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Request-response events in user-facing workflows

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发布于 : Nov 14, 2018
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这一条目不在当前版本的技术雷达中。如果它出现在最近几期中,那么它很有可能仍然具有相关参考价值。如果这一条目出现在更早的雷达中,那么它很有可能已经不再具有相关性,我们的评估将不再适用于当下。很遗憾我们没有足够的带宽来持续评估以往的雷达内容。 了解更多
Nov 2018
暂缓 ? 谨慎行事

On a number of occasions we have seen system designs that use request-response events in user-facing workflows. In these cases, the UI is blocked or the user has to wait for a new page to load until a corresponding response message to a request message is received. The main reasons cited for designs like this are performance or a unified approach to communication between backends for synchronous and asynchronous use cases. We feel that the increased complexity—in development, testing and operations—far outweighs the benefit of having a unified approach, and we strongly suggest to use synchronous HTTP requests when synchronous communication between backend services is needed. When implemented well, communication using HTTP rarely is a bottleneck in a distributed system.

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