How can I use Rails internal error reporting to swallow the error in production but not in test or development

Question

If I use:

Rails.error.handle do
  my_possible_error_code
end

The possible error is swallowed and never raised.

If I use:

Rails.error.record do
  my_possible_error_code
end

The possible error is always raised.

If I use:

Rails.error.unexpected("Unexpected error") do
  my_possible_error_code
end

The error is swallowed in production but not in test/development. But the error is wrapped in a ActiveSupport::ErrorReporter::UnexpectedError and the original message is hidden, which makes the console/log output information useless.

Where is the sweet combination where?:

The error is swallowed in production
The error is raised in test/development

Or, what workaround I can do to have this behaviour?

Not sure where these snippets live, but I suspect config.consider_all_requests_local might have something to do with it. I'd set it to false in development and see if the behavior matches what you see in PROD. — dbugger
– dbugger, Commented Oct 30 at 11:41
Have you tried just using a conditional like if Rails.env.local? — engineersmnky
– engineersmnky, Commented Oct 30 at 17:47
@engineersmnky, yes, forking by env may be a solution, but I don't find any way to use this approach without generating super messy code. The whole Rails.error is about to make error handling not add noise to your code — fguillen
– fguillen, Commented Oct 31 at 11:15

fguillen · Accepted Answer · 2025-11-07 08:33:19Z

1

My workaround has been to create a custom `ErrorSubscriber` :

# config/initializers/error_subscriber.rb
class ErrorSubscriber
  def report(error, handled:, severity:, context:, source: nil)
    args = { error:, handled:, severity:, context:, source: }
    Rails.logger.error("ErrorSubscriber.report: #{args.inspect}")

    raise error if Rails.env.local?
  end
end

edited Nov 7 at 8:33

answered Oct 31 at 13:26

fguillen

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2 Comments

mechnicov Nov 4 at 0:56

You can use single condition Rails.env.local? instead of Rails.env.test? || Rails.env.development?

fguillen Nov 7 at 8:33

updated, thanks

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