curl --request GET \
  --url https://spi.sandbox.lerian.net/api/v1/spi/operations/{operationId}/timeline \
  --header 'Authorization: Bearer <token>'

import requests

url = "https://spi.sandbox.lerian.net/api/v1/spi/operations/{operationId}/timeline"

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

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

print(response.text)

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

fetch('https://spi.sandbox.lerian.net/api/v1/spi/operations/{operationId}/timeline', 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://spi.sandbox.lerian.net/api/v1/spi/operations/{operationId}/timeline",
  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://spi.sandbox.lerian.net/api/v1/spi/operations/{operationId}/timeline"

	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://spi.sandbox.lerian.net/api/v1/spi/operations/{operationId}/timeline")
  .header("Authorization", "Bearer <token>")
  .asString();

require 'uri'
require 'net/http'

url = URI("https://spi.sandbox.lerian.net/api/v1/spi/operations/{operationId}/timeline")

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

{
  "items": [
    {
      "category": "<string>",
      "id": "<string>",
      "occurredAt": "2026-06-14T12:00:00Z",
      "operationId": "<string>",
      "actorId": "<string>",
      "actorType": "<string>",
      "createdAt": "2026-06-14T12:00:00Z",
      "evidenceMetadata": {},
      "failureCategory": "<string>",
      "messageId": "550e8400-e29b-41d4-a716-446655440000",
      "newState": "<string>",
      "railReference": "E1234567820260614ABCDEFGHIJKLMNO",
      "reason": "<string>",
      "reasonCode": "<string>",
      "source": "<string>",
      "summary": "<string>"
    }
  ],
  "limit": 123,
  "nextCursor": "<string>"
}

{
  "code": "ERR-0001",
  "detail": "Property foo is required but is missing.",
  "errors": [
    {
      "location": "<string>",
      "message": "<string>",
      "value": "<unknown>"
    }
  ],
  "instance": "https://example.com/error-log/abc123",
  "status": 400,
  "title": "Bad Request",
  "type": "https://example.com/errors/example"
}