Streams API Part 1: map, filter, and forEach
Executive Summary: A Java stream is a one-use, lazy pipeline over a source such as a collection, array,…
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548 articles
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Microservices Architecture: Trade-offs, Boundaries, and When Not to Use Them
Microservices architecture explained: service boundaries and bounded contexts, the microservices trade-offs in both directions, and honest guidance on…
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Database Migrations at Scale: Zero-Downtime Schema Changes and Rollback Safety
Database Migrations at Scale need expand and contract steps. Learn how to change schemas with no downtime, keep…
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Disable WordPress Core Sitemaps
Learn how to disable the WordPress core sitemap generator and why it might be beneficial for your website,…
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Lambda Expressions and Functional Interfaces in Java
Executive Summary: A Java lambda implements the single abstract method of a functional interface. I cover the standard…
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Python asyncio Tutorial: async, await, and Tasks Explained
Learn how the event loop runs coroutines, how tasks and TaskGroup give you concurrency, and how to handle…
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Dead Letter Queues: Designing Failure Handling for Reliable Messaging
Dead Letter Queues hold messages that fail after retries so you can inspect, replay, or drop them. Learn…
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Creating Custom Exceptions and Best Practices
Executive Summary: Create a custom Java exception when a failure has domain meaning that callers need to handle…
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What’s New in Python 3.11: Features, Speed, and Upgrade Notes
Python 3.11 is faster, points at the exact expression that failed, and adds exception groups, TaskGroup, and tomllib.…
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Blue-Green vs Canary Deployment: Shipping Without Downtime
Blue green vs canary deployment decided: zero downtime deployment mechanics, the canary release strategy and its observation ramp,…
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Top 10 Useful Features in Pixel Phone
In the world of premium smartphones, Google Pixel disrupted the binary choice between the iPhone and Samsung...
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Clock Skew in Distributed Systems: Causes, Impact, and Clock Synchronization
Clock Skew in Distributed Systems breaks leases, caches, and event order. Learn the causes, the impact on reads,…
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The Java Exception Hierarchy: Checked, Unchecked, and Error Handling by Design
Executive Summary: Every Java exception descends from Throwable, split into Errors, checked exceptions, and unchecked RuntimeExceptions. I cover…
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Pytest Tutorial: Python Testing with Fixtures and Parametrize
Go from a first assert to fixtures, parametrized cases, temporary files, environment patching, and coverage, with complete files…
