3

ignacio-chiazzo

SELECT *
FROM products
WHERE ID > <since_id_param>
ORDER BY ID ASC
LIMIT 100

ignacio-chiazzo

type __Schema {
  types: [__Type!]!
  queryType: __Type!
  mutationType: __Type
  subscriptionType: __Type
  directives: [__Directive!]!
}

ignacio-chiazzo

// Testing Gist
var heapSort = function(arr) {
  var n = arr.length;
  for(var i = Math.floor(n/2) - 1; i >= 0; i--)
    heapify(arr, n, i);

  for(var i = n - 1; i >= 0; i--) {
    swap(arr, 0, i);
    heapify(arr, i, 0);
  }