One of the most important best practices for dealing with logging is to trace all the incoming requests and outgoing responses. Maybe it seems obvious to you, but I have seen a couple of applications that did not comply with that requirement. If you meet this demand, there is one consequence that occurs with microservices-based architecture. The overall number of logs in your system increases compared to monolithic applications, where there is no messaging. This, in turn, requires us to pay even more attention to logging than before. We should do our best to generate as little information as possible, even though this information can tell us much about the situation. How do we achieve this? First of all, it is good to have the same log message format across all the microservices. For example, let's consider how to print variables in the application logs. I suggest you use the JSON notation in view of the fact that, usually, messages exchanged between...
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