hl_subscribe JSON-RPC Method
Access to
/hypercore JSON-RPC methods requires a Build plan or higher. View pricing to upgrade. For complete stream type definitions and filtering options, see the datasets documentation. For concurrent stream caps and filter limits by plan, see the Streaming Limits table.Need Low Latency?
For latency-sensitive applications, use HyperCore gRPC instead of WebSocket subscriptions. Quicknode's gRPC streaming API delivers market data with significantly lower overhead and is purpose-built for high-frequency trading and time-critical use cases.
Always send the full JSON-RPC envelope
Subscribe messages on /hypercore/ws must include the complete JSON-RPC envelope: jsonrpc, method, 參數，以及 id. If jsonrpc 或 id is omitted, the message is routed to a different internal parser and rejected with errors such as Invalid message: missing field 'type' 或 -32604.
參數
streamType
字串
必填
載入中...
filters
物件
載入中...
filterName
字串
載入中...
退貨
結果
物件
載入中...
類型
字串
載入中...
stream
字串
載入中...
區塊
物件
載入中...
local_time
字串
載入中...
block_time
字串
載入中...
block_number
整數
載入中...
events
陣列
載入中...
請求