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  • Derek Harmon thinks this is interesting:

what fields

From

Cover of Microservices for the Enterprise: Designing, Developing, and Deploying

Note

A query language service API may be appropriate for a microservice which responds to requests with its own data entities (in this example, Star Wars heroes). Where its value is less clear (at least from the authors' explanation) is when your service API performs an action. If I query a field, can it cause a change in the outside world?