curl --request GET \
  --url https://api.provider.fiskil.com/v1/energy/customer/{customerId}/accounts/{accountId}/billing \
  --header 'Authorization: Bearer <token>'

import requests

url = "https://api.provider.fiskil.com/v1/energy/customer/{customerId}/accounts/{accountId}/billing"

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

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

print(response.text)

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

fetch('https://api.provider.fiskil.com/v1/energy/customer/{customerId}/accounts/{accountId}/billing', 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.provider.fiskil.com/v1/energy/customer/{customerId}/accounts/{accountId}/billing",
  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.provider.fiskil.com/v1/energy/customer/{customerId}/accounts/{accountId}/billing"

	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.provider.fiskil.com/v1/energy/customer/{customerId}/accounts/{accountId}/billing")
  .header("Authorization", "Bearer <token>")
  .asString();

require 'uri'
require 'net/http'

url = URI("https://api.provider.fiskil.com/v1/energy/customer/{customerId}/accounts/{accountId}/billing")

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

{
  "data": {
    "transactions": [
      {
        "accountId": "019a0a0b-6bff-7952-99c7-73c8c4967655",
        "usage": {
          "amount": "120.00",
          "adjustments": [
            {
              "amount": "-10.00",
              "description": "Meter read correction"
            }
          ],
          "isEstimate": false,
          "endDate": "2025-10-31",
          "usage": 72.13,
          "servicePointId": "019a0a0b-c27b-7fd3-bd84-9bead0e73711",
          "invoiceNumber": "125",
          "description": "Usage fees Q3",
          "measureUnit": "KWH",
          "calculationFactors": [
            {
              "type": "DLF",
              "value": 6.027456183070403
            }
          ],
          "timeOfUseType": "ALL_DAY",
          "startDate": "2025-09-01"
        },
        "gst": "12.00",
        "transactionUType": "usage",
        "executionDateTime": "2025-11-01T00:00:00"
      },
      {
        "accountId": "019a0a0b-6bff-7952-99c7-73c8c4967655",
        "payment": {
          "amount": "100.00",
          "method": "DIRECT_DEBIT"
        },
        "transactionUType": "payment",
        "executionDateTime": "2025-09-010T10:25:00"
      }
    ]
  },
  "meta": {
    "totalRecords": 2,
    "totalPages": 1
  },
  "links": {
    "first": "page=1&page-size=25&oldest-date=2023-04-24",
    "last": "page=4&page-size=25&oldest-date=2023-04-24",
    "next": "page=3&page-size=25&oldest-date=2023-04-24",
    "prev": "page=1&page-size=25&oldest-date=2023-04-24"
  }
}

{
  "error": "Customer not found"
}