function

diagnostics_channel.subscribe

name: string | symbol,

): void;

Register a message handler to subscribe to this channel. This message handler will be run synchronously whenever a message is published to the channel. Any errors thrown in the message handler will trigger an 'uncaughtException'.

import diagnostics_channel from 'node:diagnostics_channel';

diagnostics_channel.subscribe('my-channel', (message, name) => {
  // Received data
});

@param name

The channel name

@param onMessage

The handler to receive channel messages

Referenced types

type ChannelListener = (message: unknown, name: string | symbol) => void