serverless/lib/utils/tokenize-exception.js

import { inspect } from 'util'
import isError from 'type/error/is.js'

const userErrorNames = new Set(['ServerlessError'])

export default (exception) => {
  if (isError(exception)) {
    return {
      title: exception.name.replace(/([A-Z])/g, ' $1').trim(),
      name: exception.name,
      stack: exception.stack,
      message: exception.message,
      isUserError: userErrorNames.has(exception.name),
      code: exception.code,
      decoratedMessage: exception.decoratedMessage,
    }
  }
  return {
    title: 'Exception',
    message: inspect(exception),
    isUserError: false,
  }
}