Node_Microservices_-_The_Definitive_Guide.pdf

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Node Microservices The Deﬁnitive Guide @ivanjov96 https://ivanjov.com

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Ivan Jovanovic Senior software engineer @ nearForm https://ivanjov.com @ivanjov96 Founder @ JS Remotely

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What are Microservices?

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Microservices is an architectural style that structures an application as a collection of loosely coupled services

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App DB

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App App App

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Event bus

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Event bus allows publish-subscribe-style communication between components without requiring the components to explicitly register with one another

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Microservice principles • Lightweight protocol between services • Small services, one job per service • Service independence • Easier to understand, develop and test • Speeds up development • Enables continues delivery and deployment

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Why Node.js? • Small and lightweight! • No boilerplate code • Non-blocking I/O • Speed! • Freedom

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Tools • Docker - containers • Kubernetes - container orchestration • Kafka - messaging • Elastic Stack - logging

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Docker is a tool designed to make it easier to create, deploy, and run applications using containers

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Containers allow developer to package up an application with all of the parts it needs, such as libraries and other dependencies, and ship it all out as one package

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Dockerﬁle

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Kubernetes is an open-source system for automating deployment, scaling and management of containerized applications

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Service communication

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Service communication • Synchronous - HTTP/REST API • Asynchronous - Messaging

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Producer

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Consumer

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Conclusion • Use NodeJS! • Use Async communication • Use containers • Use Kubernetes for container orchestration • Log everything to ElasticSearch

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Thank you Blog https://ivanjov.com Twitter @ivanjov96