Module: Shoryuken::Middleware
- Defined in:
- lib/shoryuken/middleware/chain.rb,
lib/shoryuken/middleware/server/timing.rb,
lib/shoryuken/middleware/server/auto_delete.rb,
lib/shoryuken/middleware/server/active_record.rb,
lib/shoryuken/middleware/server/auto_extend_visibility.rb,
lib/shoryuken/middleware/server/exponential_backoff_retry.rb
Overview
Middleware is code configured to run before/after a message is processed. It is patterned after Rack middleware. Middleware exists for the server side (when jobs are actually processed).
To modify middleware for the server, just call with another block:
Shoryuken.configure_server do |config|
config.server_middleware do |chain|
chain.add MyServerHook
chain.remove ActiveRecord
end
end
To insert immediately preceding another entry:
Shoryuken.configure_server do |config|
config.server_middleware do |chain|
chain.insert_before ActiveRecord, MyServerHook
end
end
To insert immediately after another entry:
Shoryuken.configure_server do |config|
config.server_middleware do |chain|
chain.insert_after ActiveRecord, MyServerHook
end
end
This is an example of a minimal server middleware:
class MyServerHook
def call(worker_instance, queue, sqs_msg)
puts 'Before work'
yield
puts 'After work'
end
end