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20 lines
403 B
20 lines
403 B
package trace |
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import ( |
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"context" |
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"fmt" |
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"go.opentelemetry.io/otel" |
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"go.opentelemetry.io/otel/trace" |
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) |
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func TracerFromContext(ctx context.Context) (tracer trace.Tracer) { |
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if span := trace.SpanFromContext(ctx); span.SpanContext().IsValid() { |
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fmt.Println("find") |
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tracer = span.TracerProvider().Tracer(TraceName) |
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} else { |
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fmt.Println("not find") |
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tracer = otel.Tracer(TraceName) |
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} |
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return |
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}
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