unhandled

Adds handlers for the uncaughtException, unhandledRejection, SIGINT, and SIGTERM events.
The default behavior is to log the event to console (and the error, if applicable), then exit with code 1.

The logger, exit code, and optional handler(s) can be configured

unhandle(options)
- options.handler: ({ event, error? }) => nil | Generic handler function for unhandled events.
- options.logger: { error(...) => nil } = console | The logger to which the unhandled event errors should be logged.
- options.verbose: boolean = false | Set to true to report all actions to the logger.error()
- options.exit: boolean = false | Indicates whether unhandled events should trigger runtime exit.
- options.exception.exit: boolean | Exit on uncaught exception (supercedes options.exit).
- options.exception.handler: ({ event, error }) => nil | Custom, synchronous action to run on uncaught exception (supercedes options.handler).
- options.exception.ignore: boolean = false | Do not handled exceptions (permit default runtime behavior).
- options.rejection.exit: boolean | Exit on unhandled promise rejection (supercedes options.exit).
- options.rejection.handler: ({ event, error }) => nil | Custom, synchronous action to run on unhandled promise rejection (supercedes options.handler).
- options.rejection.ignore: boolean = false | Do not handle rejections (permit default runtime behavior).
- options.sigint.exit: boolean | Exit on SIGINT event (supercedes options.exit).
- options.sigint.handler: ({ event }) => nil | Custom, synchronous action to run on SIGINT signal (supercedes options.handler).
- options.sigint.ignore: boolean = false | Do not handle SIGINT (permit default runtime behavior).
- options.sigterm.exit: boolean | Exit on SIGTERM event (supercedes options.exit).
- options.sigterm.handler: ({ event }) => nil | Custom, synchronous action to run on SIGTERM signal (supercedes options.handler).
- options.sigterm.ignore: boolean = false` | Do not handle SIGTERM (permit default runtime behavior).