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Aggregator Pattern

Anjali Sharma answered on January 3, 2023 Popularity 6/10 Helpfulness 1/10

answer Aggregator Pattern

Aggregator Pattern

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Aggregator in the computing world refers to a website or program that collects related items of data and displays them.
So, even in Microservices patterns, Aggregator is a basic web page which invokes various services to get the required information or achieve the required functionality. 

Also, since the source of output gets divided on breaking the monolithic architecture to microservices, this pattern proves to be beneficial when you need an output by combining data from multiple services. 
So, if we have two services each having their own database, then an aggregator having a unique transaction ID, would collect the data from each individual microservice, apply the business logic and finally publish it as a REST endpoint. 
Later on, the data collected can be consumed by the respective services which require that collected data.

The Aggregate Design Pattern is based on the DRY principle. 
Based on this principle, you can abstract the logic into a composite microservices and aggregate that particular business logic into one service.

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Contributed on Jan 03 2023

Anjali Sharma

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