Testing Stream Processing with BenthosMimicking real-world data to test stream processing

The text discusses the development of OpenMeter, an application designed to help engineers collect and process large volumes of usage events for accurate billing and product use cases. A significant challenge faced during this process was generating sample data at a scale that mimics real-world scenarios. To overcome this, Benthos, a robust stream processing tool, was discovered. Benthos is highlighted as a powerful tool in the event processing domain due to its ability to ingest data from various inputs, apply custom transformations using Bloblang (a data mapping language), and send it to multiple outputs. The text provides an example of how Benthos can be used to generate sample usage events and format them into CloudEvents before sending them to the OpenMeter API.