Market Index Subscription

Info

• The push delay of this method is about：5000ms

Market Index Subscription

• Method: index.subscribe
• Parameters:

Parameter Name	Required	Type	Notes
market_list	true	[]string	Market list. Empty list to subscribe to all markets.

• Example:

// Subscribe to a singular market
{
    "method": "index.subscribe",
    "params": {"market_list": ["BTCUSDT"]},
    "id": 1
}

// Subscribe to multiple markets
{
    "method": "index.subscribe",
    "params": {"market_list": ["BTCUSDT", "ETHUSDT"]},
    "id": 1
}

Market Index Price Push

• Method: index.update
• Parameters:

Parameter Name	Type	Notes
market	string	Market name
index_price	string	Index price
mark_price	string	Mark price

• Example:

{
    "method": "index.update",
    "data": {
        "market": "BTCUSDT",
        "index_price": "20000",
        "mark_price": "20000"
    },
    "id": null
}

Cancel Index Subscription

• Method: index.unsubscribe
• Parameters:

Parameter Name	Required	Type	Notes
market_list	true	[]string	Market list. Empty list to subscribe to all markets.

• Example:

// Unsubscribe to a singular market
{
  "method": "index.unsubscribe",
  "params": {"market_list": ["BTCUSDT"]},
  "id": 1
}

// Unsubscribe to multiple markets
{
  "method": "index.unsubscribe",
  "params": {"market_list": ["BTCUSDT", "ETHUSDT"]},
  "id": 1
}

// Unsubscribe to all markets
{
  "method": "index.unsubscribe",
  "params": {"market_list": []},
  "id": 1
}