Subscriptions
Index
Inverse futures index price updates
Public · 2 fields
Topic futures/inverse/btc_usd/index
Inverse futures index price updates
Public topic — anyone connected to the WebSocket can subscribe, no API key needed.
Subscribe
Subscribe by calling the subscribe method with this topic.
Request
{
"jsonrpc": "2.0",
"id": 1,
"method": "subscribe",
"params": {
"topics": [
"futures/inverse/btc_usd/index"
]
}
}Payload
Each notification carries the fields below in params.data.
time*numberindex*numberExample notification
The server pushes the JSON-RPC notification below for every event on this topic.
Notification
{
"jsonrpc": "2.0",
"method": "subscription",
"params": {
"topic": "futures/inverse/btc_usd/index",
"data": {
"time": 0,
"index": 0
}
}
}