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eth_newBlockFilter RPC Method

Creates a filter in the node, to notify when a new block arrives. To check if the state has changed, call eth_getFilterChanges.

Updated on
Apr 07, 2026

Parameters

This method does not accept any parameters

Returns

result

It returns a filter id to be used when calling eth_getFilterChanges

Request
Response
1
{
2
"jsonrpc": "2.0",
3
"id": 1,
4
"result": "0xf25e39a259a0a7a1fe598089ac53bfd4"
5
}
1
{
2
"jsonrpc": "2.0",
3
"id": 1,
4
"result": "0xf25e39a259a0a7a1fe598089ac53bfd4"
5
}
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