stem 0.1.0-alpha.4 copy "stem: ^0.1.0-alpha.4" to clipboard
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Published 35 days ago
SDKDartFlutter
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Metadata

Stem is a Dart-native background job platform with Redis Streams, retries, scheduling, observability, and security tooling.

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0.1.0-alpha.4 #

  • Introduced Durable Workflows end-to-end: auto-versioned steps, iteration- aware contexts, and durable event watchers so long-running flows replay safely and resume with persisted payloads.
  • Added a WorkflowClock abstraction (with FakeWorkflowClock) so runtimes and stores can record deterministic timestamps during testing.
  • Refined sleep/await behaviour: persisted wake timestamps now prevent re-suspending once a delay has elapsed, and saveStep refreshes run heartbeats so active workers retain ownership.
  • Updated all workflow stores to consume injected clock metadata, ensuring suspension payloads include resumeAt/deadline values without relying on DateTime.now().
  • Wired TaskOptions.unique into the runtime via the new UniqueTaskCoordinator, allowing clusters to deduplicate submissions using shared LockStores and surface duplicate metadata when a clash occurs.
  • Workers now coordinate chord callbacks through ResultBackend.claimChord, persisting callback ids and dispatch timestamps so fan-in callbacks run exactly once even after crashes or retry storms.

0.1.0-alpha.3 #

  • Split Redis/Postgres adapters and CLI into dedicated packages (stem_redis, stem_postgres, stem_cli) so the core package only exposes platform-agnostic runtime APIs.
  • Updated examples, docs, and integration guides to reference the new packages.

0.1.0-alpha.2 #

  • Replace the legacy opentelemetry dependency with dartastic_opentelemetry and update tracing/metrics integrations.
  • Add _init_test_env helper to start dockerised dependencies and export integration env vars.
  • Refresh project docs to mention the new telemetry stack and test environment workflow.
  • Bump direct dependencies (dartastic_opentelemetry 0.9.2, postgres 3.5.9, timezone 0.10.1) and align transitive packages.

0.1.0-alpha #

  • Initial version.

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Metadata

Stem is a Dart-native background job platform with Redis Streams, retries, scheduling, observability, and security tooling.

Repository (GitHub)
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Topics

#background-processing #message-queue #observability

Documentation

API reference

License

MIT (license)

Dependencies

collection, contextual, crypto, cryptography, dartastic_opentelemetry, dartastic_opentelemetry_api, glob, sqlite3, timezone, yaml

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