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Leon.Hong avatar image
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Update messages of batch request

Greetings

I created a client to send batch request for EUR=, AUD= and CAD=;

But in the update messages, there is no field to indicate what the RIC this message belongs to, example as below:

MESSAGE Msg Type: MsgType.UPDATE_RESP Msg Model Type: MARKET_PRICE Indication Flags: DO_NOT_CONFLATE Hint Flags: HAS_RESP_TYPE_NUM | HAS_SEQ_NUM SeqNum: 45374 RespTypeNum: 0 (UNSPECIFIED) Payload: 25 bytes FIELD_LIST FIELD_ENTRY 3378/PCTCHG_3M: 0.17 FIELD_ENTRY 3379/PCTCHG_6M: -3.13 FIELD_ENTRY 3380/PCTCHG_MTD: 0.66 FIELD_ENTRY 3381/PCTCHG_YTD: -5.24

MESSAGE Msg Type: MsgType.UPDATE_RESP Msg Model Type: MARKET_PRICE Indication Flags: DO_NOT_CONFLATE Hint Flags: HAS_RESP_TYPE_NUM | HAS_SEQ_NUM SeqNum: 45390 RespTypeNum: 0 (UNSPECIFIED) Payload: 13 bytes FIELD_LIST FIELD_ENTRY 114/BID_NET_CH: 0.0010 FIELD_ENTRY 372/IRGPRC: 0.08

Without the RIC code, I found it is impossible to distinguish the update message in a single processEvent.

If I do want to use the batch request feature, Any suggestion to resolve this please?

treprfarfa-apibatch
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2 Answers

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moragodkrit.chumsri_1 avatar image
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@Leon.Hong

RFA has a concepts of handle which application can used to identify subscription.

The first response (refresh or status) for an item specified in a batch item name list always includes the item name and the item handle. The client can use the item handle to identify subsequent response messages for the item or perform any kind of reissue on the newly created stream.

You may create item map to keep item name and item handle returned with Refresh message. And then use the map to check item name from the handle returned with the update message.

Our example StarterConsumer_BatchView also use this approach to check item name. Section 7.8.3 Processing Batch Individual Item Responses from RFA C++ Developer Guide provide some example and details for process the batch item response.

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Leon.Hong avatar image
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Thank you very much, moragodkrit

I checked the result, and do find the first three message will return a specific handle for each ric!

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