Class: Statsig::Network

Inherits:
Object
  • Object
show all
Extended by:
T::Sig
Defined in:
lib/network.rb

Defined Under Namespace

Classes: HttpMethod

Instance Method Summary collapse

Constructor Details

#initialize(server_secret, options, backoff_mult = 10) ⇒ Network

Returns a new instance of Network.



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# File 'lib/network.rb', line 26

def initialize(server_secret, options, backoff_mult = 10)
  super()
  URIHelper.initialize(options)
  @server_secret = server_secret
  @local_mode = options.local_mode
  @timeout = options.network_timeout
  @backoff_multiplier = backoff_mult
  @post_logs_retry_backoff = options.post_logs_retry_backoff
  @post_logs_retry_limit = options.post_logs_retry_limit
  @session_id = SecureRandom.uuid
  @connection_pool = ConnectionPool.new(size: 3) do
    meta = Statsig.get_statsig_metadata
    client = HTTP.use(:auto_inflate).headers(
      {
        'STATSIG-API-KEY' => @server_secret,
        'STATSIG-SERVER-SESSION-ID' => @session_id,
        'Content-Type' => 'application/json; charset=UTF-8',
        'STATSIG-SDK-TYPE' => meta['sdkType'],
        'STATSIG-SDK-VERSION' => meta['sdkVersion'],
        'STATSIG-SDK-LANGUAGE-VERSION' => meta['languageVersion'],
        'Accept-Encoding' => 'gzip'
      }
    ).accept(:json)
    if @timeout
      client = client.timeout(@timeout)
    end

    client
  end
end

Instance Method Details

#download_config_specs(since_time) ⇒ Object 



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# File 'lib/network.rb', line 61

def download_config_specs(since_time)
  get("download_config_specs/#{@server_secret}.json?sinceTime=#{since_time}")
end

#get(endpoint, retries = 0, backoff = 1) ⇒ Object 



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# File 'lib/network.rb', line 76

def get(endpoint, retries = 0, backoff = 1)
  request(HttpMethod::GET, endpoint, nil, retries, backoff)
end

#post(endpoint, body, retries = 0, backoff = 1) ⇒ Object 



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# File 'lib/network.rb', line 84

def post(endpoint, body, retries = 0, backoff = 1)
  request(HttpMethod::POST, endpoint, body, retries, backoff)
end

#post_logs(events) ⇒ Object 



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# File 'lib/network.rb', line 135

def post_logs(events)
  json_body = JSON.generate({ 'events' => events, 'statsigMetadata' => Statsig.get_statsig_metadata })
  post('log_event', json_body, @post_logs_retry_limit)
rescue StandardError

end

#request(method, endpoint, body, retries = 0, backoff = 1) ⇒ Object 



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# File 'lib/network.rb', line 92

def request(method, endpoint, body, retries = 0, backoff = 1)
  if @local_mode
    return nil, nil
  end

  backoff_adjusted = backoff > 10 ? backoff += Random.rand(10) : backoff # to deter overlap
  if @post_logs_retry_backoff
    if @post_logs_retry_backoff.is_a? Integer
      backoff_adjusted = @post_logs_retry_backoff
    else
      backoff_adjusted = @post_logs_retry_backoff.call(retries)
    end
  end
  url = URIHelper.build_url(endpoint)
  begin
    res = @connection_pool.with do |conn|
      request = conn.headers('STATSIG-CLIENT-TIME' => (Time.now.to_f * 1000).to_i.to_s)
      case method
      when HttpMethod::GET
        request.get(url)
      when HttpMethod::POST
        request.post(url, body: body)
      end
    end
  rescue StandardError => e
    ## network error retry
    return nil, e unless retries.positive?

    sleep backoff_adjusted
    return request(method, endpoint, body, retries - 1, backoff * @backoff_multiplier)
  end
  return res, nil if res.status.success?

  unless retries.positive? && RETRY_CODES.include?(res.code)
    return res, NetworkError.new("Got an exception when making request to #{url}: #{res.to_s}",
                                 res.status.to_i)
  end

  ## status code retry
  sleep backoff_adjusted
  request(method, endpoint, body, retries - 1, backoff * @backoff_multiplier)
end