For a deeper look into our Elektron API, look into:

Overview |  Quickstart |  Documentation |  Downloads |  Tutorials |  Articles

question

Upvotes
Accepted
billr avatar image
1 ●0 ●1 ●2

Getting NAK posting via TSA using websocket api "UpdateMsg has no RSSL_UPMF_HAS_MSG_KEY flag"

Hi

I'm trying to use the Websocket API to make an off-stream post using a TREP service configured for TSA to TRCC. Currently I receive the following error

"NakCode":"DeniedBySrc", "Text":"UpdateMsg has no RSSL_UPMF_HAS_MSG_KEY flag",

Below is an extract of the message structure which is based on the code provided in the posting example for the Websocket API:

mp_post_json = {
  
    'ID': 1,
    'Type':'Post',
    'Domain':'MarketPrice',
    'Key': {
  
        'Name': 'EAASTEST01',
        'Service':'TSA_SERVICE'},
    'Ack':True,
    'PostID': post_id,
    'PostUserInfo': {
  
        'Address':position,  # Use IP address as the Post User Address.
	'UserID':os.getpid() # Use process ID as the Post User Id.},
    'Message': {
  
        'ID': 0,
        'Type':'Update',
        'Solicited': True,
        'Fields':{'BID':45.55,
                  'BIDSIZE':18,
                  'ASK':45.57,
                  'ASKSIZE':19}
    }
}

Thanks,

Bill

treprdp-apiwebsocketsrrtoposting
icon clock
10 |1500

Up to 2 attachments (including images) can be used with a maximum of 512.0 KiB each and 1.0 MiB total.

5 Answers

· Write an Answer
Upvotes
Accepted
Gurpreet avatar image
19.7k ●50 ●14 ●20

Hi @billr, Sorry for the delay, the key has to be included in the encoded update message. This update message works for me for contributing to TSA:

var msg = {
                
  "ID": 1,
  "Type": "Post",
  "Domain": "MarketPrice",
  "Ack": true,
  "PostID": postId,
  "PostUserInfo": {
                
    "Address": "127.0.0.1",
    "UserID": 5324
  },
  "Key": {
                
    "Name": "*****",
    "Service": "****"
  },
  "Message": {
                
    "Domain": "MarketPrice",
    "ID": 0,
    "Type": "Update",
    "Fields": {
                
      "BID": 45.55
    },
    "Key": {
                
      "Name": "****",
      "Service": "****"
    }
  }
};

Let me know if it doesn't work for you. Thanks.

icon clock
10 |1500

Up to 2 attachments (including images) can be used with a maximum of 512.0 KiB each and 1.0 MiB total.

Upvotes
Gurpreet avatar image
19.7k ●50 ●14 ●20

Hi @billr Can you confirm that your user ID is allowed to post to TRCC service to these fields, and that off-stream posting is correctly configured in ADS (no errors in ADS log).

icon clock
10 |1500

Up to 2 attachments (including images) can be used with a maximum of 512.0 KiB each and 1.0 MiB total.

Upvotes
billr avatar image
1 ●0 ●1 ●2

Hi @Gurpreet. Yes I should be able to contribute to these FIDs, but to simplify things a little I have cut the FID list to just BID(22). Also I'm not sure what I see seems to reflect an issue with entitlement, but I'm new to TSA/TRCC so not 100%.

No errors in the ADS or ADH logs, but if I set trace for the source session on the ADH(session rsslReactor.1) the message reflects what I see at the client. Looking at what I sent 'updateType="0 (RDM_UPD_EVENT_TYPE_UNSPECIFIED)"' seems to be relevant. Looks like I'm just missing a key or have misconstructed the post message.

