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dynamo-signalk-logger-plugin

v2.0.0

Published

Securely archive Signal K deltas and upload encrypted, signed log parcels to a DYNAMO storage server.

Readme

DYNAMO Logger for Signal K

Signal K Plugin CI npm License

DYNAMO Logger securely archives Signal K vessel telemetry. It records deltas as newline-delimited JSON, rotates and compresses logs, signs each parcel with the vessel identity, encrypts it for a DYNAMO storage server, and retains failed uploads for automatic retry.

DYNAMO Logger dashboard

Highlights

  • Durable, bounded upload queue with retry after timeouts and non-2xx responses.
  • RSA-SHA256 vessel signatures and per-parcel AES-256-CBC encryption.
  • Local gzip archives plus encrypted cloud parcels.
  • Full-state snapshots at rotation boundaries and incremental Signal K deltas.
  • Operational dashboard and authenticated REST status endpoints.
  • Dependency-free Node.js 20+ runtime, including Cerbo GX compatibility.
  • Official Signal K cross-platform CI indicators and node:test coverage.

Install and configure

Install DYNAMO Logger from the Signal K App Store, then configure it under Server → Plugin Config. Supply the DYNAMO server URL, choose a persistent storage directory, and set rotation/upload intervals. HTTPS is strongly recommended outside a trusted local network.

The plugin is intentionally not enabled by default: cloud transfer requires an operator-selected endpoint and an explicit privacy decision.

| Setting | Default | |---|---:| | Server URL | http://localhost:5000 | | Storage directory | plugin data directory + /storage | | Rotation interval | 300 seconds | | Upload interval | 60 seconds; zero disables upload |

See the detailed installation and configuration guides.

Operations

The webapp displays live transfer speed, active-log size, queued parcels, upload activity, recent samples, and the vessel public key. The same information is available below /plugins/dynamo-signalk-logger-plugin through /info, /publickey, /logs, /uploads, and /storage.

Runtime state is stored under the directory supplied by Signal K's app.getDataDirPath(). Failed parcels remain in upload/ until a later 2xx response acknowledges them.

Documentation

The compatible reference receiver is the DYNAMO Signal K Storage Server.

Development

npm install
npm test
npm run check
npm pack --dry-run

Contributions must preserve failed upload parcels, lifecycle restart safety, and the documented wire format. See AGENTS.md for repository-specific engineering rules.

License

Apache License 2.0. See LICENSE.