Eth_newFilter

Create a new log filter

post

Sends a JSON-RPC request to create a new filter for tracking log events. Returns a filter ID which can be used to query logs using eth_getFilterChanges or eth_getFilterLogs.

Authorizations

api-keyAuth

api-keystringRequired

Body

application/json

jsonrpcstringRequiredExample: 2.0

methodstringRequiredExample: eth_newFilter

idintegerRequiredExample: 1

Responses

200

Filter ID created successfully

application/json

jsonrpcstringOptionalExample: 2.0

idintegerOptionalExample: 1

resultstringOptional

Filter identifier as a hex string

Example: 0x16

post/

HTTPcURLJavaScriptPython

POST / HTTP/1.1
Host: core.nownodes.io
api-key: YOUR_API_KEY
Content-Type: application/json
Accept: */*
Content-Length: 237

{
  "jsonrpc": "2.0",
  "method": "eth_newFilter",
  "params": [
    {
      "fromBlock": "latest",
      "toBlock": "latest",
      "address": "0x1234567890abcdef1234567890abcdef12345678",
      "topics": [
        "0x1234567890abcdef1234567890abcdef1234567890abcdef1234567890abcdef"
      ]
    }
  ],
  "id": 1
}

200

Filter ID created successfully

{
  "jsonrpc": "2.0",
  "id": 1,
  "result": "0x16"
}