Method: Bunny::Channel#basic_ack

Defined in:
lib/bunny/channel.rb

#basic_ack(delivery_tag, multiple = false) ⇒ NilClass

Acknowledges a delivery (message).

Examples:

Ack a message

conn  = Bunny.new
conn.start

ch    = conn.create_channel
q.subscribe do |delivery_info, properties, payload|
  # requeue the message
  ch.basic_ack(delivery_info.delivery_tag.to_i)
end

Ack a message fetched via basic.get

conn  = Bunny.new
conn.start

ch    = conn.create_channel
# we assume the queue exists and has messages
delivery_info, properties, payload = ch.basic_get("bunny.examples.queue3", :manual_ack => true)
ch.basic_ack(delivery_info.delivery_tag.to_i)

Ack multiple messages fetched via basic.get

conn  = Bunny.new
conn.start

ch    = conn.create_channel
# we assume the queue exists and has messages
_, _, payload1 = ch.basic_get("bunny.examples.queue3", :manual_ack => true)
_, _, payload2 = ch.basic_get("bunny.examples.queue3", :manual_ack => true)
delivery_info, properties, payload3 = ch.basic_get("bunny.examples.queue3", :manual_ack => true)
# ack all fetched messages up to payload3
ch.basic_ack(delivery_info.delivery_tag.to_i, true)

Parameters:

  • Delivery tag obtained from delivery info

  • (defaults to: false)

    Should all deliveries up to this one be acknowledged?

Returns:

  • nil

See Also:

API:

  • public



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# File 'lib/bunny/channel.rb', line 877

def basic_ack(delivery_tag, multiple = false)
  guarding_against_stale_delivery_tags(delivery_tag) do
    raise_if_no_longer_open!
    @connection.send_frame(AMQ::Protocol::Basic::Ack.encode(@id, delivery_tag, multiple))

    nil
  end
end