Class: Muxi::FormationTransport

Inherits:
Object
  • Object
show all
Defined in:
lib/muxi/formation_client.rb

Constant Summary collapse

RETRY_STATUSES = 
[429, 500, 502, 503, 504].freeze

Instance Method Summary collapse

Constructor Details

#initialize(base_url:, admin_key:, client_key:, timeout:, max_retries:, debug:, logger:, app: nil) ⇒ FormationTransport

Returns a new instance of FormationTransport.



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# File 'lib/muxi/formation_client.rb', line 55

def initialize(base_url:, admin_key:, client_key:, timeout:, max_retries:, debug:, logger:, app: nil)
  @base_url = base_url.chomp("/")
  @admin_key = (admin_key || "").strip
  @client_key = (client_key || "").strip
  @timeout = timeout || 30
  @max_retries = max_retries || 0
  @debug = debug || Muxi.debug?
  @logger = logger || Logger.new($stdout, level: Logger::DEBUG)
  @app = app
end

Instance Method Details

#request_json(method, path, params: nil, body: nil, use_admin: true, user_id: "") ⇒ Object 



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# File 'lib/muxi/formation_client.rb', line 66

def request_json(method, path, params: nil, body: nil, use_admin: true, user_id: "")
  url, full_path = build_url(path, params)
  headers = build_headers(use_admin: use_admin, user_id: user_id, content_type: body ? "application/json" : nil)

  attempt = 0
  backoff = 0.5

  loop do
    start_time = Time.now
    begin
      response = execute_request(method, url, headers, body)
      elapsed = Time.now - start_time
      log("#{method} #{full_path} -> #{response.code} (#{elapsed.round(3)}s)")

      # Check for SDK updates (non-blocking, once per process)
      VersionCheck.check_for_updates(response.to_hash.transform_values(&:first))

      if response.code.to_i >= 400
        handle_error_response(response, method, url, attempt, backoff)
        backoff *= 2
        attempt += 1
        next if attempt <= @max_retries
      end

      return parse_response(response)
    rescue Errno::ECONNREFUSED, Errno::ETIMEDOUT, Net::OpenTimeout, SocketError => e
      if attempt < @max_retries
        sleep_for = [backoff, 30].min
        log("retry #{method} #{full_path} after #{sleep_for}s due to connection error: #{e}")
        sleep(sleep_for)
        backoff *= 2
        attempt += 1
        next
      end
      raise ConnectionError.new("CONNECTION_ERROR", e.message, 0)
    end
  end
end

#stream_sse(method, path, params: nil, body: nil, use_admin: true, user_id: "", &block) ⇒ Object 



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# File 'lib/muxi/formation_client.rb', line 105

def stream_sse(method, path, params: nil, body: nil, use_admin: true, user_id: "", &block)
  return enum_for(:stream_sse, method, path, params: params, body: body, use_admin: use_admin, user_id: user_id) unless block_given?

  url, _ = build_url(path, params)
  headers = build_headers(use_admin: use_admin, user_id: user_id, content_type: body ? "application/json" : nil, accept: "text/event-stream")

  uri = URI.parse(url)
  http = Net::HTTP.new(uri.host, uri.port)
  http.use_ssl = uri.scheme == "https"
  http.read_timeout = nil

  request = build_request(method, uri, headers, body)
  
  event = nil
  data_parts = []
  buffer = +""

  http.request(request) do |response|
    response.read_body do |chunk|
      buffer << chunk
      while (newline = buffer.index("\n"))
        raw_line = buffer.slice!(0..newline)
        line = raw_line.delete_suffix("\n").delete_suffix("\r")
        parsed = consume_sse_line(line, event, data_parts)
        event = parsed[:event]
        data_parts = parsed[:data_parts]
        next unless parsed[:emitted]

        throw_if_route_error(parsed[:emitted])
        yield(parsed[:emitted])
      end
    end
  end

  unless buffer.empty?
    parsed = consume_sse_line(buffer.delete_suffix("\r"), event, data_parts)
    event = parsed[:event]
    data_parts = parsed[:data_parts]
    if parsed[:emitted]
      throw_if_route_error(parsed[:emitted])
      yield(parsed[:emitted])
    end
  end

  emitted = flush_sse_event(event, data_parts)
  if emitted
    throw_if_route_error(emitted)
    yield(emitted)
  end
end