response_parser.py

# This function parses amazon response
def parse_response(response):

    if hasattr(response, 'search_result'):
        items = response.search_result.items
    else:
        items = response
    res_items = []
    
    if items is not None:

        for item_0 in items:
            it_parsed = {}

            if item_0 is not None:

                # if contains an image
                if item_0.images.primary.large is not None:
                    it_parsed["image"] = item_0.images.primary.large.url

                # if contains a description
                if item_0.item_info.features is not None and item_0.item_info.features.display_values is not None:
                    desc = ""
                    tmp = item_0.item_info.features.display_values
                    length = 0
                    for el in tmp:
                        if length < 3:
                            desc += el
                            length += 1
                        else:
                            break
                    if len(desc) > 24:
                        it_parsed["description"] = desc[0:24]

                # if contains price and/or offer price
                if item_0.offers is not None and item_0.offers.listings[0] and item_0.offers.listings[
                    0].price is not None and item_0.offers.listings[0].price.savings is not None:
                    if item_0.offers.listings[0].is_buy_box_winner is not None:
                        it_parsed["off"] = item_0.offers.listings[0].is_buy_box_winner

                    it_parsed["savings"] = item_0.offers.listings[0].price.savings.amount
                    op = float(item_0.offers.listings[0].price.savings.amount) + float(
                        item_0.offers.listings[0].price.amount)
                    it_parsed["original_price"] = '%.2f' % (op)

                # get item id
                if item_0.asin is not None:
                    it_parsed["id"] = item_0.asin

                # get item amazon url
                if item_0.detail_page_url is not None:
                    it_parsed["url"] = item_0.detail_page_url

                # get item title
                if (
                        item_0.item_info is not None
                        and item_0.item_info.title is not None
                        and item_0.item_info.title.display_value is not None
                ):
                    it_parsed["title"] = item_0.item_info.title.display_value

                # get item price
                if (
                        item_0.offers is not None
                        and item_0.offers.listings is not None
                        and item_0.offers.listings[0].price is not None
                        and item_0.offers.listings[0].price.display_amount is not None
                ):
                    it_parsed["price"] = f'{item_0.offers.listings[0].price.display_amount}'

                # get savings percentage
                if (
                        item_0.offers is not None
                        and item_0.offers.listings is not None
                        and item_0.offers.listings[0].price is not None
                        and item_0.offers.listings[0].price.savings is not None
                        and item_0.offers.listings[0].price.savings.percentage is not None
                ):
                    it_parsed["percentage"] = f'{item_0.offers.listings[0].price.savings.percentage}'
    

            res_items.append(it_parsed)
        return res_items