Class: ActionSubscriber::Middleware::ErrorHandler
- Inherits:
-
Object
- Object
- ActionSubscriber::Middleware::ErrorHandler
- Includes:
- Logging
- Defined in:
- lib/action_subscriber/middleware/error_handler.rb
Instance Method Summary collapse
- #call(env) ⇒ Object
-
#initialize(app) ⇒ ErrorHandler
constructor
A new instance of ErrorHandler.
Methods included from Logging
initialize_logger, logger, #logger, logger=
Constructor Details
#initialize(app) ⇒ ErrorHandler
Returns a new instance of ErrorHandler.
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# File 'lib/action_subscriber/middleware/error_handler.rb', line 6 def initialize(app) @app = app end |
Instance Method Details
#call(env) ⇒ Object
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# File 'lib/action_subscriber/middleware/error_handler.rb', line 10 def call(env) @app.call(env) rescue Exception => error # make sure we capture any exception from the top of the hierarchy logger.error { "FAILED #{env.}" } # There is more to this rescue than meets the eye. MarchHare's java library will rescue errors # and attempt to close the channel with its default exception handler. To avoid this, we will # stop errors right here. If you want to handle errors, you must do it in the error handler and # it should not re-raise. As a bonus, not killing these threads is better for your runtime :). begin ::ActionSubscriber.configuration.error_handler.call(error, env.to_h) rescue Exception => inner_error logger.error { "ActionSubscriber error handler raised error, but should never raise. Error: #{inner_error}" } end ensure env.safe_nack # Make sure we attempt to `nack` a message that did not get processed if something fails end |