Get compact block filters.

GET

https://optimism-index.nownodes.io/api/v2/block-filters

Authorizations

ApiKeyAuthApiKeyAuth

api-key string

NOWNodes API key passed in the api-key header.

Returns compact block filters for the script type configured on this Blockbook instance. Provide either lastN or a from/to range. When to is omitted for a range, the current best height is used.

Compact block filters are a feature of UTXO networks. On this network the endpoint returns an error.

Load estimate: High for wide ranges; work and payload grow linearly with the number of requested filters.

Parameters

scriptTypestringrequiredquery

Script type configured for block filters on this instance, for example taproot.

lastNinteger>= 1query

Return filters for the last N blocks.

frominteger>= 0query

First block height in the requested range.

tointeger>= 0query

Last block height in the requested range. Defaults to the current best height when omitted.

Response

200OK

Block filters keyed by block height.

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.

default

Public API error.

Get compact block filters.

curl -X GET 'https://optimism-index.nownodes.io/api/v2/block-filters/'

const response = await fetch('https://optimism-index.nownodes.io/api/v2/block-filters/', {
  method: 'GET',
});

const data = await response.json();

require 'net/http'
require 'json'

uri = URI('https://optimism-index.nownodes.io/api/v2/block-filters/')
request = Net::HTTP::Get.new(uri)

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

import requests

response = requests.get('https://optimism-index.nownodes.io/api/v2/block-filters/')
data = response.json()

const response = await fetch('https://optimism-index.nownodes.io/api/v2/block-filters/', {
  method: 'GET',
});

const data = await response.json();

const endpoint = "https://optimism-index.nownodes.io/api/v2/block-filters/";
const apiKey = "YOUR_API_KEY";

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

  return response.json();
}

const result = await nownodesRequest({});
console.log(result);

const response = await fetch('https://optimism-index.nownodes.io/api/v2/block-filters/', {
  method: 'GET',
});

const data = await response.json();

import requests

response = requests.get('https://optimism-index.nownodes.io/api/v2/block-filters/')
data = response.json()

require 'net/http'
require 'json'

uri = URI('https://optimism-index.nownodes.io/api/v2/block-filters/')
request = Net::HTTP::Get.new(uri)

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

{
  "P": 19,
  "M": 784931,
  "zeroedKey": false,
  "blockFilters": {}
}

Unknown API_key

Method Not Allowed

Missing API_key

{
  "error": "Missing parameters"
}