Get Logs

POST

https://eth-sepolia.nownodes.io/

Authorizations

ApiKeyAuthApiKeyAuth

api-key string

NOWNodes API key passed in the api-key header.

Returns an array of logs that match the filter criteria specified in the params. The filter object supports filtering by block range, addresses, and topics.

Body

application/json

Returns an array of logs that match the filter criteria specified in the params. The filter object supports filtering by block range, addresses, and topics.

Request payload for Get Logs.

jsonrpcstringrequired

JSON-RPC version.

methodstringrequired

JSON-RPC method name.

paramsArray<object>required

Parameters array with one element: the filter object.

Show child attributes

fromBlockstring

Starting block number (hex string) or "earliest", "latest", "pending".

toBlockstring

Ending block number (hex string) or "earliest", "latest", "pending".

addressstring | Array<string>

Contract address or list of addresses from which logs should originate.

topicsarray

Array of topic filters. Each topic can be a string, null, or an array of strings for OR filtering.

idintegerrequired

Request identifier.

Response

200OK

Array of log objects matching the filter

401Unauthorized

Unauthorized: API key is present but rejected by the NOWNodes gateway.

405Method Not Allowed

Method Not Allowed. Returned by the NOWNodes gateway for malformed or unsupported gateway-level requests.

422Unprocessable Entity

Missing API key. The NOWNodes gateway returns plain text for this error.

500Internal Server Error

Upstream node or gateway error.

Get Logs

curl -X POST 'https://eth-sepolia.nownodes.io/' \
  -H 'Content-Type: application/json' \
  -d '{
    "jsonrpc": "2.0",
    "method": "eth_getLogs",
    "params": [
      {
        "fromBlock": "0x1b4",
        "toBlock": "0x1f4",
        "address": "0x1234567890abcdef1234567890abcdef12345678",
        "topics": [
          "0xddf252ad1be2c89b69c2b068fc378daa952ba7f163c4a11628f55a4df523b3ef",
          null,
          [
            "0x000000000000000000000000a7d9ddbe1f17865597fbd27ec712455208b6b76d",
            "0x000000000000000000000000bb9bc244d798123fde783fcc1c72d3bb8c189413"
          ]
        ]
      }
    ],
    "id": 1
  }'

import { JsonRpcProvider } from "ethers";

const provider = new JsonRpcProvider("https://eth-sepolia.nownodes.io/");
const result = await provider.send("eth_getLogs", [
  {
    "fromBlock": "0x1b4",
    "toBlock": "0x1f4",
    "address": "0x1234567890abcdef1234567890abcdef12345678",
    "topics": [
      "0xddf252ad1be2c89b69c2b068fc378daa952ba7f163c4a11628f55a4df523b3ef",
      null,
      [
        "0x000000000000000000000000a7d9ddbe1f17865597fbd27ec712455208b6b76d",
        "0x000000000000000000000000bb9bc244d798123fde783fcc1c72d3bb8c189413"
      ]
    ]
  }
]);
console.log(result);

require 'eth'
require 'json'
require 'net/http'

uri = URI('https://eth-sepolia.nownodes.io/')
request = Net::HTTP::Post.new(uri)
request['Content-Type'] = 'application/json'
request.body = '{
  "jsonrpc": "2.0",
  "method": "eth_getLogs",
  "params": [
    {
      "fromBlock": "0x1b4",
      "toBlock": "0x1f4",
      "address": "0x1234567890abcdef1234567890abcdef12345678",
      "topics": [
        "0xddf252ad1be2c89b69c2b068fc378daa952ba7f163c4a11628f55a4df523b3ef",
        null,
        [
          "0x000000000000000000000000a7d9ddbe1f17865597fbd27ec712455208b6b76d",
          "0x000000000000000000000000bb9bc244d798123fde783fcc1c72d3bb8c189413"
        ]
      ]
    }
  ],
  "id": 1
}'

response = Net::HTTP.start(uri.hostname, uri.port, use_ssl: true) do |http|
  http.request(request)
end

puts JSON.parse(response.body)

from web3 import Web3

w3 = Web3(Web3.HTTPProvider("https://eth-sepolia.nownodes.io/"))
response = w3.provider.make_request("eth_getLogs", [
  {
    "fromBlock": "0x1b4",
    "toBlock": "0x1f4",
    "address": "0x1234567890abcdef1234567890abcdef12345678",
    "topics": [
      "0xddf252ad1be2c89b69c2b068fc378daa952ba7f163c4a11628f55a4df523b3ef",
      null,
      [
        "0x000000000000000000000000a7d9ddbe1f17865597fbd27ec712455208b6b76d",
        "0x000000000000000000000000bb9bc244d798123fde783fcc1c72d3bb8c189413"
      ]
    ]
  }
])
print(response)

