List output roots.

Retrieves a paginated list of output roots.

GET /{chain_id}/api/v2/optimism/output-roots

List output roots.

cURL

curl --request GET \
  --url https://api.blockscout.com/{chain_id}/api/v2/optimism/output-roots \
  --header 'Authorization: Bearer <token>'

import requests

url = "https://api.blockscout.com/{chain_id}/api/v2/optimism/output-roots"

headers = {"Authorization": "Bearer <token>"}

response = requests.get(url, headers=headers)

print(response.text)

const options = {method: 'GET', headers: {Authorization: 'Bearer <token>'}};

fetch('https://api.blockscout.com/{chain_id}/api/v2/optimism/output-roots', options)
  .then(res => res.json())
  .then(res => console.log(res))
  .catch(err => console.error(err));

<?php

$curl = curl_init();

curl_setopt_array($curl, [
  CURLOPT_URL => "https://api.blockscout.com/{chain_id}/api/v2/optimism/output-roots",
  CURLOPT_RETURNTRANSFER => true,
  CURLOPT_ENCODING => "",
  CURLOPT_MAXREDIRS => 10,
  CURLOPT_TIMEOUT => 30,
  CURLOPT_HTTP_VERSION => CURL_HTTP_VERSION_1_1,
  CURLOPT_CUSTOMREQUEST => "GET",
  CURLOPT_HTTPHEADER => [
    "Authorization: Bearer <token>"
  ],
]);

$response = curl_exec($curl);
$err = curl_error($curl);

curl_close($curl);

if ($err) {
  echo "cURL Error #:" . $err;
} else {
  echo $response;
}

package main

import (
	"fmt"
	"net/http"
	"io"
)

func main() {

	url := "https://api.blockscout.com/{chain_id}/api/v2/optimism/output-roots"

	req, _ := http.NewRequest("GET", url, nil)

	req.Header.Add("Authorization", "Bearer <token>")

	res, _ := http.DefaultClient.Do(req)

	defer res.Body.Close()
	body, _ := io.ReadAll(res.Body)

	fmt.Println(string(body))

}

HttpResponse<String> response = Unirest.get("https://api.blockscout.com/{chain_id}/api/v2/optimism/output-roots")
  .header("Authorization", "Bearer <token>")
  .asString();

require 'uri'
require 'net/http'

url = URI("https://api.blockscout.com/{chain_id}/api/v2/optimism/output-roots")

http = Net::HTTP.new(url.host, url.port)
http.use_ssl = true

request = Net::HTTP::Get.new(url)
request["Authorization"] = 'Bearer <token>'

response = http.request(request)
puts response.read_body

200

{
  "items": [
    {
      "l1_block_number": 123,
      "l1_timestamp": "2023-11-07T05:31:56Z",
      "l1_transaction_hash": "<string>",
      "l2_block_number": 123,
      "l2_output_index": 123,
      "output_root": "<string>"
    }
  ],
  "next_page_params": {
    "index": 8829
  }
}

{
  "errors": [
    {
      "detail": "null value where string expected",
      "source": {
        "pointer": "/data/attributes/petName"
      },
      "title": "Invalid value"
    }
  ]
}

Authorizations

bearerAuthapiKeyAuth

Authorization · string · header · required

API key passed as a Bearer token in the Authorization header.

Path Parameters

chain_id · string · required

The ID of the blockchain

Query Parameters

items_count · integer

Number of items per page

Required range: x >= 1

index · integer

Item index for paging

Response

200

application/json

List of output roots.

items · OutputRoot · object[] · required

Show child attributes

next_page_params · object | null · required

Example:

{ "index": 8829 }