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Implementation of FIX messages for Fix 5.0 sp2 and FIXT1.1 specification

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This post will demonstrate how to connect with FIX5.0 server and FIXT1.1 specification and uses of QuickFix/n (native .net FIX engine).

Introduction

With this release of FIX protocol version 5.0, a new Transport Independence framework (TI) introduced which separates the FIX Session Protocol from the FIX Application Protocol. This gives freedom to send message across different messaging technologies like MSMQ, message bus etc.

Because of different versions of transport and application protocol, we will have to explicitly defines settings in config file.

TransportDataDictionary is used for defining transport protocol version eg. FIXT.1.1.xml

AppDataDictionary is used for defining data dictionary for FIX application protocol version eg. FIX50.xml

You can read more about FIXT1.1 and FIX 5.0 Sp2 specification on fixprotocol.org.

http://fixprotocol.org/specifications/FIXT.1.1

http://fixprotocol.org/specifications/FIX.5.0

 

QuickFix/N

To demonstrate implementation of FIX 5.0 sp2, I’ll use open source FIX engine for .net (QuickFix/N) which is one of open source engine in native .net code.  Code for quickfix.net is available on github and primarily contributed by Connamara System’s developers. These guys are doing commendable job.

 

Implementation

FixInitiator

This is client application which will connect with FIX server to send and receive FIX messages. I am demonstrating implementation of MarketDataRequest and its responses (MarketDataSnapshot & MarketDataIncrementalRefresh).

 

Start with Configuration

First we create configuration file for initiator.

[default]
PersistMessages=Y
ConnectionType=initiator
UseDataDictionary=Y

[SESSION]
ConnectionType=initiator
FileStorePath=store
FileLogPath=fixlog
BeginString=FIXT.1.1
DefaultApplVerID=FIX.5.0

TransportDataDictionary=FIXT.1.1.xml

AppDataDictionary=FIX50.xml
SenderCompID=ABC
TargetCompID=FIXSERVER
SocketConnectHost=127.0.0.1
SocketConnectPort=3500
HeartBtInt=20
ReconnectInterval=30
ResetOnLogon=Y
ResetOnLogout=Y
ResetOnDisconnect=Y

 

*Note- AppDataDictionary is for application protocol eg. FIX 5.0 and TransportDataDictionary is for transport protocol.

You can read more about configuration here.

Create Application Class

Before starting with implementation you would need to have quickFix.dll which is available of github  athttps://github.com/connamara/quickfixn

 

To connect with FIX session, you will have to implement QuickFix.Application interface.

public interface Application
{
void FromAdmin(Message message, SessionID sessionID);
void FromApp(Message message, SessionID sessionID);
void OnCreate(SessionID sessionID);
void OnLogon(SessionID sessionID);
void OnLogout(SessionID sessionID);
void ToAdmin(Message message, SessionID sessionID);
void ToApp(Message message, SessionID sessionId);
}

I create one class named FixClient50Sp2 which implements interface and inherit base class for message cracking and getting message events.

image

 

FIX Application Setup

 

Setting up Initiator

// FIX app settings and related
var settings = new SessionSettings(“C:\\initiator.cfg”);

// FIX application setup
MessageStoreFactory storeFactory = new FileStoreFactory(settings);
LogFactory logFactory = new FileLogFactory(settings);
_client = new FixClient50Sp2(settings);

IInitiator initiator = new SocketInitiator(_client, storeFactory, settings, logFactory);
_client.Initiator = initiator;

 

* _client is instance of class FixClient50Sp2.

Starting Initiator

_client.Start();

 

Implementation of QuickFix.Application Interface methods

/// <summary>
/// every inbound admin level message will pass through this method,
/// such as heartbeats, logons, and logouts.
/// </summary>
/// <param name=”message”></param>
/// <param name=”sessionId”></param>
public void FromAdmin(Message message, SessionID sessionId)
{
Log(message.ToString());
}

/// <summary>
/// every inbound application level message will pass through this method,
/// such as orders, executions, secutiry definitions, and market data.
/// </summary>
/// <param name=”message”></param>
/// <param name=”sessionID”></param>
public void FromApp(Message message, SessionID sessionID)
{
Trace.WriteLine(“## FromApp: ” + message);

