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eth_subscribe

Returns an object with data about the sync status or false.

Reference: Here ****

Parameters:

subscription name - string - The type of event you want to subscribe to (i.e., newHeads, logs, pendingTransactions, newPendingTransactions). This method supports the following subscription types:
  • pendingTransactions - Returns full transactions that are sent to the network, marked as pending, and are sent from or to a certain address.\
  • newPendingTransactions - Returns the hash for all transactions that are added to the pending state and are signed with a key that is available in the node.\
  • newHeads - Fires a notification each time a new header is appended to the chain, including chain reorganizations.\
  • logs - Returns logs that are included in new imported blocks and match the given filter criteria.
data - object - (Optional) - Arguments such as an address, multiple addresses, and topics. Note, only logs that are created from these addresses or match the specified topics will return logs.
params: [
"0xd46e8dd67c5d32be8d46e8dd67c5d32be8058bb8eb970870f072445675058bb8eb970870f072445675",
]

Returns:

result - string - Hex encoded subscription ID. This ID will be attached to all received events and can also be used to cancel the subscription using eth_unsubscribe.
// Result
{"id":1,"result":"0x9a52eeddc2b289f985c0e23a7d8427c8","jsonrpc":"2.0"}
//Example
{
"jsonrpc":"2.0",
"method":"eth_subscription",
"params":{
"result":{
"blockHash":null,
"blockNumber":null,
"from":"0xa36452fc31f6f482ad823cd1cf5515177d57667f",
"gas":"0x1adb0",
"gasPrice":"0x7735c4d40",
"hash":"0x50bff0736c713458c92dd1848d12f3354149be1363123dae35e94e0f2a9d56bf",
"input":"0xa9059cbb0000000000000000000000000d0707963952f2fba59dd06f2b425ace40b492fe0000000000000000000000000000000000000000000015b1111266cfca100000",
"nonce":"0x0",
"to":"0xea38eaa3c86c8f9b751533ba2e562deb9acded40",
"transactionIndex":null,
"value":"0x0",
"v":"0x26",
"r":"0x195c2c1ed126088e12d290aa93541677d3e3b1d10f137e11f86b1b9227f01e3b",
"s":"0x60fc4edbf1527832a2a36dbc1e63ed6193a6eee654472fbebbf88ef1750b5344"},
"subscription":"0x9a52eeddc2b289f985c0e23a7d8427c8"
}
}
mainnet
testnet
wscat -c wss:///mainnet.ethereum.validationcloud.io/v1/<YOUR_API_KEY_HERE>
> '{"jsonrpc": "2.0", "id": 1, "method":"eth_subscribe","params":["newHeads"]}'
wscat -c wss:///goerli.ethereum.validationcloud.io/v1/<YOUR_API_KEY_HERE>
> '{"jsonrpc": "2.0", "id": 1, "method":"eth_subscribe","params":["newHeads"]}'