Problem
How to implement queries in a microservice architecture?
Solution
Implement a query by defining an API Composer, which invoking the services that own the data and performs an in-memory join of the results.
Example
An API Gateway often does API composition.
Resulting context
This pattern has the following benefits:
- It a simple way to query data in a microservice architecture
This pattern has the following drawbacks:
- Some queries would result in inefficient, in-memory joins of large datasets.
Reference
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