@loglayer/plugin-opentelemetry/dist/index.js

OpenTelemetry plugin for LogLayer that adds trace context to logs.

// src/index.ts
import { context, isSpanContextValid, trace } from "@opentelemetry/api";
function openTelemetryPlugin(config = {}) {
  const traceIdField = config.traceIdFieldName || "trace_id";
  const spanIdField = config.spanIdFieldName || "span_id";
  const traceFlagsField = config.traceFlagsFieldName || "trace_flags";
  const addTraceContext = (data) => {
    const span = trace.getSpan(context.active());
    if (span) {
      const spanContext = span.spanContext();
      if (isSpanContextValid(spanContext)) {
        const fields = {
          [traceIdField]: spanContext.traceId,
          [spanIdField]: spanContext.spanId,
          [traceFlagsField]: `0${spanContext.traceFlags.toString(16)}`
        };
        if (config.traceFieldName) {
          const traceData = {
            [config.traceFieldName]: fields
          };
          if (data) {
            return {
              ...data,
              ...traceData
            };
          }
          return traceData;
        }
        if (data) {
          return {
            ...data,
            ...fields
          };
        }
        return fields;
      }
    }
    return data || {};
  };
  return {
    id: config.id,
    disabled: config.disabled,
    onBeforeDataOut: ({ data }) => addTraceContext(data)
  };
}
export {
  openTelemetryPlugin
};
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