Building a GenStage Pipeline for SQS Message Ingestion

The article explains the process of using GenStage, an Elixir library, to create a scalable data processing pipeline specifically for consuming messages from an AWS SQS queue. It introduces the concept of backpressure, which regulates the rate of incoming messages based on the capacity of the processing system to avoid overload. The author provides a detailed description of how to design an SQS ingestion pipeline with different stages such as producers, producer-consumers, and consumers. It covers the implementation of the supervision tree to manage these processes and ensure effective message processing and deduplication. There is also a reference to using other libraries like Broadway and Flow for parallel processing built on top of GenStage.