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TracingChannel.subscribe method | Node.js diagnostics_channel module | Bun

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method

diagnostics_channel.TracingChannel.subscribesubscribe(subscribers: TracingChannelSubscribersContextType>): void;Helper to subscribe a collection of functions to the corresponding channels. This is the same as calling channel.subscribe(onMessage) on each channel individually.

import diagnostics_channel from 'node:diagnostics_channel'; const channels = diagnostics_channel.tracingChannel('my-channel'); channels.subscribe({ start(message) { // Handle start message }, end(message) { // Handle end message }, asyncStart(message) { // Handle asyncStart message }, asyncEnd(message) { // Handle asyncEnd message }, error(message) { // Handle error message }, }); @param subscribersSet of TracingChannel Channels subscribers

Referenced typesinterface TracingChannelSubscribersContextType extends object>asyncEnd: (message: ContextType & { error: unknown; result: unknown }) => voidasyncStart: (message: ContextType & { error: unknown; result: unknown }) => voidend: (message: ContextType & { error: unknown; result: unknown }) => voiderror: (message: ContextType & { error: unknown }) => voidstart: (message: ContextType) => void

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