A simple, configurable and expandable combined shop scraper to minimize the costs of ordering several items

Overview

combined-shop-scraper

A simple, configurable and expandable combined shop scraper to minimize the costs of ordering several items.

Features

  • Define an input file components.json with components to be scraped and the source urls
  • Find the cheapest order combination including the shipping prices
  • Get alarm prices when single components are below a defined price
  • Easily expand for new shops (scraping basic know-how required). Default basic support for notebooksbilliger, cyberport and future-x

Usage

JSON file definition

The default name of the input JSON file is components.json and must be located in the same folder as scraper.py. This is the basic structure of the file:

{
  "component1": {
    "alarm_price": 260,
    "quantity": 1,
    "urls": [
      "https://www.someshop.com/component1",
      "https://www.someshop.com/component1-alternative",
      "https://www.anothershop.com/component1-alternative"]
  },
  "component2": {
    "urls": [
      "https://www.someshop.com/component2",
      "https://www.anothershop.com/component2",
      "https://www.onemoreshop.com/component2"]
  }

The component name and at least one url are mandatory. It is possible to add several urls from the same shop for the same component if there are some alternatives for this. The quantity of each component defaults to 1, the alarm price is optional.

Execution

Just call the script scraper.py from within the folder, so the components.json file can be found. It will print an overview of the ideal order to minimize the overall cost. The program runs just once and does not keep tracking prices in the background. As usual with scraping, be gentle and fair and don't abuse this program.

Addition of new shops

If you want to add a new shop, you need to edit the file shops.py and:

  • Enter the significant part of the shop url in the method Shop._get_shops_dict and define a new class type (child of Shop)
  • Implement the methods _process_soup and get_shipping_cost for the new class. Use the existing classes as reference for the data you need to scrap.
  • Add your new urls to the input file!

License

Copyright (c) 2021 javiser combined-shop-scraper is distributed under the terms of the MIT License.

See the LICENSE for license details.

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