Method: Mongo::Server::Monitor::Connection#handshake!

Defined in:
lib/mongo/server/monitor/connection.rb

#handshake! ⇒ BSON::Document

This method is part of a private API. You should avoid using this method if possible, as it may be removed or be changed in the future.

Send handshake command to connected host and validate the response.

Returns:

  • (BSON::Document) —

    Handshake response from server

Raises:

Since:

  • 2.0.0



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# File 'lib/mongo/server/monitor/connection.rb', line 197

def handshake!
  command = handshake_command(
    handshake_document(
      @app_metadata,
      server_api: options[:server_api]
    )
  )
  payload = command.serialize.to_s
  message = dispatch_bytes(payload)
  result = Operation::Result.new(message)
  result.validate!
  reply = result.documents.first
  set_compressor!(reply)
  set_hello_ok!(reply)
  @server_connection_id = reply['connectionId']
  reply
rescue => exc
  msg = "Failed to handshake with #{address}"
  Utils.warn_bg_exception(msg, exc,
    logger: options[:logger],
    log_prefix: options[:log_prefix],
    bg_error_backtrace: options[:bg_error_backtrace],
  )
  raise
end