Sent:

[Wed Apr 17 10:07:31.416634 2019] RSSL Message Of Length 75 Sent on Socket 26 <!-- rwfMajorVer="14" rwfMinorVer="1" --> <genericMsg domainType="RSSL_DMT_SYSTEM" streamId="3" containerType="RSSL_DT_MSG" flags="0x19 (RSSL_GNMF_HAS_EXTENDED_HEADER|RSSL_GNMF_HAS_SEQ_NUM|RSSL_GNMF_MESSAGE_COMPLETE)" seqNum="5" dataSize="58"> <extendedHeader data="0100"/> <dataBody> <!-- rwfMajorVer="14" rwfMinorVer="1" --> <postMsg domainType="RSSL_DMT_MARKET_PRICE" streamId="1" containerType="RSSL_DT_MSG" flags="0x66 (RSSL_PSMF_HAS_POST_ID|RSSL_PSMF_HAS_MSG_KEY|RSSL_PSMF_POST_COMPLETE|RSSL_PSMF_ACK)" postId="5057" postUserId="18040" postUserAddr="10.0.75.1" dataSize="20"> <key flags="0x7 (RSSL_MKF_HAS_SERVICE_ID|RSSL_MKF_HAS_NAME|RSSL_MKF_HAS_NAME_TYPE)" serviceId="10" name="EAASTEST01" nameType="1"/> <dataBody> <!-- rwfMajorVer="14" rwfMinorVer="1" --> <updateMsg domainType="RSSL_DMT_MARKET_PRICE" streamId="0" containerType="RSSL_DT_FIELD_LIST" flags="0x0" updateType="0 (RDM_UPD_EVENT_TYPE_UNSPECIFIED)" dataSize="9"> <dataBody> <fieldList flags="0x8 (RSSL_FLF_HAS_STANDARD_DATA)"> <fieldEntry fieldId="22" data="0C11 CB"/> </fieldList> </dataBody> </updateMsg> </dataBody> </postMsg> </dataBody> </genericMsg>

Received:

[Wed Apr 17 10:52:51.884601 2019] RSSL Message Of Length 76 Received on Socket 26 <!-- rwfMajorVer="14" rwfMinorVer="1" --> <genericMsg domainType="RSSL_DMT_SYSTEM" streamId="3" containerType="RSSL_DT_MSG" flags="0x19 (RSSL_GNMF_HAS_EXTENDED_HEADER|RSSL_GNMF_HAS_SEQ_NUM|RSSL_GNMF_MESSAGE_COMPLETE)" seqNum="549" dataSize="59"> <extendedHeader data="0100"/> <dataBody> <!-- rwfMajorVer="14" rwfMinorVer="1" --> <ackMsg domainType="RSSL_DMT_MARKET_PRICE" streamId="1" containerType="RSSL_DT_NO_DATA" flags="0x22 (RSSL_AKMF_HAS_TEXT|RSSL_AKMF_HAS_NAK_CODE)" ackId="7233" nakCode="RSSL_NAKC_DENIED_BY_SRC" text="UpdateMsg has no RSSL_UPMF_HAS_MSG_KEY flag" dataSize="0"> <dataBody> </dataBody> </ackMsg> </dataBody> </genericMsg>

icon clock
10 |1500

Up to 2 attachments (including images) can be used with a maximum of 512.0 KiB each and 1.0 MiB total.

Upvotes
Gurpreet avatar image
19.7k ●50 ●14 ●20

Hi @billr I am looking into it and will post my findings here.

icon clock
10 |1500

Up to 2 attachments (including images) can be used with a maximum of 512.0 KiB each and 1.0 MiB total.

Upvotes
billr avatar image
1 ●0 ●1 ●2

Hi @Gurpreet, That worked!!! thanks very much for your help. Much appreciated!!

icon clock
10 |1500

Up to 2 attachments (including images) can be used with a maximum of 512.0 KiB each and 1.0 MiB total.

Write an Answer

Hint: Notify or tag a user in this post by typing @username.

Up to 2 attachments (including images) can be used with a maximum of 512.0 KiB each and 1.0 MiB total.