microservicesspring-cloud
Does the internal service call need to go through the API gateway, such as zuul?
I have used eureka as service discovery. If all internal services call each other go through the API gateway, I can't use ribbon-backed RestTemplate or feign client any more.
Is it necessary or some option?
Solution
No. Zuul is a gatekeeper. You need it to pass requests from the UI. Internal communication should not pass through a gateway.
Just for reference:
https://medium.com/microservices-in-practice/service-mesh-vs-api-gateway-a6d814b9bf56
You can also find more info in Ken Finnigan's book "Enterprise java microservices" (https://www.manning.com/books/enterprise-java-microservices)
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