Using websocket how to Fetch options chains/data

bopanna.alemada
Newcomer
in TREP APIs
HI
using websocket API is there a way how to Fetch options chains/data . What should be the request Key
Example for spx options : ""0#SPX*.U" ,I need to extract following fields [DSPLY_NAME","UNDERLYING","EXPIR_DATE","STRIKE_PRC","PUTCALLIND","PUT_CALL","OPINT_1"]
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Best Answer
-
Hello @bopanna.alemada
If you want those specific fields, you can use the WebSocket View feature to set only interested in a subset of the fields in the "View" attribute of the JSON request message as follows:
{
'ID': 2,
'Key': {
'Name': ['0#SPX*.U'],
'Service': 'ServiceName'
},
'View': [
'DSPLY_NAME', 'UNDERLYING', 'EXPIR_DATE', 'STRIKE_PRC', 'PUT_CALL', 'OPINT_1'
]
}If you want to get the Chain's RICs and their data, you need to get a list of RICs from the chain record, then manually subscribe to each RIC data.
You can find more detail in the following resources:
- My colleague answered in this old thread.
- Building a Chain Expander application using Websocket API and .NET Core C# article.
- Chain introduction in this Simple Chain objects for EMA - Part 1 article.
Hope this helps.
0
Answers
-
Thank you @wasin.w .
Let me go trough the samples
0
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