eth_newFilter

Creates a filter object, based on filter options, to notify when the state changes (logs).

Params

(1)

1. Filter (required)

fromBlock

string

Match pattern:

^0x(0|[1-9a-f][0-9a-f]*)$

toBlock

string

Match pattern:

^0x(0|[1-9a-f][0-9a-f]*)$

address

topics

Result

(Filter identifier)

string

Match pattern:

^0x(0|[1-9a-f][0-9a-f]*)$

Example

Request

await window.ethereum.request({
  "method": "eth_newFilter",
  "params": [
    {
      "fromBlock": "0x137d3c2",
      "toBlock": "0x137d3c3",
      "address": "0xc02aaa39b223fe8d0a0e5c4f27ead9083c756cc2",
      "topics": []
    }
  ]
});

Result

"0x01"

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Params

Filter

Request

await window.ethereum.request({
  "method": "eth_newFilter",
  "params": [
    null
  ]
});