Workers - Workers tracing , write custom spans with new startActiveSpan() and span.end() runtime APIs
UpdateUnverifiedAdded Sep 24, 2026
The Workers runtime now provides built-in tracing.startActiveSpan() and span.end() APIs, allowing you to write custom spans for operations that last beyond a single callback , for example, instrumenting a stream pipeline where the span should stay open until the stream is fully consumed.
Topics: Streaming, Data integration, Observability, Developer tools
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