Raccoon

Spec sheet

Purpose

Raccoon is a high-throughput, low-latency service for ingesting clickstream and other events from mobile apps, websites, and services and publishing them to message queues.Read 9 Oct 2026 · raystack.github.io

Deployment

Raccoon can be deployed using its Docker image or on Kubernetes, and the deployment guide says a Helm chart is available.Read 9 Oct 2026 · raystack.github.io

Security

Raccoon does not provide HTTPS or authentication itself; its deployment guide recommends terminating SSL at an API gateway and handling authentication with a separate service.Read 9 Oct 2026 · raystack.github.io

License

The project is licensed under Apache 2.0.Read 9 Oct 2026 · github.com

Client libraries

The documentation provides client guides for Go, Python, JavaScript, and Java.Read 9 Oct 2026 · raystack.github.io

Delivery

Raccoon sends acknowledgments indicating whether events were consumed successfully, and its documentation describes options for delivery guarantees.Read 9 Oct 2026 · raystack.github.io

Delivery acknowledgments

The server acknowledges delivery successes and failures; the documentation says it can be augmented for zero-data-loss or at-least-once guarantees.Read 4 Oct 2026 · raystack.github.io

Destinations

Supported message queues are Apache Kafka (stable), Google Cloud Pub/Sub (alpha), and AWS Kinesis Data Streams (alpha).Read 4 Oct 2026 · raystack.github.io

Event handling

Its event-agnostic API accepts batches of events with different schemas and routes them using event metadata.Read 9 Oct 2026 · raystack.github.io

Event routing

Events are distributed to message queue topics based on event metadata.Read 4 Oct 2026 · raystack.github.io

Intended use

Documented use cases include clickstream collection, adtech streams, IoT edge systems, and event sourcing.Read 4 Oct 2026 · raystack.github.io

Message queues

Supported destinations listed in the architecture guide are Apache Kafka, Google Cloud Pub/Sub, and AWS Kinesis Data Streams; Pub/Sub and Kinesis are marked alpha there.Read 9 Oct 2026 · raystack.github.io

Monitoring

Raccoon reports metrics for server connections, publishers, resource usage, and event delivery through StatsD and Prometheus.Read 9 Oct 2026 · raystack.github.io

Performance

Persistent WebSocket connections reduce connection setup overhead, and Protocol Buffers reduce payload sizes.Read 9 Oct 2026 · raystack.github.io

Protocols and formats

Raccoon supports WebSocket, REST, and gRPC clients; WebSocket and REST support JSON and Protocol Buffers, while gRPC supports Protocol Buffers.Read 9 Oct 2026 · raystack.github.io

Security limitation

Raccoon does not provide application-level HTTPS or authentication; the deployment guide suggests using an API gateway or separate authentication service.Read 4 Oct 2026 · raystack.github.io

Use cases

The documentation lists adtech streams, clickstream collection, IoT edge systems, and event sourcing as potential use cases.Read 9 Oct 2026 · raystack.github.io

Where Specifiction places it

• Event Tracking Software#21 of 246.8