curl --request GET \
  --url https://api.jtl-cloud.com/erp/invoices/{invoiceId} \
  --header 'Authorization: Bearer <token>' \
  --header 'x-tenant-id: <x-tenant-id>'

import requests

url = "https://api.jtl-cloud.com/erp/invoices/{invoiceId}"

headers = {
    "x-tenant-id": "<x-tenant-id>",
    "Authorization": "Bearer <token>"
}

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

print(response.text)

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

fetch('https://api.jtl-cloud.com/erp/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://api.jtl-cloud.com/erp/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>",
    "x-tenant-id: <x-tenant-id>"
  ],
]);

$response = curl_exec($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.jtl-cloud.com/erp/invoices/{invoiceId}"

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

	req.Header.Add("x-tenant-id", "<x-tenant-id>")
	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.jtl-cloud.com/erp/invoices/{invoiceId}")
  .header("x-tenant-id", "<x-tenant-id>")
  .header("Authorization", "Bearer <token>")
  .asString();

require 'uri'
require 'net/http'

url = URI("https://api.jtl-cloud.com/erp/invoices/{invoiceId}")

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

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

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

{
  "Id": 123,
  "Number": "A1004465",
  "ExternalNumber": "D456-64894-132",
  "CompanyId": 123,
  "DepartureCountry": {
    "CountryISO": "DE",
    "State": "Berlin",
    "CurrencyIso": "TODO",
    "CurrencyFactor": 1.37
  },
  "CustomerId": 123,
  "BillingAddress": {
    "Id": 123,
    "Company": "Sportbedarf Sommer",
    "Company2": "Innovation Division",
    "FormOfAddress": "Mr.",
    "Title": "Dr.",
    "FirstName": "John",
    "LastName": "Doe",
    "Street": "Main St. 123",
    "Address2": "Floor 5, Apt 302",
    "PostalCode": "12345",
    "City": "Example City",
    "State": "Example State",
    "CountryIso": "DE",
    "VatID": "DE123456789",
    "PhoneNumber": "+49 1234 445556661",
    "MobilePhoneNumber": "+49 160 123 4567",
    "EmailAddress": "example@email.com",
    "Fax": "+49 1234 4455566615"
  },
  "ShipmentAddress": {
    "Id": 123,
    "Company": "Sportbedarf Sommer",
    "Company2": "Innovation Division",
    "FormOfAddress": "Mr.",
    "Title": "Dr.",
    "FirstName": "John",
    "LastName": "Doe",
    "Street": "Main St. 123",
    "Address2": "Floor 5, Apt 302",
    "PostalCode": "12345",
    "City": "Example City",
    "State": "Example State",
    "CountryIso": "DE",
    "VatID": "DE123456789",
    "PhoneNumber": "+49 1234 445556661",
    "MobilePhoneNumber": "+49 160 123 4567",
    "EmailAddress": "example@email.com",
    "Fax": "+49 1234 4455566615"
  },
  "InvoiceDate": "2023-02-01T12:45:00.0000000+00:00",
  "InvoicePaymentDetails": {
    "PaymentMethodId": 123,
    "TotalGrossAmount": 19.99,
    "CurrencyIso": "TODO",
    "CurrencyFactor": 1.37,
    "StillToPay": 0,
    "PaymentTarget": 0,
    "CashDiscount": 5,
    "CashDiscountDays": 2,
    "StopPaymentRequest": false,
    "DunningLevel": 0,
    "NextDueDate": "2023-02-01T12:45:00.0000000+00:00"
  },
  "ColorcodeId": 123,
  "DunningBlock": false,
  "IsExternalInvoice": false,
  "Comment": "an additional order comment",
  "CustomerComment": "an additional customer comment",
  "IsCancelled": false,
  "LanguageIso": "DE",
  "CancellationDetails": {
    "CancellationReasonId": 123,
    "CancellationComment": "Change of mind (once again); we should consider terminating the customer relationship",
    "Date": "2023-02-01T12:45:00.0000000+00:00"
  }
}

{
  "ErrorCode": "<string>",
  "ValidationErrors": {},
  "Errors": {},
  "ErrorMessage": "<string>",
  "Stacktrace": "<string>"
}