Filter event logs

POST

https://meter.nownodes.io/logs/event

Authorizations

ApiKeyAuthApiKeyAuth

api-key string

NOWNodes API key passed in the api-key header.

Event logs are produced by OP_LOG in EVM.

Body

application/json

rangeFilterRange

defines the range to filter in. e.g.

Copied!

{
  "range": {
    "unit": "block",
    "from": 10,
    "to": 1000
  }
}

refers to the range from block 10 to block 1000. null stands for the full range.

Show child attributes

unitstringblocktime

defines the unit of from and to. block means block number, time means block timestamp, default to block.

frominteger<uint64>

tointeger<uint64>

optionsFilterOptions

pass these parameters if you need filtered results paged. e.g.

Copied!

{
  "options": {
    "offset": 0,
    "limit": 10   
  }
}

the above refers that page offset is 0, and the page size is 10. pass options null if you don't need to demand paging.

Show child attributes

offsetinteger

offset in matched record set

limitinteger

limit of records to output

criteriaSetArray<EventCriteria>

Show child attributes

addressstring

address of event emitter

topic0string

topic1string

topic2string

topic3string

topic4string

orderstringascdesc

order of filters, defaults to asc

Response

200OK

Filter event logs

curl -X POST 'https://meter.nownodes.io/logs/event' \
  -H 'Content-Type: application/json' \
  -d '{
    "range": {
      "unit": "block",
      "from": 0,
      "to": 100000
    },
    "options": {
      "offset": 0,
      "limit": 10
    },
    "criteriaSet": [
      {
        "address": "0xe59d475abe695c7f67a8a2321f33a856b0b4c71d",
        "topic0": "0xddf252ad1be2c89b69c2b068fc378daa952ba7f163c4a11628f55a4df523b3ef"
      }
    ],
    "order": "asc"
  }'

const response = await fetch('https://meter.nownodes.io/logs/event', {
  method: 'POST',
  headers: {
    'Content-Type': 'application/json',
  },
  body: JSON.stringify({
      "range": {
        "unit": "block",
        "from": 0,
        "to": 100000
      },
      "options": {
        "offset": 0,
        "limit": 10
      },
      "criteriaSet": [
        {
          "address": "0xe59d475abe695c7f67a8a2321f33a856b0b4c71d",
          "topic0": "0xddf252ad1be2c89b69c2b068fc378daa952ba7f163c4a11628f55a4df523b3ef"
        }
      ],
      "order": "asc"
    }),
});

const data = await response.json();

require 'net/http'
require 'json'

uri = URI('https://meter.nownodes.io/logs/event')
request = Net::HTTP::Post.new(uri)
request['Content-Type'] = 'application/json'
request.body = '{
    "range": {
      "unit": "block",
      "from": 0,
      "to": 100000
    },
    "options": {
      "offset": 0,
      "limit": 10
    },
    "criteriaSet": [
      {
        "address": "0xe59d475abe695c7f67a8a2321f33a856b0b4c71d",
        "topic0": "0xddf252ad1be2c89b69c2b068fc378daa952ba7f163c4a11628f55a4df523b3ef"
      }
    ],
    "order": "asc"
  }'

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

import requests

payload = {
  "range": {
    "unit": "block",
    "from": 0,
    "to": 100000
  },
  "options": {
    "offset": 0,
    "limit": 10
  },
  "criteriaSet": [
    {
      "address": "0xe59d475abe695c7f67a8a2321f33a856b0b4c71d",
      "topic0": "0xddf252ad1be2c89b69c2b068fc378daa952ba7f163c4a11628f55a4df523b3ef"
    }
  ],
  "order": "asc"
}

response = requests.post('https://meter.nownodes.io/logs/event', json=payload)
data = response.json()

const response = await fetch('https://meter.nownodes.io/logs/event', {
  method: 'POST',
  headers: {
    'Content-Type': 'application/json',
  },
  body: JSON.stringify({
      "range": {
        "unit": "block",
        "from": 0,
        "to": 100000
      },
      "options": {
        "offset": 0,
        "limit": 10
      },
      "criteriaSet": [
        {
          "address": "0xe59d475abe695c7f67a8a2321f33a856b0b4c71d",
          "topic0": "0xddf252ad1be2c89b69c2b068fc378daa952ba7f163c4a11628f55a4df523b3ef"
        }
      ],
      "order": "asc"
    }),
});

