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, parâmetros, e id. If jsonrpc ou id is omitted, the message is routed to a different internal parser and rejected with errors such as Invalid message: missing field 'type' ou -32604.

Parâmetros

streamType

cadeia de caracteres

OBRIGATÓRIO

Carregando...

filters

objeto

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filterName

cadeia de caracteres

Carregando...

Devoluções

resultado

objeto

Carregando...

tipo

cadeia de caracteres

Carregando...

stream

cadeia de caracteres

Carregando...

block

objeto

Carregando...

local_time

cadeia de caracteres

Carregando...

block_time

cadeia de caracteres

Carregando...

block_number

número inteiro

Carregando...

events

matriz

Carregando...

Pedido

1
wscat -c /hypercore/ws \
2
# aguardar a ligação
3
{"jsonrpc":"2.0","method":"hl_subscribe","params":{"streamType":"trades"},"id":1}
4

1
wscat -c /hypercore/ws \
2
# aguardar a ligação
3
{"jsonrpc":"2.0","method":"hl_subscribe","params":{"streamType":"trades"},"id":1}
4

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