Server overloaded, nginx logs full of requests to /admin. Bots tried to log into the admin panel for 72 hours – 50,000 attempts. One admin account had a weak password. Response time: 30 minutes, hardening: 2 hours.
A custom payment method in Magento 2 is one of the more complex modules to write from scratch. It requires implementing the MethodInterface, configuration in system.xml, JS templates for checkout, and handling return webhooks from the gateway. I show the complete module structure integrating a fictional payment gateway – from authorisation through capture to refund handling.
A shop with 50,000 products – full reindex took 6 hours and often ended with a deadlock error. Product prices and availability were updating with a delay. Fix time: 1 day.
After migrating from Magento 1 to Magento 2, the shop lost 60% of organic traffic within 2 weeks. Ahrefs showed 4000 404 errors. Old product and category URLs were not being redirected. Fix time: 3 days.
Chain of Responsibility is a behavioural pattern in which a request passes through a chain of handlers – each can handle it, modify it, or pass it on. Ideal for multi-step validation, data processing pipelines and middleware. In Magento 2 this pattern is everywhere – in plugins, order pipelines and HTTP request handling. I show an implementation from scratch and three different chain variants.
Customers reported they couldn’t place orders – clicking “Place Order” reloaded the page and the cart was empty. Orders were not reaching the system. The problem only affected card payments, bank transfer worked. Resolution time: 4 hours.
The category page took 18 seconds to load with 200 products. PageSpeed score: 12/100. The problem was not the server or Varnish – it was in a module’s code that executed a separate SQL query for every product.
The shop stopped working immediately after running composer update. White screen or 500 error on the front and admin, logs full of PHP Fatal Error messages. Resolution time: 2 hours.
Warden and DDEV are the two most popular local development environment tools for Magento 2. DDEV focuses on simplicity and fast start – it works out of the box after installation. Warden gives full control over network configuration and certificates, but requires more knowledge of Docker Compose. In 2026 both are mature products. I show where each one shines and when to choose which.
Enums arrived in PHP 8.1 and are much more than a typed list of constants. Backed enums with string or int values, methods on enums, interface implementation, cases as function arguments – these are tools that eliminate an entire class of errors related to magic strings and unvalidated values. I show all the capabilities with practical examples from Magento 2.