const data = await response.json();

const endpoint = "https://meter.nownodes.io/logs/event";
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({
    "range": {
      "unit": "block",
      "from": 0,
      "to": 100000
    },
    "options": {
      "offset": 0,
      "limit": 10
    },
    "criteriaSet": [
      {
        "address": "0xe59d475abe695c7f67a8a2321f33a856b0b4c71d",
        "topic0": "0xddf252ad1be2c89b69c2b068fc378daa952ba7f163c4a11628f55a4df523b3ef"
      }
    ],
    "order": "asc"
  });
console.log(result);

const response = await fetch('https://meter.nownodes.io/logs/event', {
  method: 'POST',
  headers: {
    'Content-Type': 'application/json',
  },
  body: JSON.stringify({
      "range": {
        "unit": "block",
        "from": 0,
        "to": 100000
      },
      "options": {
        "offset": 0,
        "limit": 10
      },
      "criteriaSet": [
        {
          "address": "0xe59d475abe695c7f67a8a2321f33a856b0b4c71d",
          "topic0": "0xddf252ad1be2c89b69c2b068fc378daa952ba7f163c4a11628f55a4df523b3ef"
        }
      ],
      "order": "asc"
    }),
});

const data = await response.json();

import requests

payload = {
  "range": {
    "unit": "block",
    "from": 0,
    "to": 100000
  },
  "options": {
    "offset": 0,
    "limit": 10
  },
  "criteriaSet": [
    {
      "address": "0xe59d475abe695c7f67a8a2321f33a856b0b4c71d",
      "topic0": "0xddf252ad1be2c89b69c2b068fc378daa952ba7f163c4a11628f55a4df523b3ef"
    }
  ],
  "order": "asc"
}

response = requests.post('https://meter.nownodes.io/logs/event', json=payload)
data = response.json()

require 'net/http'
require 'json'

uri = URI('https://meter.nownodes.io/logs/event')
request = Net::HTTP::Post.new(uri)
request['Content-Type'] = 'application/json'
request.body = '{
    "range": {
      "unit": "block",
      "from": 0,
      "to": 100000
    },
    "options": {
      "offset": 0,
      "limit": 10
    },
    "criteriaSet": [
      {
        "address": "0xe59d475abe695c7f67a8a2321f33a856b0b4c71d",
        "topic0": "0xddf252ad1be2c89b69c2b068fc378daa952ba7f163c4a11628f55a4df523b3ef"
      }
    ],
    "order": "asc"
  }'

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

Request Body

{
  "range": {
    "unit": "block",
    "from": 0,
    "to": 100000
  },
  "options": {
    "offset": 0,
    "limit": 10
  },
  "criteriaSet": [
    {
      "address": "0xe59d475abe695c7f67a8a2321f33a856b0b4c71d",
      "topic0": "0xddf252ad1be2c89b69c2b068fc378daa952ba7f163c4a11628f55a4df523b3ef"
    }
  ],
  "order": "asc"
}

200

[
  {
    "address": "0x7567d83b7b8d80addcb281a71d54fc7b3364ffed",
    "topics": [
      "0x4de71f2d588aa8a1ea00fe8312d92966da424d9939a511fc0be81e65fad52af8"
    ],
    "data": "0x4de71f2d588aa8a1ea00fe8312d92966da424d9939a511fc0be81e65fad52af8",
    "meta": {
      "blockID": "0x0004f6cc88bb4626a92907718e82f255b8fa511453a78e8797eb8cea3393b215",
      "blockNumber": 325324,
      "blockTimestamp": 1533267900,
      "txID": "0x284bba50ef777889ff1a367ed0b38d5e5626714477c40de38d71cedd6f9fa477",
      "txOrigin": "0xdb4027477b2a8fe4c83c6dafe7f86678bb1b8a8d"
    }
  }
]