import { createPublicClient, http } from "viem";

const client = createPublicClient({
  transport: http("https://eth-sepolia.nownodes.io/"),
});

const result = await client.request({
  method: "eth_getLogs",
  params: [
  {
    "fromBlock": "0x1b4",
    "toBlock": "0x1f4",
    "address": "0x1234567890abcdef1234567890abcdef12345678",
    "topics": [
      "0xddf252ad1be2c89b69c2b068fc378daa952ba7f163c4a11628f55a4df523b3ef",
      null,
      [
        "0x000000000000000000000000a7d9ddbe1f17865597fbd27ec712455208b6b76d",
        "0x000000000000000000000000bb9bc244d798123fde783fcc1c72d3bb8c189413"
      ]
    ]
  }
],
});

console.log(result);

const endpoint = "https://eth-sepolia.nownodes.io/";
const apiKey = "YOUR_API_KEY";

async function nownodesRequest(payload) {
  const response = await fetch(endpoint, {
    method: "POST",
    headers: {
      "Content-Type": "application/json",
      "api-key": apiKey,
    },
    body: JSON.stringify(payload),
  });

  return response.json();
}

const result = await nownodesRequest({ jsonrpc: "2.0", method: "eth_getLogs", params: [
  {
    "fromBlock": "0x1b4",
    "toBlock": "0x1f4",
    "address": "0x1234567890abcdef1234567890abcdef12345678",
    "topics": [
      "0xddf252ad1be2c89b69c2b068fc378daa952ba7f163c4a11628f55a4df523b3ef",
      null,
      [
        "0x000000000000000000000000a7d9ddbe1f17865597fbd27ec712455208b6b76d",
        "0x000000000000000000000000bb9bc244d798123fde783fcc1c72d3bb8c189413"
      ]
    ]
  }
], id: 1 });
console.log(result);

const response = await fetch('https://eth-sepolia.nownodes.io/', {
  method: 'POST',
  headers: {
    'Content-Type': 'application/json',
  },
  body: JSON.stringify({
      "jsonrpc": "2.0",
      "method": "eth_getLogs",
      "params": [
        {
          "fromBlock": "0x1b4",
          "toBlock": "0x1f4",
          "address": "0x1234567890abcdef1234567890abcdef12345678",
          "topics": [
            "0xddf252ad1be2c89b69c2b068fc378daa952ba7f163c4a11628f55a4df523b3ef",
            null,
            [
              "0x000000000000000000000000a7d9ddbe1f17865597fbd27ec712455208b6b76d",
              "0x000000000000000000000000bb9bc244d798123fde783fcc1c72d3bb8c189413"
            ]
          ]
        }
      ],
      "id": 1
    }),
});

const data = await response.json();

import requests

payload = {
  "jsonrpc": "2.0",
  "method": "eth_getLogs",
  "params": [
    {
      "fromBlock": "0x1b4",
      "toBlock": "0x1f4",
      "address": "0x1234567890abcdef1234567890abcdef12345678",
      "topics": [
        "0xddf252ad1be2c89b69c2b068fc378daa952ba7f163c4a11628f55a4df523b3ef",
        null,
        [
          "0x000000000000000000000000a7d9ddbe1f17865597fbd27ec712455208b6b76d",
          "0x000000000000000000000000bb9bc244d798123fde783fcc1c72d3bb8c189413"
        ]
      ]
    }
  ],
  "id": 1
}

response = requests.post('https://eth-sepolia.nownodes.io/', json=payload)
data = response.json()

require 'net/http'
require 'json'

uri = URI('https://eth-sepolia.nownodes.io/')
request = Net::HTTP::Post.new(uri)
request['Content-Type'] = 'application/json'
request.body = '{
    "jsonrpc": "2.0",
    "method": "eth_getLogs",
    "params": [
      {
        "fromBlock": "0x1b4",
        "toBlock": "0x1f4",
        "address": "0x1234567890abcdef1234567890abcdef12345678",
        "topics": [
          "0xddf252ad1be2c89b69c2b068fc378daa952ba7f163c4a11628f55a4df523b3ef",
          null,
          [
            "0x000000000000000000000000a7d9ddbe1f17865597fbd27ec712455208b6b76d",
            "0x000000000000000000000000bb9bc244d798123fde783fcc1c72d3bb8c189413"
          ]
        ]
      }
    ],
    "id": 1
  }'

response = Net::HTTP.start(uri.hostname, uri.port, use_ssl: true) { |http| http.request(request) }
data = JSON.parse(response.body)

