EventIn

EventIn is an open-source event ingestion and streaming platform designed to collect, normalize, and route real-time events from diverse sources to analytics engines, data stores, and operational systems. It emphasizes pluggable connectors, flexible routing, and strong fault tolerance to support modern data architectures in domains such as finance, e-commerce, and IoT.

The system comprises an ingestion layer that buffers and authenticates incoming events, a pipeline configuration that describes transformations and routing rules, a set of connectors for source and sink systems, and a transformation engine that can apply schema enforcement, enrichment, or lightweight processing. EventIn uses a schema registry for evolving event schemas and supports backpressure and exactly-once delivery where supported by the sink.

Features include multi-source ingestion from HTTP, MQTT, sockets, and message queues; schema evolution and validation; pluggable processors; idempotent and transactional delivery; role-based access control and encryption in transit; and monitoring and observability through metrics and traces.

History of the project traces to 2020, when a community of software engineers began developing a streamlined solution for real-time data integration. It reached its first stable release in 2021, with ongoing updates adding connectors for major platforms and improvements in performance, security, and usability.

The ecosystem around EventIn includes adoption by organizations across several sectors and compatibility with popular data platforms such as Apache Kafka, Apache Pulsar, and various cloud-oriented sinks. The project is maintained by a public community and governing body, with documentation and example pipelines available in its repository.