DDChannel interface
The subset of a diagnostics channel this package relies on. Channels are taken from dd-trace itself rather than from node:diagnostics_channel so that publisher and subscriber are guaranteed to be the very same channel object the tracer's plugins subscribe to.
Signature:
export interface DDChannel Properties
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Property |
Modifiers |
Type |
Description |
|---|---|---|---|
|
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boolean |
Whether anything is listening. Checked before building a call context, so that a process with tracing disabled pays nothing per RPC beyond this read. |
Methods
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Method |
Description |
|---|---|
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Publishes an event to the subscribed plugins. Synchronous: subscribers run before this returns, which is what lets a plugin attach its span to the context the caller is about to use. |
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