curl --request POST \
  --url https://api.meetcampfire.com/coa/api/v1/invoice/{invoice_id}/pay \
  --header 'Content-Type: application/json' \
  --data '
{
  "invoice_id": "58700",
  "transactions": [
    {
      "transaction_id": 14728800,
      "transaction_description": "Payment from Campfire Software Inc",
      "account_id": "2553",
      "account_name": "1100 - Accounts Receivable",
      "amount": 883.33
    }
  ],
  "credit_memos": [
    {
      "credit_memo_id": 4029,
      "credit_memo_number": "CM-0000007",
      "amount": 150,
      "posted_at": "2025-07-25"
    }
  ],
  "empty_transactions": []
}
'

import requests

url = "https://api.meetcampfire.com/coa/api/v1/invoice/{invoice_id}/pay"

payload = {
    "invoice_id": "58700",
    "transactions": [
        {
            "transaction_id": 14728800,
            "transaction_description": "Payment from Campfire Software Inc",
            "account_id": "2553",
            "account_name": "1100 - Accounts Receivable",
            "amount": 883.33
        }
    ],
    "credit_memos": [
        {
            "credit_memo_id": 4029,
            "credit_memo_number": "CM-0000007",
            "amount": 150,
            "posted_at": "2025-07-25"
        }
    ],
    "empty_transactions": []
}
headers = {"Content-Type": "application/json"}

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

print(response.text)

const options = {
  method: 'POST',
  headers: {'Content-Type': 'application/json'},
  body: JSON.stringify({
    invoice_id: '58700',
    transactions: [
      {
        transaction_id: 14728800,
        transaction_description: 'Payment from Campfire Software Inc',
        account_id: '2553',
        account_name: '1100 - Accounts Receivable',
        amount: 883.33
      }
    ],
    credit_memos: [
      {
        credit_memo_id: 4029,
        credit_memo_number: 'CM-0000007',
        amount: 150,
        posted_at: '2025-07-25'
      }
    ],
    empty_transactions: []
  })
};

fetch('https://api.meetcampfire.com/coa/api/v1/invoice/{invoice_id}/pay', 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/coa/api/v1/invoice/{invoice_id}/pay",
  CURLOPT_RETURNTRANSFER => true,
  CURLOPT_ENCODING => "",
  CURLOPT_MAXREDIRS => 10,
  CURLOPT_TIMEOUT => 30,
  CURLOPT_HTTP_VERSION => CURL_HTTP_VERSION_1_1,
  CURLOPT_CUSTOMREQUEST => "POST",
  CURLOPT_POSTFIELDS => json_encode([
    'invoice_id' => '58700',
    'transactions' => [
        [
                'transaction_id' => 14728800,
                'transaction_description' => 'Payment from Campfire Software Inc',
                'account_id' => '2553',
                'account_name' => '1100 - Accounts Receivable',
                'amount' => 883.33
        ]
    ],
    'credit_memos' => [
        [
                'credit_memo_id' => 4029,
                'credit_memo_number' => 'CM-0000007',
                'amount' => 150,
                'posted_at' => '2025-07-25'
        ]
    ],
    'empty_transactions' => [
        
    ]
  ]),
  CURLOPT_HTTPHEADER => [
    "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/coa/api/v1/invoice/{invoice_id}/pay"

	payload := strings.NewReader("{\n  \"invoice_id\": \"58700\",\n  \"transactions\": [\n    {\n      \"transaction_id\": 14728800,\n      \"transaction_description\": \"Payment from Campfire Software Inc\",\n      \"account_id\": \"2553\",\n      \"account_name\": \"1100 - Accounts Receivable\",\n      \"amount\": 883.33\n    }\n  ],\n  \"credit_memos\": [\n    {\n      \"credit_memo_id\": 4029,\n      \"credit_memo_number\": \"CM-0000007\",\n      \"amount\": 150,\n      \"posted_at\": \"2025-07-25\"\n    }\n  ],\n  \"empty_transactions\": []\n}")

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

	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.post("https://api.meetcampfire.com/coa/api/v1/invoice/{invoice_id}/pay")
  .header("Content-Type", "application/json")
  .body("{\n  \"invoice_id\": \"58700\",\n  \"transactions\": [\n    {\n      \"transaction_id\": 14728800,\n      \"transaction_description\": \"Payment from Campfire Software Inc\",\n      \"account_id\": \"2553\",\n      \"account_name\": \"1100 - Accounts Receivable\",\n      \"amount\": 883.33\n    }\n  ],\n  \"credit_memos\": [\n    {\n      \"credit_memo_id\": 4029,\n      \"credit_memo_number\": \"CM-0000007\",\n      \"amount\": 150,\n      \"posted_at\": \"2025-07-25\"\n    }\n  ],\n  \"empty_transactions\": []\n}")
  .asString();

require 'uri'
require 'net/http'

url = URI("https://api.meetcampfire.com/coa/api/v1/invoice/{invoice_id}/pay")

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

request = Net::HTTP::Post.new(url)
request["Content-Type"] = 'application/json'
request.body = "{\n  \"invoice_id\": \"58700\",\n  \"transactions\": [\n    {\n      \"transaction_id\": 14728800,\n      \"transaction_description\": \"Payment from Campfire Software Inc\",\n      \"account_id\": \"2553\",\n      \"account_name\": \"1100 - Accounts Receivable\",\n      \"amount\": 883.33\n    }\n  ],\n  \"credit_memos\": [\n    {\n      \"credit_memo_id\": 4029,\n      \"credit_memo_number\": \"CM-0000007\",\n      \"amount\": 150,\n      \"posted_at\": \"2025-07-25\"\n    }\n  ],\n  \"empty_transactions\": []\n}"

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

{
  "journal_entry_ids": [
    123
  ],
  "payment_ids": [
    123
  ],
  "auto_created_credit_memos": [
    {
      "id": 123,
      "credit_memo_number": "<string>"
    }
  ]
}