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Practical Microservices by Umesh Ram Sharma

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Monitor front door

Traffic on the front door should be monitored carefully, and its metrics should be defined after giving proper thought to it. Front door implies any entry point exposed to the world. It should be HTTP API, or sockets or static web pages, and so on. Deploying public or partner-accessible microservices without protection is lunacy and a recipe for disaster, unless you like failing. Think about the scenario when someone decides to hit your endpoints 10x more than you planned for; sleepless nights for sure. So, monitor microservices that you publish and limit access to them.

The monitoring system should be capable of making you understand the things happening from outside the world, such as a sudden rise and fall in API calls ...

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