Crack(message, sessionID);
}

/// <summary>
/// this method is called whenever a new session is created.
/// </summary>
/// <param name=”sessionID”></param>
public void OnCreate(SessionID sessionID)
{
if (OnProgress != null)
Log(string.Format(“Session {0} created”, sessionID));
}

/// <summary>
/// notifies when a successful logon has completed.
/// </summary>
/// <param name=”sessionID”></param>
public void OnLogon(SessionID sessionID)
{
ActiveSessionId = sessionID;
Trace.WriteLine(String.Format(“==OnLogon: {0}==”, ActiveSessionId));

if (LogonEvent != null)
LogonEvent();
}

/// <summary>
/// notifies when a session is offline – either from
/// an exchange of logout messages or network connectivity loss.
/// </summary>
/// <param name=”sessionID”></param>
public void OnLogout(SessionID sessionID)
{
// not sure how ActiveSessionID could ever be null, but it happened.
string a = (ActiveSessionId == null) ? “null” : ActiveSessionId.ToString();
Trace.WriteLine(String.Format(“==OnLogout: {0}==”, a));

if (LogoutEvent != null)
LogoutEvent();
}

/// <summary>
/// all outbound admin level messages pass through this callback.
/// </summary>
/// <param name=”message”></param>
/// <param name=”sessionID”></param>
public void ToAdmin(Message message, SessionID sessionID)
{
Log(“To Admin : ” + message);
}

/// <summary>
/// all outbound application level messages pass through this callback before they are sent.
/// If a tag needs to be added to every outgoing message, this is a good place to do that.
/// </summary>
/// <param name=”message”></param>
/// <param name=”sessionId”></param>
public void ToApp(Message message, SessionID sessionId)
{
Log(“To App : ” + message);
}

 

 

Callback to Subscription

public void OnMessage(MarketDataIncrementalRefresh message, SessionID session)
{
var noMdEntries = message.NoMDEntries;
var listOfMdEntries = noMdEntries.getValue();
//message.GetGroup(1, noMdEntries);
var group = new MarketDataIncrementalRefresh.NoMDEntriesGroup();

Group gr = message.GetGroup(1, group);

string sym = message.MDReqID.getValue();

var price = new MarketPrice();

for (int i = 1; i <= listOfMdEntries; i++)
{
group = (MarketDataIncrementalRefresh.NoMDEntriesGroup)message.GetGroup(i, group);

price.Symbol = group.Symbol.getValue();

MDEntryType mdentrytype = group.MDEntryType;

if (mdentrytype.getValue() == ‘0’) //bid
{
decimal px = group.MDEntryPx.getValue();
price.Bid = px;
}
else if (mdentrytype.getValue() == ‘1’) //offer
{
decimal px = group.MDEntryPx.getValue();
price.Offer = px;
}

price.Date = Constants.AdjustedCurrentUTCDate.ToString(“yyyyMMdd”);
price.Time = group.MDEntryTime.ToString();
}

if (OnMarketDataIncrementalRefresh != null)
{
OnMarketDataIncrementalRefresh(price);
}
}

 

Code can be found at github.

 

https://github.com/neerajkaushik123/Fix50Sp2SampleApp.git

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7 Comments

  1. louis says:

    Hi Neeraj

    Thanks for a great post. Does this implementaion allow for full FIX 5.0 Sp2 tags, with your sample code I cant seem to get the TargetParties() component on message OrderMassCancelRequest (q).

    Any help will be appreciated.

    Like

  2. louis says:

    Hi Neeraj,

    Thanks for the reply

    I downloaded the latest version and still dont have the tag, I see that it is only present in FIX50SP2.xml and not in the others, (suspect that it was intoduced in SP2). I looked at reflector and the DLL does not contain the TargetParties group in the definition. Thus I suspect that the quickfix dll was not compiled with FIX50SP2.xml, might be wrong. Any ideas?

    Like

  3. I’ll check with quickfix team about implementations…If you like you can also change quick fix library code for specific requirements.

    Like

  4. FIX Coder says:

    Hi Neeraj

    Why do you required any third party tool to implement FIX?FAST.You can create your own C# classes to implement FIX/FAST. Not a good post.

    Like

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