RPC Method (eth_subscribe) example for Avalanche

eth_subscribe

Subscribes to a specified event type, optionally restricted to one ormany objects. This method is available via websocket only.

Parameters

type - string

A subscription type, such as newHeads (new headers appended to the chain, including chain reorganizations), logs (logs that are included in new imported blocks and match the given filter criteria) or newPendingTransactions (hashes for all transactions that are added to the pending state and are signed with a key that is available in the node).

objects - hex string

Optional argumants such as an address, multiple addresses, and topics.

Request

wscat -c wss://avax.getblock.io/YOUR-API-KEY/mainnet/ 
# wait for connection and send the request body 
{"jsonrpc": "2.0",
"method": "eth_subscribe",
"params": ["newHeads", null],
"id": "getblock.io"}

Response

{
    "id": 1,
    "jsonrpc": "2.0",
    "result": "0xe5af64ddfd365b4632988c5935cfedb7"
}

{ "overview": "Overview", "guides": "Guides", "get-started": "Get Started", "rpc-service": "Nodes Methods", "getblock-explorer": "Explorer API", "getblock-tracker": "Tracker API", "nodes-endpoints": "Nodes Endpoints" }