Many thanks for the pointer.
It seems partial page updates are supported via websocket API using RMTES encoding https://developers.refinitiv.com/en/article-catalog/article/encoding-and-decoding-non-ascii-text-using-ema-and-rfa-cnet
The syntax of an intra-field positioning sequence is as follows:
<CSI>n<HPA>YourTextWhere
- <CSI> is the Control Sequence Introducer (Hex 1B 5B which is as an ASCII "[")
- n is an ASCII numeric string representing the cursor offset position relative to the start of the field.
- <HPA> is the Horizontal Position Adjust character which terminates the intra-field position sequence (Hex 60 which is an ASCII " ` ")
I will give it a try.
RtContribute => WebSocket API mapping

Hi,
We are migrating our IDN pages contribution from Excel RtContribute() to your WebSocket API.
Our excel formulas look like:
=RtContribute("TRC", "PAGENAME", 317, 123.456789, "SCOPE:SERVER POS:7 FORMAT:6:4")
This will contribute the value '123.456789' to the page 'PAGENAME' at the row 3 (FID: 317 = ROW80_3) and at the position '7' with format '6:4'.
We want to translate this formula to a WebSocket API message. It would roughly look like this:
{
"Ack": true,
"ID": 1,
"Key": {
"Name": "PAGENAME",
"Service": "DDS_TRCE"
},
"Message": {
"Fields": {
"ROW80_3": 123.456789,
},
"ID": 0,
"Type": "Update"
},
"PostID": 1,
"Type": "Post"
}
However we have 2 questions:
- How to translate 'POS:7' into the above message?
- Is there a way to translate 'FORMAT:6:4' or shall we simply make sure the value in the message has the format we want?
Thank you
Best Answer
-
Many thanks for the pointer.
It seems partial page updates are supported via websocket API using RMTES encoding https://developers.refinitiv.com/en/article-catalog/article/encoding-and-decoding-non-ascii-text-using-ema-and-rfa-cnet
The syntax of an intra-field positioning sequence is as follows:
<CSI>n<HPA>YourText
Where
- <CSI> is the Control Sequence Introducer (Hex 1B 5B which is as an ASCII "[")
- n is an ASCII numeric string representing the cursor offset position relative to the start of the field.
- <HPA> is the Horizontal Position Adjust character which terminates the intra-field position sequence (Hex 60 which is an ASCII " ` ")
I will give it a try.
0
Answers
-
Hello @nittandev
Thank you for contacting us. To contribute the PAGE data with the WebSocket, the application needs to send the message in the string format that you need.
I hope this helps.
0 -
Hello @nittandev
I admit that I am not an expert in the PAGE based ric. However, I suggest you try my colleague's answer in this old post.
You may apply for the RDC and contact to the dedicated Real-Time APIs support team to help you with this question. You can submit a support ticket to the Real-Time APIs support team by clicking the "Contact premium support" on the Websocket API page.
Please contact RDC Administrator "><rdc.administrator@lseg.com> if you want to apply for RDC.
0 -
Confirmed working fine. The below json will contribute abc at row 6 column 5 of page MYPAGE
{
"Ack": true,
"Key": {
"Name": "MYPAGE",
"Service": "DDS_TRCE"
},
"Type": "Post",
"Message": {
"Type": "Update",
"ID": 1,
"Fields": {
"ROW80_6": "\u001B[5\u0060abc"
}
},
"PostID": 1,
"ID": 1,
"Domain": "MarketPrice"
}0
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