Lambda pinball

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Published: Nov 20, 2019
Nov 2019

We've been building serverless architectures on our projects for a couple of years now, and we've noticed that it's quite easy to fall into the trap of building a distributed monolith. Lambda pinball architectures characteristically lose sight of important domain logic in the tangled web of lambdas, buckets and queues as requests bounce around increasingly complex graphs of cloud services. Typically they're hard to test as units, and the application needs must be tested as an integrated whole. One pattern we can use to avoid these pinball architectures is to draw a distinction between public and published interfaces and apply good old domain boundaries with published interfaces between them.