exstream

Learn by running

See the pipeline make decisions.

Examples are guided browser labs, not a wall of snippets. Each lesson starts with a problem, runs real Exstream code, and makes flow, buffering, and output visible.

Open the playground Or run the browser CSV guide →
Learning path runs client-side
  1. 01Create a sourcepull an infinite async generator
  2. 02Transform recordsmap, filter, batch, and inspect output
  3. 03Enrich concurrentlybound work and choose output order
  4. 04Control backpressureslow the sink and watch demand
  5. 05Fork the flowcoordinate reliable destinations
  6. 06Handle bad recordsroute retries and dead letters
  7. 07Merge sourcesparallel inputs and output order
  8. 08Stream a remote CSVWeb Streams, pressure, and cancellation

Every lesson combines explanation, editable code, Run / Stop / Reset, and live output.