Connecting to Multiple Services simultaneously
We are currently using the RFA 8.2 C++ API to consume market data and would like to clarify some functionality. Is it possible for a consumer application to simultaneously connect to multiple services on TREP/ADS, such as IDN_SELECT etc. and send requests to these different services for different symbols?
Can you also provide the multiple services available and purpose of each one?
Best Answer
-
Thank you for reaching out to us.
ADS can advertise multiple services via source directory messages. Please refer to the RFA developer guide in section14.2.3 regarding Requesting a Directory.
Then, the application can specify a service name in an item request message.
Handle* StarterConsumer::sendItemRequest(const RFA_String& itemName, const RFA_String& serviceName, UInt8 indicationMask, UInt8 msgModelType, Int32 interType)
{
Handle* pHandle = 0;
ReqMsg reqMsg;
AttribInfo attribInfo;
reqMsg.setMsgModelType(msgModelType);
reqMsg.setInteractionType(interType);
attribInfo.setNameType(INSTRUMENT_NAME_RIC);
attribInfo.setName(itemName);
attribInfo.setServiceName(serviceName);
reqMsg.setAttribInfo(attribInfo);You can only specify only one service in an item request message.
0
Answers
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Thank you for your response. Just to clarify let's say I have configured 3 services ServiceA, ServiceB and ServiceC in my consumer application (Note : Single instance of consumer application). Then is it possible in an item request I can specify the different service name for different request?
For example:
- For
symbol1
, I would useattribInfo.setServiceName(ServiceA);
- For
symbol2
, I would useattribInfo.setServiceName(ServiceC);
- For
symbol3
, I would useattribInfo.setServiceName(ServiceA);
and so on
Can I use this approach?
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