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Mission-Critical Mobile IAP: Handling Apple App Store & Google Play Notifications with Zero Data Loss
12+ hour, 15+ min ago (480+ words) Both platforms have shipped meaningful changes to these systems recently — new notification types, new API deprecations, and (in Apple's case) new notification categories tied to age-verification laws and alternative-payment regulation. This guide has been updated and fact-checked against current Apple…...
Architecting for Privacy: Building a 100% Offline Geofencing Engine on Android
15+ hour, 6+ min ago (1624+ words) The mid-afternoon sun was hitting the mosque floor, and the room was entirely silent, save for the rhythmic breathing of those in prayer. I had double-checked my phone before entering. Or so I thought. Halfway through the second rak'ah, a…...
Chain of Responsibility em Java: como transformamos um if de 600 linhas em um pipeline de autorização de pagamentos
15+ hour, 27+ min ago (867+ words) Padrão comportamental · Java 21 · Spring Boot O Chain of Responsibility (Corrente de Responsabilidade) é um padrão comportamental do catálogo GoF. Padrões comportamentais tratam de como objetos se comunicam e distribuem responsabilidades entre si — diferente dos criacionais (como objetos nascem) e dos…...
Week 13 of #100DaysOfCode: Completing Spring Microservices and Starting JUnit 5
17+ hour, 52+ min ago (875+ words) This week was another challenging but rewarding part of my #100DaysOfCode journey. I started the week by learning about Docker and containerized Microservices, exploring how containers differ from Virtual Machines, how Docker images and containers work, and how Docker helps package…...
Construindo um Pipeline de Processamento de Pedidos com o Padrão Chain of Responsibility em Java
19+ hour, 56+ min ago (466+ words) Sistemas que processam uma entrada por múltiplas etapas sequenciais — validação, transformação, enriquecimento, persistência — costumam cair em uma armadilha comum: todas as etapas ficam concentradas em um único método gigante, cheio de if/else aninhados, cada um responsável por uma verificação…...
Context aware Spring AI chat microservice
21+ hour, 7+ min ago (360+ words) By default, Large Language Models (LLMs) are completely stateless. Every API call you make to Google Gemini is treated like a first-time introduction. If a user says "My name is Alex" in request one, and "What is my name?" in…...
Unshackling Java Architecture: How the Builder Pattern Rescued Our Legacy System
21+ hour, 51+ min ago (1007+ words) A practical guide to the Builder Design Pattern in Java --- from legacy constructors to immutable, self-validating domain objects. In enterprise software engineering, architectural bottlenecks and design flaws tend to recur. As systems scale, challenges such as tight coupling, fragile code,…...
Project Leyden Just Killed The “Java Is Too Slow For Serverless” Argument
17+ hour, 48+ min ago (33+ words) You have sat in this meeting. Someone proposes Lambda. You say the word “Java.” The room gets quiet in that specific …...
Strategy em Java para desacoplar o cálculo de frete
22+ hour, 28+ min ago (20+ words) Autor: Emanuel Antônio Lima Rocha 1 Base fundamental Introdução O Strategy é um padrão... Tagged with architecture, backend, java, softwareengineering....
Strategy Pattern na Prática: Como Desacoplar Regras de Pagamento sem Quebrar seu Sistema
23+ hour, 58+ min ago (398+ words) O Strategy é um Design Pattern comportamental, catalogado originalmente pela Gang of Four (GoF). Padrões comportamentais tratam da comunicação e da distribuição de responsabilidades entre objetos — e o Strategy resolve especificamente um problema muito comum: como permitir que um algoritmo…...