Luis Hernandez
Software Developer
lhernandez@nearsoft.com
It comes when an application is broken down into smaller, composable pieces which work together.
Microservices are a contrast to a traditional, "monolithic" application which is all developed all in one piece.
Account Service
Order Service
Inventory Service
...
User Service
Order
Service
Inventory
POST /selectItem
200
Purchase Item Process
Select Item
Retrieve Availability
Finish Purchase
Services communicate through messages.
Everything happens service-service
Messages
Message Broker
Channels
Publisher
Subscriber
Topics
Queues
Channel
Services
itemSelected
Select Other item
View shopping Cart
confirmedItem
Mail
User
purchaseFinished
Login
Logging
An example of a message broker.
Kafka is a distributed publish-subscribe messaging system that is designed to be fast, scalable, and durable.
Zookeeper
Kafka Broker
By Luis Hernandez
