class Mixpanel::BufferedConsumer

BufferedConsumer buffers messages in memory, and sends messages as a batch. This can improve performance, but calls to send! may still block if the buffer is full. If you use this consumer, you should call flush when your application exits or the messages remaining in the buffer will not be sent.

To use a BufferedConsumer directly with a Mixpanel::Tracker, instantiate your Tracker like this

buffered_consumer =
    buffered_tracker = do |type, message|
        buffered_consumer.send!(type, message)
    # Do some tracking here



Public Class Methods

new(events_endpoint=nil, update_endpoint=nil, import_endpoint=nil, max_buffer_length=MAX_LENGTH, &block) click to toggle source

Create a Mixpanel::BufferedConsumer. If you provide endpoint arguments, they will be used instead of the default Mixpanel endpoints. This can be useful for proxying, debugging, or if you prefer not to use SSL for your events.

You can also change the preferred buffer size before the consumer automatically sends its buffered events. The Mixpanel endpoints have a limit of 50 events per HTTP request, but you can lower the limit if your individual events are very large.

By default, BufferedConsumer will use a standard Mixpanel consumer to send the events once the buffer is full (or on calls to flush), but you can override this behavior by passing a block to the constructor, in the same way you might pass a block to the Mixpanel::Tracker constructor. If a block is passed to the constructor, the *_endpoint constructor arguments are ignored.

# File lib/mixpanel-ruby/consumer.rb, line 180
def initialize(events_endpoint=nil, update_endpoint=nil, import_endpoint=nil, max_buffer_length=MAX_LENGTH, &block)
  @max_length = [max_buffer_length, MAX_LENGTH].min
  @buffers = {
    :event => [],
    :profile_update => [],

  if block
    @sink = block
    consumer =, update_endpoint, import_endpoint)
    @sink = consumer.method(:send!)

Public Instance Methods

flush() click to toggle source

Pushes all remaining messages in the buffer to Mixpanel. You should call flush before your application exits or messages may not be sent.

# File lib/mixpanel-ruby/consumer.rb, line 221
def flush
  @buffers.keys.each { |k| flush_type(k) }
send(type, message) click to toggle source

This method was deprecated in release 2.0.0, please use send! instead

# File lib/mixpanel-ruby/consumer.rb, line 213
def send(type, message)
    warn '[DEPRECATION] send has been deprecated as of release 2.0.0, please use send! instead'
    send!(type, message)
send!(type, message) click to toggle source

Stores a message for Mixpanel in memory. When the buffer hits a maximum length, the consumer will flush automatically. Flushes are synchronous when they occur.

Currently, only :event and :profile_update messages are buffered, :import messages will be send immediately on call.

# File lib/mixpanel-ruby/consumer.rb, line 201
def send!(type, message)
  type = type.to_sym

  if @buffers.has_key? type
    @buffers[type] << message
    flush_type(type) if @buffers[type].length >= @max_length
  else, message)