Solana RPC · WebSocket subscriptions

WS slotSubscribe

Stream a notification on every new slot.

Endpoint

WebSocket  wss://solrpc.infinityblocks.io/<API_KEY>

Open the socket, then send a JSON-RPC slotSubscribe message. The server replies with a subscription id, then pushes notifications until you unsubscribe.

Parameters

This method takes no parameters.

Subscribe message

{"jsonrpc":"2.0","id":1,"method":"slotSubscribe"}

With @solana/web3.js

rpc.onSlotChange((s) => console.log(s.slot));

Reply

{ "jsonrpc": "2.0", "id": 1, "result": 0   // subscription id }

Notification

{ "jsonrpc": "2.0", "method": "slotNotification",
  "params": { "subscription": 0, "result": { "parent": 423214980, "root": 423214949, "slot": 423214981 } } }

Try it

The interactive runner covers HTTP methods. WebSocket subscriptions use a persistent socket — use the subscribe message and the @solana/web3.js example above.
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