Can someone explain the significance of MARKET_DATA_ITEM_EVENT and TibMsg? Why we need to use TibMsg and TibField for this event? For OMM_ITEM_EVENT we are able to use OMM APIs.

Hi @gaurav.mahajan,

Which API and version are you using? I'm assuming RFA 7.6.x or earlier given the group you posted in.

The rfa::sessionLayer::MarketDataItemEventEnum represents an event related to market data activity such as when you receive your initial data image and market data updates. The list of events is available within the Legacy section of the documentation:

You can also find example code segments within the Developers Guide.

This event is specifically related to the legacy message format: MarketFeed. The MarketFeed format is a text-based message format containing field/value pairs that is decoded using the TibMsg API. The basic idea is that you feed the raw message buffer into a TibMsg object and from there you can pull out the fields of interest. You can either use the .Get() method or pull out the fields using the TibField class. If you want to understand more, you can refer to the above screenshot and review the TibMsg programmers guide as well as review some of the examples.

All the above description is legacy reference and is no longer a strategic solution. Instead, TR replaced the Marketfeed format with the Reuters Wire Format (RWF) which is what OMM utilizes. The messages supported using this format have been completely rewritten to replace the legacy Marketfeed format.

Hope this helps.