curl --request GET \
  --url https://sandboxapi.kelviq.com/api/v1/invoices/{invoiceId}/ \
  --header 'Authorization: Bearer <token>'

import requests

url = "https://sandboxapi.kelviq.com/api/v1/invoices/{invoiceId}/"

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

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

print(response.text)

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

fetch('https://sandboxapi.kelviq.com/api/v1/invoices/{invoiceId}/', 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://sandboxapi.kelviq.com/api/v1/invoices/{invoiceId}/",
  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://sandboxapi.kelviq.com/api/v1/invoices/{invoiceId}/"

	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://sandboxapi.kelviq.com/api/v1/invoices/{invoiceId}/")
  .header("Authorization", "Bearer <token>")
  .asString();

require 'uri'
require 'net/http'

url = URI("https://sandboxapi.kelviq.com/api/v1/invoices/{invoiceId}/")

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

{
  "id": "INV-20260801101420-Q7M2P",
  "customer": {
    "customerId": "geo-jacob",
    "name": "Geo Jacob",
    "email": "geojacob@example.com"
  },
  "product": {
    "id": "df398021-477b-4e67-972d-c763a2f2ba7b",
    "name": "ParityDeals"
  },
  "status": "PAID",
  "paidAt": "2026-08-01T10:14:22Z",
  "amountSubtotal": "40.00",
  "amountDiscount": "0.00",
  "amountTax": "0.00",
  "amountTotal": "40.00",
  "currency": "USD",
  "amountSubtotalUnits": 4000,
  "amountDiscountUnits": 0,
  "amountTaxUnits": 0,
  "amountTotalUnits": 4000,
  "currencySymbol": "$",
  "billingAddress": {
    "line1": null,
    "line2": null,
    "city": null,
    "state": null,
    "postalCode": "680121",
    "country": "IN"
  },
  "plan": {
    "name": "Premium",
    "identifier": "premium1"
  },
  "billingType": "SUBSCRIPTION",
  "license": [],
  "subscription": {
    "id": "a2951973-aca5-408d-bd9c-1d86827ed463",
    "status": "active",
    "amount": "40.00",
    "currency": "usd",
    "interval": "month",
    "currencySymbol": "$",
    "nextInvoiceDate": "2026-09-01T10:14:22Z"
  },
  "paymentId": null,
  "paymentLink": "https://portal.kelviq.com/acme-inc/pay/aW5fMVJwb1pvU0JzdEN6eW9jUzdpUG1pdGgz",
  "createdOn": "2026-08-01T10:14:20Z",
  "modifiedOn": "2026-08-01T10:14:22Z",
  "dueDate": null,
  "attemptCount": 1,
  "nextPaymentAttempt": null,
  "failureDetails": null,
  "customFieldsData": {},
  "details": {
    "lines": [
      {
        "name": "Premium",
        "description": "Premium plan - monthly",
        "quantity": 1,
        "unitPrice": "40.00",
        "subTotal": "40.00"
      }
    ],
    "amountDue": "0",
    "appliedBalance": "0",
    "startingBalance": "0",
    "endingBalance": "0"
  },
  "paymentMethod": {
    "paymentMethodType": "card",
    "paymentMethodName": "visa",
    "last4": "4242"
  }
}