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FixSessionInitiator.md

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FIX Session Initiator

Create

Call the following method to create a session:

IFixSession session = sessionParameters.CreateNewFixSession();

You can use the autoreconnectAttempts configurations parameter set to positive value to create sessions that will try to reconnect if the connection is lost.

After the session is created, set a listener

session.SetFixSessionListener(IFixSessionListener listener);

After the session is created, use the method below to connect it as an initiator.

session.Connect();

Establish connection

After session.Connect() is called, the initiator starts attempts to establish a FIX session in the background. The following scenario is executed:

  • Establish telecommunication link (TCP/IP)
  • Send Logon message
  • Wait for confirm logon message
  • Move to "established" state

There is no need to wait until the connection is established to send messages. If the connection is not established, messages will be sent later after the connection process succeeds.

Reconnect

The initiator is responsible for restoring a connection once it is broken. When a connection error is detected, the initiator moves to the "Reconnect" state and starts the reconnection process. The foillowing scenario is executed:

  1. Establish telecommunication link
  2. Send Logon message
  3. Repeat from 1 if 1 or 2 fails
  4. Stop trying if attempts are over

The number of reconnection attempts and delay can be set in the properties file.

Disconnect

You can use the following method to disconnect the initiator (the process can also be called "terminate", "delete", "close"):

session.Disconnect(string reason);

Dispose

To release all of a session's resources and unregister the session, use:

session.Dispose();

Send message

To send outgoing application-level messages, use one of the following methods:

session.SendMessage(string type, FixMessage content)

or

session.SendMessage(FixMessage message)

All session-level messages are sent automatically when needed.