curl --request GET \
  --url https://api.metronome.com/v1/customers/{customer_id}/invoices/{invoice_id} \
  --header 'Authorization: Bearer <token>'

import requests

url = "https://api.metronome.com/v1/customers/{customer_id}/invoices/{invoice_id}"

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

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

print(response.text)

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

fetch('https://api.metronome.com/v1/customers/{customer_id}/invoices/{invoice_id}', 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.metronome.com/v1/customers/{customer_id}/invoices/{invoice_id}",
  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.metronome.com/v1/customers/{customer_id}/invoices/{invoice_id}"

	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.metronome.com/v1/customers/{customer_id}/invoices/{invoice_id}")
  .header("Authorization", "Bearer <token>")
  .asString();

require 'uri'
require 'net/http'

url = URI("https://api.metronome.com/v1/customers/{customer_id}/invoices/{invoice_id}")

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": {
    "id": "6a37bb88-8538-48c5-b37b-a41c836328bd",
    "customer_id": "617e39d8-68f4-4592-b8d2-c2bf26a76989",
    "type": "USAGE",
    "start_timestamp": "2021-01-01T00:00:00Z",
    "end_timestamp": "2021-02-01T00:00:00Z",
    "credit_type": {
      "id": "2714e483-4ff1-48e4-9e25-ac732e8f24f2",
      "name": "USD (cents)"
    },
    "contract_id": "9de042a1-b955-43ce-9ab4-e3c2004570d1",
    "line_items": [
      {
        "credit_type": {
          "id": "2714e483-4ff1-48e4-9e25-ac732e8f24f2",
          "name": "USD (cents)"
        },
        "name": "CPU hours",
        "type": "usage",
        "quantity": 1488,
        "total": 14392,
        "product_id": "5c1f40cd-9ff8-4e90-ae53-5f81b0e9d1e8"
      }
    ],
    "total": 14392,
    "status": "FINALIZED"
  }
}

{
  "message": "<string>"
}