Request Body

{
  "jsonrpc": "2.0",
  "method": "eth_getLogs",
  "params": [
    {
      "fromBlock": "0x1b4",
      "toBlock": "0x1f4",
      "address": "0x1234567890abcdef1234567890abcdef12345678",
      "topics": [
        "0xddf252ad1be2c89b69c2b068fc378daa952ba7f163c4a11628f55a4df523b3ef",
        null,
        [
          "0x000000000000000000000000a7d9ddbe1f17865597fbd27ec712455208b6b76d",
          "0x000000000000000000000000bb9bc244d798123fde783fcc1c72d3bb8c189413"
        ]
      ]
    }
  ],
  "id": 1
}

{
  "jsonrpc": "2.0",
  "id": 1,
  "result": [
    {
      "address": "0x7f57966c2c4af94bc95bd7803de2c24d4275ced6",
      "topics": [
        "0xddf252ad1be2c89b69c2b068fc378daa952ba7f163c4a11628f55a4df523b3ef",
        "0x00000000000000000000000057ef1f0f7c3a9f51135d8d17dbbcf5ee2cadda20",
        "0x000000000000000000000000611f9e9d8a0049322265e94ae8379e760ec431f4"
      ],
      "data": "0x0000000000000000000000000000000000000000000000000de0b6b3a7640000",
      "blockNumber": "0xaa78d0",
      "transactionHash": "0xdeeaeafccae3044329a48217ed1aa32e54dcb7c083a776c392451ee1e54dfdda",
      "transactionIndex": "0x1",
      "blockHash": "0x4889464db49c4f8a2bb9efce57060faffaa6e2e2e442b0db3ae64469cd91d623",
      "blockTimestamp": "0x6a4399ac",
      "logIndex": "0x0",
      "removed": false
    },
    {
      "address": "0x7f57966c2c4af94bc95bd7803de2c24d4275ced6",
      "topics": [
        "0xddf252ad1be2c89b69c2b068fc378daa952ba7f163c4a11628f55a4df523b3ef",
        "0x000000000000000000000000bc753396cc214acc6c49ca28969d19e1a7d36730",
        "0x000000000000000000000000611f9e9d8a0049322265e94ae8379e760ec431f4"
      ],
      "data": "0x0000000000000000000000000000000000000000000000000de0b6b3a7640000",
      "blockNumber": "0xaa78d0",
      "transactionHash": "0xda947c82de26bdcd06a5f02437c9c81d6ca98e385cb90256ecef9d2649cd9335",
      "transactionIndex": "0x2",
      "blockHash": "0x4889464db49c4f8a2bb9efce57060faffaa6e2e2e442b0db3ae64469cd91d623",
      "blockTimestamp": "0x6a4399ac",
      "logIndex": "0x2",
      "removed": false
    },
    {
      "address": "0x7f57966c2c4af94bc95bd7803de2c24d4275ced6",
      "topics": [
        "0xddf252ad1be2c89b69c2b068fc378daa952ba7f163c4a11628f55a4df523b3ef",
        "0x0000000000000000000000006685af44827cfd4c96e3f8dabc951b8593a60bc5",
        "0x000000000000000000000000611f9e9d8a0049322265e94ae8379e760ec431f4"
      ],
      "data": "0x0000000000000000000000000000000000000000000000000de0b6b3a7640000",
      "blockNumber": "0xaa78d0",
      "transactionHash": "0xca2e293ad3606aa3a00bc91f5399231080d9cfeba4a28bdee1914ee48ae28728",
      "transactionIndex": "0x3",
      "blockHash": "0x4889464db49c4f8a2bb9efce57060faffaa6e2e2e442b0db3ae64469cd91d623",
      "blockTimestamp": "0x6a4399ac",
      "logIndex": "0x4",
      "removed": false
    }
  ]
}

{
  "jsonrpc": "2.0",
  "id": 1,
  "error": {
    "code": -32602,
    "message": "invalid argument 0: json: cannot unmarshal string into Go value of type filters.input"
  }
}

Unknown API_key

Method Not Allowed

Missing API_key

{
  "jsonrpc": "2.0",
  "id": 1,
  "error": {
    "code": -32602,
    "message": "invalid argument 0: json: cannot unmarshal string into Go value of type filters.input"
  }
}

Documentation

How to migrate to NOWNodes

Get Logs

Authorizations

Body

Response