onError listener does not emit error name & stack

[phips28]

While debugging the https://github.com/timgit/pg-boss/issues/274 issue, I found out that the this.boss.on('error', (error) => {.. listener does not show the full error (message, stack).

Listener:

this.boss.on('error', (error) => {
    console.error('PgBossQueue: on error', error);
});

Error Log:

PgBossQueue: on error {
  length: 123,
  name: 'error',
  severity: 'ERROR',
  code: '42601',
  detail: undefined,
  hint: undefined,
  position: undefined,
  internalPosition: undefined,
  internalQuery: undefined,
  where: undefined,
  schema: undefined,
  table: undefined,
  column: undefined,
  dataType: undefined,
  constraint: undefined,
  file: 'postgres.c',
  line: '1400',
  routine: 'exec_parse_message',
  queue: 'xxxx',
  worker: 'c8a14fd2-0e80-4190-82e5-8946fb56297e'
}

---

I then printed the error in the onError function in manager.js, and that showed the full error. The problem I see: an Error object has no iterator: TypeError: Found non-callable @@iterator (But this error is not visible with current spread usage in emit, only when you add it to the console.log(...error)) -> So I added message and stack directly.

    const onError = error => {
+      console.log('onError', error);

-      this.emit(events.error, { ...error, queue: name, worker: id })
+      this.emit(events.error, { ...error, message: error.message, stack: error.stack, queue: name, worker: id })
    }