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struct Athena::HTTPKernel::Listeners::Error
inherits Struct #

Handles an exception by converting it into an AHTTP::Response via an AHK::ErrorRendererInterface.

This listener defines a log_exception protected method that determines how the exception gets logged. Non AHK::Exception::HTTPExceptions and server errors are logged as errors. Validation errors (AHK::Exception::UnprocessableEntity) are logged as notice. Everything else is logged as a warning. The method can be redefined if different logic is desired.

struct AHK::Listeners::Error
  # :inherit:
  protected def log_exception(exception : ::Exception, & : -> String) : Nil
    # Don't log anything if an exception is some specific type.
    return if exception.is_a? MyException

    # Exception types could also include modules to act as interfaces to determine their level, E.g. `include NoticeException`.
    if exception.is_a? NoticeException
      Log.notice(exception: exception) { yield }
      return
    end

    # Otherwise fallback to the default implementation.
    previous_def
  end
end

Constructors#

.new(error_renderer : AHK::ErrorRendererInterface)#

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Methods#

#on_exception(event : AHK::Events::Exception) : Nil#

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