Serverless with AWS Lambda and API Gateway: not a beginner tutorial

Cloud AWS Serverless
I have been working intensively on building serverless applications with AWS over the past few years. Some projects used serverless architecture with lambda in its core, some used lambda functions only for small parts of the system. Below I want to share a couple of lessons learned and describe bottlenecks, which you may face while developing even a simple system. This is not a tutorial for absolu

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