September 2025
Intermediate to advanced
484 pages
14h 54m
Portuguese (Portugal, Brazil)
Content preview from Construindo microsserviços orientados a eventos, 2nd Edition
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Capítulo 3. Fundamentos dos microsserviços orientados a eventos
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Um microsserviço orientado por eventos é um aplicativo como qualquer outro. Ele requer exatamente o mesmo tipo de recursos de computação, armazenamento e rede que qualquer outro aplicativo. Também requer um local para armazenar o código-fonte, ferramentas para criar e implementar o aplicativo, além de monitoramento e registro para garantir uma operação saudável. Como um aplicativo orientado por eventos, ele lê eventos de um fluxo (ou fluxos), trabalha com base nesses eventos e, em seguida, gera resultados - na forma de novos eventos, chamadas de API ou outras formas de trabalho.
No Capítulo 1, apresentei brevemente os principais benefícios dos microsserviços orientados por eventos. Neste capítulo, abordarei os fundamentos dos microsserviços orientados por eventos, explorando suas funções e responsabilidades, juntamente com os requisitos, regras e recomendações para a criação de aplicativos saudáveis.
Noções básicas de microsserviços orientados por eventos
Orientado por eventos significa que os eventos conduzem a lógica de negócios, assim como a água de um riacho faz girar a roda d'água de um moinho (consulte a Figura 3-1). Os aplicativos orientados por eventos, sejam eles micro ou macro, normalmente só funcionam quando há eventos passando por eles (ou quando um cronômetro expira - também um evento). ...
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