curl --request PATCH \
  --url https://api.meetcampfire.com/rev/api/v1/invoices/{id} \
  --header 'Authorization: <api-key>' \
  --header 'Content-Type: application/json' \
  --data '
{
  "contract": 123,
  "invoice_number": "<string>",
  "issue_date": "2023-12-25",
  "due_date": "2023-12-25",
  "bill_to_snapshot": "<unknown>",
  "currency": "<string>",
  "total_amount": 0
}
'

import requests

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

payload = {
    "contract": 123,
    "invoice_number": "<string>",
    "issue_date": "2023-12-25",
    "due_date": "2023-12-25",
    "bill_to_snapshot": "<unknown>",
    "currency": "<string>",
    "total_amount": 0
}
headers = {
    "Authorization": "<api-key>",
    "Content-Type": "application/json"
}

response = requests.patch(url, json=payload, headers=headers)

print(response.text)

const options = {
  method: 'PATCH',
  headers: {Authorization: '<api-key>', 'Content-Type': 'application/json'},
  body: JSON.stringify({
    contract: 123,
    invoice_number: '<string>',
    issue_date: '2023-12-25',
    due_date: '2023-12-25',
    bill_to_snapshot: '<unknown>',
    currency: '<string>',
    total_amount: 0
  })
};

fetch('https://api.meetcampfire.com/rev/api/v1/invoices/{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.meetcampfire.com/rev/api/v1/invoices/{id}",
  CURLOPT_RETURNTRANSFER => true,
  CURLOPT_ENCODING => "",
  CURLOPT_MAXREDIRS => 10,
  CURLOPT_TIMEOUT => 30,
  CURLOPT_HTTP_VERSION => CURL_HTTP_VERSION_1_1,
  CURLOPT_CUSTOMREQUEST => "PATCH",
  CURLOPT_POSTFIELDS => json_encode([
    'contract' => 123,
    'invoice_number' => '<string>',
    'issue_date' => '2023-12-25',
    'due_date' => '2023-12-25',
    'bill_to_snapshot' => '<unknown>',
    'currency' => '<string>',
    'total_amount' => 0
  ]),
  CURLOPT_HTTPHEADER => [
    "Authorization: <api-key>",
    "Content-Type: application/json"
  ],
]);

$response = curl_exec($curl);
$err = curl_error($curl);

curl_close($curl);

if ($err) {
  echo "cURL Error #:" . $err;
} else {
  echo $response;
}

package main

import (
	"fmt"
	"strings"
	"net/http"
	"io"
)

func main() {

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

	payload := strings.NewReader("{\n  \"contract\": 123,\n  \"invoice_number\": \"<string>\",\n  \"issue_date\": \"2023-12-25\",\n  \"due_date\": \"2023-12-25\",\n  \"bill_to_snapshot\": \"<unknown>\",\n  \"currency\": \"<string>\",\n  \"total_amount\": 0\n}")

	req, _ := http.NewRequest("PATCH", url, payload)

	req.Header.Add("Authorization", "<api-key>")
	req.Header.Add("Content-Type", "application/json")

	res, _ := http.DefaultClient.Do(req)

	defer res.Body.Close()
	body, _ := io.ReadAll(res.Body)

	fmt.Println(string(body))

}

HttpResponse<String> response = Unirest.patch("https://api.meetcampfire.com/rev/api/v1/invoices/{id}")
  .header("Authorization", "<api-key>")
  .header("Content-Type", "application/json")
  .body("{\n  \"contract\": 123,\n  \"invoice_number\": \"<string>\",\n  \"issue_date\": \"2023-12-25\",\n  \"due_date\": \"2023-12-25\",\n  \"bill_to_snapshot\": \"<unknown>\",\n  \"currency\": \"<string>\",\n  \"total_amount\": 0\n}")
  .asString();

require 'uri'
require 'net/http'

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

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

request = Net::HTTP::Patch.new(url)
request["Authorization"] = '<api-key>'
request["Content-Type"] = 'application/json'
request.body = "{\n  \"contract\": 123,\n  \"invoice_number\": \"<string>\",\n  \"issue_date\": \"2023-12-25\",\n  \"due_date\": \"2023-12-25\",\n  \"bill_to_snapshot\": \"<unknown>\",\n  \"currency\": \"<string>\",\n  \"total_amount\": 0\n}"

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

{
  "id": 123,
  "contract": 123,
  "contract_name": "<string>",
  "issue_date": "2023-12-25",
  "lines": [
    {
      "id": 123,
      "invoice": 123,
      "created_at": "2023-11-07T05:31:56Z",
      "last_modified_at": "2023-11-07T05:31:56Z",
      "contract_line": 123,
      "description": "<string>",
      "service_start": "2023-12-25",
      "service_end": "2023-12-25",
      "currency": "<string>",
      "amount": 0
    }
  ],
  "created_at": "2023-11-07T05:31:56Z",
  "last_modified_at": "2023-11-07T05:31:56Z",
  "invoice_number": "<string>",
  "due_date": "2023-12-25",
  "bill_to_snapshot": "<unknown>",
  "currency": "<string>",
  "total_amount": 0
}