Stream Processing

Event Stream Processor

High-throughput event ingestion with staged transforms, consumer scaling, and full lifecycle visibility.

A streaming pipeline that routes events through configurable processing stages, manages consumer groups, handles dead letters, and builds rolling aggregates — all observable in real time.

Canvas APID3.jsSSETypeScriptReact
Overview

Problem Space

High-volume event streams require reliable ingestion, multi-stage processing, consumer coordination, and dead-letter handling — with visibility into lag, throughput, and processing health at every stage.

Solution

System Design

A streaming pipeline with visual stage-by-stage processing, consumer group management, DLQ handling, replay controls, and rolling window aggregation. Full lifecycle visibility from ingestion to output.

Architecture

System Components

Ingestion Layer
validation and ordered event capture
Event Log
append-only store with consumer group support
Consumer Groups
parallel processing with ack/pending tracking
Processing Pipeline
staged transforms with error routing
Dead Letter Queue
failure capture and re-drive capability
Window Aggregates
rolling metrics across configurable windows
Interactive Demo

Live Prototype

Loading prototype...

Interactive prototype — all data generated client-side with deterministic seeds.

Benchmark

Reference Performance

Reference benchmark: 4 event types, 2 consumer groups, transform + filter + aggregate stages. Measured consumer lag recovery after burst and DLQ re-drive throughput.

Throughput (evt/s): minimum 120.0, maximum 900.0, average 452.9
P95 Latency (ms): minimum 90.0, maximum 800.0, average 294.3
Error Rate: minimum 0.0, maximum 0.1, average 0.0

Deterministic seed · 60s window · Simulated workload · Local environment

Technology

Implementation Details

Canvas APID3.jsSSETypeScriptReact