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klangenk merged 1 commit into from
Sep 21, 2026
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Document the debug_logging REST endpoint #99

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10 changes: 10 additions & 0 deletions README.md
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Expand Up @@ -40,6 +40,16 @@ Where a name has an alias, either spelling works. If both are set to **different
prefixed name wins and a warning names the value used — the variable is never treated as unset,
which would otherwise let `LOOP_HOST` fall back to its default of `learning-loop.ai`.

#### Debug logging

Every node type (Detector, Trainer, Annotator, Converter) has a REST endpoint to switch its own log level between `INFO` and `DEBUG` at runtime. Send the plain text `on` or `off` with a PUT request:

- Turn debug logging on: `curl -X PUT -d "on" http://localhost/debug_logging`
- Turn debug logging off: `curl -X PUT -d "off" http://localhost/debug_logging`

The response repeats the new state. Any other body returns status code 400.
Only the node's own logger is affected; third-party loggers such as `httpx` keep their level. The setting is not persistent, a restart brings the log level back to `INFO`.

#### Testing

We use github actions for CI. Tests can also be executed locally by running
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