Having comprehensive logs is a massive life-saver when debugging or investigating issues. Still, logging too much data can have the adverse effect of hiding the actual information you are looking for. Because of these issues, storing your log data in a structured format becomes very helpful. Also, being able to track the number of occurrences and monitor their rate of change can be quite indicative of the underlying causes. This is why we decided to include the ELK stack in our architecture.

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In this post we'll explore options for dealing with external resources when writing tests. Generally, a common solution is to use a mock instance of the resource that is not part of your system under test. It is however important to make sure that your mock, or stubbed response is a faithful copy and does not get out of date.

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