在两个微服务之间共享域模型的最佳实践 [英] Best practice to share domain model between two microservices

问题描述

是否有关于如何在两个微服务之间共享域模型的最佳实践或指南?

Are there any best practices or guidelines on how to share the domain model between two micro-services?

我有一个微服务 (1)，它提供端点以与所有 CRUD 的资源(例如，Order)和另一个微服务(2)进行交互，后者在资源(Order)上执行特定的非 CRUD 任务.微服务(2)几乎需要所有的订单属性来执行它的操作.在这种情况下，创建域模型的公共共享库并在两个服务之间共享是否有意义?我可以在技术上将 1 和 2 组合在一起，但微服务 (2) 需要支持可扩展性，因为它非常占用内存和 CPU.

I have a micro-service (1) which provides end points to interact with a resource (e.g, Order) all CRUD and the other micro-service (2) which performs a specific non CRUD task on the resource (Order). The micro-service (2) almost needs all the order attributes to perform its operation. In this case, does it make sense to create a common shared lib of the domain model and share between the two services? I could technically combine 1 and 2 together but the micro-service (2) needs to support scalability as it is quite memory and CPU intensive.

推荐答案

据我所知，这两个服务似乎需要共享相同的数据，而您正在考虑共享用于读取的库/修改此数据.

As far as I can see it seems that these two services need to share the same data and you are thinking to share also the library that is used to read/modify this data.

它们似乎属于同一个有界上下文"，因此最好将它们视为一种独特的服务.

They seem to belong to the same "bounded context" and so it would be ideal to consider them as a unique service.

如果你真的不能把他们的数据和他们的逻辑分开，最好把它们放在一起.

If you really can't separate their data and their logic, it would be better to keep them together.

我不认为同一个微服务中的组件必须遵循相同的部署模式:它们将是同一个微服务，由同一个团队管理，始终部署在一起，共享同一个源存储库，但它们将被部署一种不同的策略，因为只有第二个组件需要高可扩展性.

I do not think that components in the same microservices have to follow the same deployment pattern: they will be the same microservice, managed by the same team, deployed always together, sharing the same source repository, but they will be deployed with a different strategy because only the second component needs high scalability.

同样的有界上下文，同样的服务，但不同的组件.

So same bounded context, same service, but different components.

我没有很多经验，所以把这当作我个人的想法.

I do not have a lot of experience and so take this as my personal thought.

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