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StockChecker

MediaMarkt & Saturn Stock Availability Checker based on Selenium with Chrome for GraphQL Cloudflare bypass

Introduction

This is a hobby project to gain a fighting chance against shopping bots to get hold of a RTX series 3000 card or Ryzen 5000 CPUs.
Saturn is currently not supported, but due to the same frontend, this can be achieved with minor code changes.

Installation

  • Install the latest .NET Core Runtime 3.1 for your OS from https://dotnet.microsoft.com/download/dotnet-core/3.1
  • Google Chrome needs to be installed on your system with a minimum version of 87.0.4280.88.
  • For newer Chrome builds you might have to replace ChromeDriver in the root dir.
  • Download and extract the latest StockChecker binaries from the release section.
  • Adjust your settings in the config.ini and execute the StockChecker binary.
  • Chrome will initially create and reuse a Chrome Profile located inside the ChromeProfile folder in the root directory.
  • On the first run you will have to consent and accept all cookies and solve a cloudflare captcha if requested.
  • It is recommended to login to your MediaMarkt/Saturn Account to avoid bot detection and ip ban on the GraphQL api.

Configuration

Example config.ini

[general]
# refresh frequency in minutes - # default is 10 minutes
frequency = 10
# start a headless chrome instance when set to 1
headless = 0

[collections]
# set to 1 to fetch all key-matching RTX cards from www.mediamarkt.de/de/campaign/grafikkarten-nvidia-geforce-rtx-30.html
NVIDIA_RTX_3060_Ti = 0
NVIDIA_RTX_3070 = 0
NVIDIA_RTX_3080 = 0
NVIDIA_RTX_3090 = 0
# example of a custom collection
#RTX3080 = [2681859,2681861,2681869,2681871,2683243,2683227,2683229,2684238,2684241,2683937,2683942,2689452,2689453,2689451,2691438,2691443,2688473]
# product ids to ignore 
#ignore = [2681859, 2681861]

Notes

  • For RTX 30 Cards I recommend to reuse the preset collections from
    www.mediamarkt.de/de/campaign/grafikkarten-nvidia-geforce-rtx-30.html
    Setting NVIDIA_RTX_3080 = 1 will include all 3080 cards listed on the rtx 30 campaign page.
    The collection key name is derived dynamically from a GraphqlBreadcrumb field by replacing spaces with underscores:
    {"__typename":"GraphqlBreadcrumb","name":"NVIDIA RTX 3060 Ti"}
    That way it will support upcoming collections like the 3080 Ti.

  • If you only want to check for OC cards, you can exclude non-oc cards by adding their ID to the ignore collection.
    Product IDs can be found at the end of each product URL.

  • With the frequency setting you can adjust the refetch time in minutes to refresh availabilities.
    When a card is available a beep sound melody is played and a new chrome tab pointing to the product will be opened.
    You will only be notified once since available cards will be added to the ignore list.

  • After preparing cookies and logins you can run a headless chrome instance with headless = 1
    This feature has not been tested yet!

Console commands

  • q | quit | exit
    Gracefully exit Chrome
  • ignore <id1, ..id#>
    ignore ids and update config
  • reload
    reload config - not implemented yet
  • f | refetch
    manually refetch product availabilities

Known Bugs

  • The very first api call to fetch availabilities will fail and ask to solve a captcha.
    Just ignore this and wait for the second api request
  • The cf captcha injected by an iframe does not work

License

This Project is licensed under The Unlicense.

The binary files of ChromeDriver deployed by jsakamoto/nupkg-selenium-webdriver-chromedriver are licensed under the BSD-3-Clause.