LogOptions

Defined in: bindings/node/dist/index.d.ts:1030

Specify options for the logger

Properties

level?

optional level?: LogLevel

Defined in: bindings/node/dist/index.d.ts:1040

Filter logs by level. Also the level exported to OTLP when otelEndpoint is set (the appender ships events at this level).

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otelEndpoint?

optional otelEndpoint?: string

Defined in: bindings/node/dist/index.d.ts:1052

OTLP endpoint (e.g. “http://collector:4317”). When set, spans AND logs are exported via OTLP to this endpoint. A downstream OpenTelemetry Collector derives metrics from the spans and forwards the correlated logs.

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otelSampleRatio?

optional otelSampleRatio?: number

Defined in: bindings/node/dist/index.d.ts:1056

Fraction of root spans sampled, from 0 to 1.

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otelServiceName?

optional otelServiceName?: string

Defined in: bindings/node/dist/index.d.ts:1054

Service name attached to exported telemetry.

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resourceAttributes?

optional resourceAttributes?: Record<string, string>

Defined in: bindings/node/dist/index.d.ts:1062

Resource attributes attached to all exported spans (e.g. { “service.instance.id”: “herald-7”, “deployment.environment”: “prod” }). Use these to attribute telemetry to its source.

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stdoutLevel?

optional stdoutLevel?: LogLevel

Defined in: bindings/node/dist/index.d.ts:1046

Level for the stdout console layer only. Defaults to level. Set to warn to quiet stdout below the OTLP export level — e.g. so a log shipper does not duplicate logs already exported via OTLP, while OTLP still receives level.

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structured?

optional structured?: boolean

Defined in: bindings/node/dist/index.d.ts:1035

enable structured JSON logging to stdout.Useful for third-party log viewers an option so that it does not require being specified in js object.