How can I filter only the operated instruments from a chain of a lot of instruments?
RKD API
When a consume a chain of a lot of instruments (19K) I only need the ones that operate, so… I just want to know if there is a way to filter the operated instruments from the big chain through code.
Thanks for the support.
Regards
Tagged:
0
Answers
-
Hello @aendrch
According to the RKD API document, the child item is available in the ChildItem array attribute of the return JSON data from the RKD API Quote Service:
The example data:
{ "RetrieveItem_Response_3": { "ItemResponse": [ { "Item": [ { "RequestKey": { "Name": "0#.HSI", "Service": "IDN", "NameType": "RIC" }, .... "ChildItem": [ { "Name": ".HSI", "Status": { "StatusMsg": "OK", "StatusCode": 0 }, "Fields": { "Field": [ { "DataType": "Double", "Name": "CF_CLOSE", "Double": 19560.44 }, .... ] } }, { "Name": "0001.HK", "Status": { "StatusMsg": "OK", "StatusCode": 0 }, "Fields": { "Field": [ .... ] } }, ... ] } ] } ] } }
You can iterate JSON data array inside the ChildItem array to get data that you want.
Example with Python to get 0002.HK data of 0#.HSI Chain RIC.
for child_item in data['RetrieveItem_Response_3']['ItemResponse'][0]['Item'][0]['ChildItem']:
if child_item['Name'] == '0002.HK':
print(child_item)Result:
Please note that you can use Field Filtering function to specify only interested fields or set expand chain to false in the request to reduce size of return data.
0
Categories
- All Categories
- 3 Polls
- 6 AHS
- 36 Alpha
- 166 App Studio
- 6 Block Chain
- 4 Bot Platform
- 18 Connected Risk APIs
- 47 Data Fusion
- 34 Data Model Discovery
- 685 Datastream
- 1.4K DSS
- 615 Eikon COM
- 5.2K Eikon Data APIs
- 10 Electronic Trading
- Generic FIX
- 7 Local Bank Node API
- 3 Trading API
- 2.9K Elektron
- 1.4K EMA
- 252 ETA
- 556 WebSocket API
- 38 FX Venues
- 14 FX Market Data
- 1 FX Post Trade
- 1 FX Trading - Matching
- 12 FX Trading – RFQ Maker
- 5 Intelligent Tagging
- 2 Legal One
- 23 Messenger Bot
- 3 Messenger Side by Side
- 9 ONESOURCE
- 7 Indirect Tax
- 60 Open Calais
- 275 Open PermID
- 44 Entity Search
- 2 Org ID
- 1 PAM
- PAM - Logging
- 6 Product Insight
- Project Tracking
- ProView
- ProView Internal
- 22 RDMS
- 1.9K Refinitiv Data Platform
- 652 Refinitiv Data Platform Libraries
- 4 LSEG Due Diligence
- LSEG Due Diligence Portal API
- 4 Refinitiv Due Dilligence Centre
- Rose's Space
- 1.2K Screening
- 18 Qual-ID API
- 13 Screening Deployed
- 23 Screening Online
- 12 World-Check Customer Risk Screener
- 1K World-Check One
- 46 World-Check One Zero Footprint
- 45 Side by Side Integration API
- 2 Test Space
- 3 Thomson One Smart
- 10 TR Knowledge Graph
- 151 Transactions
- 143 REDI API
- 1.8K TREP APIs
- 4 CAT
- 27 DACS Station
- 121 Open DACS
- 1.1K RFA
- 104 UPA
- 193 TREP Infrastructure
- 228 TRKD
- 917 TRTH
- 5 Velocity Analytics
- 9 Wealth Management Web Services
- 90 Workspace SDK
- 11 Element Framework
- 5 Grid
- 18 World-Check Data File
- 1 Yield Book Analytics
- 46 中文论坛