curl --request GET \
  --url https://api.meetcampfire.com/rev/api/v1/invoices

import requests

url = "https://api.meetcampfire.com/rev/api/v1/invoices"

response = requests.get(url)

print(response.text)

const options = {method: 'GET'};

fetch('https://api.meetcampfire.com/rev/api/v1/invoices', 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.meetcampfire.com/rev/api/v1/invoices",
  CURLOPT_RETURNTRANSFER => true,
  CURLOPT_ENCODING => "",
  CURLOPT_MAXREDIRS => 10,
  CURLOPT_TIMEOUT => 30,
  CURLOPT_HTTP_VERSION => CURL_HTTP_VERSION_1_1,
  CURLOPT_CUSTOMREQUEST => "GET",
]);

$response = curl_exec($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.meetcampfire.com/rev/api/v1/invoices"

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

	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.meetcampfire.com/rev/api/v1/invoices")
  .asString();

require 'uri'
require 'net/http'

url = URI("https://api.meetcampfire.com/rev/api/v1/invoices")

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

request = Net::HTTP::Get.new(url)

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

{
  "count": 123,
  "results": [
    {
      "id": 123,
      "contract": 123,
      "contract_name": "<string>",
      "contract_number": "<string>",
      "invoice": 123,
      "journal_entry": 123,
      "journal_entry_number": "<string>",
      "issue_date": "2023-12-25",
      "lines": [
        {
          "id": 123,
          "invoice": 123,
          "product_name": "",
          "created_at": "2023-11-07T05:31:56Z",
          "last_modified_at": "2023-11-07T05:31:56Z",
          "contract_line": 123,
          "product": 123,
          "description": "<string>",
          "service_start": "2023-12-25",
          "service_end": "2023-12-25",
          "currency": "<string>",
          "quantity": 0,
          "rate": 0,
          "amount": 0
        }
      ],
      "created_at": "2023-11-07T05:31:56Z",
      "last_modified_at": "2023-11-07T05:31:56Z",
      "ordinal": 1073741823,
      "invoice_number": "<string>",
      "due_date": "2023-12-25",
      "payment_term": 123,
      "bill_to_snapshot": "<unknown>",
      "currency": "<string>",
      "total_amount": 0
    }
  ],
  "next": "http://api.example.org/accounts/?offset=400&limit=100",
  "previous": "http://api.example.org/accounts/?offset=200&limit=100"
}