curl --request POST \
  --url https://api.meetcampfire.com/coa/api/v1/credit-memo \
  --header 'Content-Type: application/json' \
  --data '
{
  "lines": [
    {
      "tags": [
        {
          "id": "7736",
          "name": "Other"
        }
      ],
      "product": "3679",
      "product_name": "Annual Subscription",
      "account": "169208",
      "account_name": "Subscription fees",
      "department": "35",
      "department_name": "Engineering",
      "description": "Credit for overpayment on annual subscription",
      "amount": 1000.23
    }
  ],
  "entity": "54",
  "entity_name": "Top Level",
  "entity_currency": "USD",
  "currency": "USD",
  "client": "33973",
  "client_name": "Client A",
  "credit_memo_date": "2025-07-01",
  "exchange_rate_book": 1,
  "exchange_rate": 1,
  "credit_account": "41905",
  "credit_account_name": "5230 - Cloud Credits",
  "message_on_credit_memo": "Credit memo for annual subscription overpayment. Thank you for your business."
}
'

import requests

url = "https://api.meetcampfire.com/coa/api/v1/credit-memo"

payload = {
    "lines": [
        {
            "tags": [
                {
                    "id": "7736",
                    "name": "Other"
                }
            ],
            "product": "3679",
            "product_name": "Annual Subscription",
            "account": "169208",
            "account_name": "Subscription fees",
            "department": "35",
            "department_name": "Engineering",
            "description": "Credit for overpayment on annual subscription",
            "amount": 1000.23
        }
    ],
    "entity": "54",
    "entity_name": "Top Level",
    "entity_currency": "USD",
    "currency": "USD",
    "client": "33973",
    "client_name": "Client A",
    "credit_memo_date": "2025-07-01",
    "exchange_rate_book": 1,
    "exchange_rate": 1,
    "credit_account": "41905",
    "credit_account_name": "5230 - Cloud Credits",
    "message_on_credit_memo": "Credit memo for annual subscription overpayment. Thank you for your business."
}
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({
    lines: [
      {
        tags: [{id: '7736', name: 'Other'}],
        product: '3679',
        product_name: 'Annual Subscription',
        account: '169208',
        account_name: 'Subscription fees',
        department: '35',
        department_name: 'Engineering',
        description: 'Credit for overpayment on annual subscription',
        amount: 1000.23
      }
    ],
    entity: '54',
    entity_name: 'Top Level',
    entity_currency: 'USD',
    currency: 'USD',
    client: '33973',
    client_name: 'Client A',
    credit_memo_date: '2025-07-01',
    exchange_rate_book: 1,
    exchange_rate: 1,
    credit_account: '41905',
    credit_account_name: '5230 - Cloud Credits',
    message_on_credit_memo: 'Credit memo for annual subscription overpayment. Thank you for your business.'
  })
};

fetch('https://api.meetcampfire.com/coa/api/v1/credit-memo', 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/credit-memo",
  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([
    'lines' => [
        [
                'tags' => [
                                [
                                                                'id' => '7736',
                                                                'name' => 'Other'
                                ]
                ],
                'product' => '3679',
                'product_name' => 'Annual Subscription',
                'account' => '169208',
                'account_name' => 'Subscription fees',
                'department' => '35',
                'department_name' => 'Engineering',
                'description' => 'Credit for overpayment on annual subscription',
                'amount' => 1000.23
        ]
    ],
    'entity' => '54',
    'entity_name' => 'Top Level',
    'entity_currency' => 'USD',
    'currency' => 'USD',
    'client' => '33973',
    'client_name' => 'Client A',
    'credit_memo_date' => '2025-07-01',
    'exchange_rate_book' => 1,
    'exchange_rate' => 1,
    'credit_account' => '41905',
    'credit_account_name' => '5230 - Cloud Credits',
    'message_on_credit_memo' => 'Credit memo for annual subscription overpayment. Thank you for your business.'
  ]),
  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/credit-memo"

	payload := strings.NewReader("{\n  \"lines\": [\n    {\n      \"tags\": [\n        {\n          \"id\": \"7736\",\n          \"name\": \"Other\"\n        }\n      ],\n      \"product\": \"3679\",\n      \"product_name\": \"Annual Subscription\",\n      \"account\": \"169208\",\n      \"account_name\": \"Subscription fees\",\n      \"department\": \"35\",\n      \"department_name\": \"Engineering\",\n      \"description\": \"Credit for overpayment on annual subscription\",\n      \"amount\": 1000.23\n    }\n  ],\n  \"entity\": \"54\",\n  \"entity_name\": \"Top Level\",\n  \"entity_currency\": \"USD\",\n  \"currency\": \"USD\",\n  \"client\": \"33973\",\n  \"client_name\": \"Client A\",\n  \"credit_memo_date\": \"2025-07-01\",\n  \"exchange_rate_book\": 1,\n  \"exchange_rate\": 1,\n  \"credit_account\": \"41905\",\n  \"credit_account_name\": \"5230 - Cloud Credits\",\n  \"message_on_credit_memo\": \"Credit memo for annual subscription overpayment. Thank you for your business.\"\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/credit-memo")
  .header("Content-Type", "application/json")
  .body("{\n  \"lines\": [\n    {\n      \"tags\": [\n        {\n          \"id\": \"7736\",\n          \"name\": \"Other\"\n        }\n      ],\n      \"product\": \"3679\",\n      \"product_name\": \"Annual Subscription\",\n      \"account\": \"169208\",\n      \"account_name\": \"Subscription fees\",\n      \"department\": \"35\",\n      \"department_name\": \"Engineering\",\n      \"description\": \"Credit for overpayment on annual subscription\",\n      \"amount\": 1000.23\n    }\n  ],\n  \"entity\": \"54\",\n  \"entity_name\": \"Top Level\",\n  \"entity_currency\": \"USD\",\n  \"currency\": \"USD\",\n  \"client\": \"33973\",\n  \"client_name\": \"Client A\",\n  \"credit_memo_date\": \"2025-07-01\",\n  \"exchange_rate_book\": 1,\n  \"exchange_rate\": 1,\n  \"credit_account\": \"41905\",\n  \"credit_account_name\": \"5230 - Cloud Credits\",\n  \"message_on_credit_memo\": \"Credit memo for annual subscription overpayment. Thank you for your business.\"\n}")
  .asString();

require 'uri'
require 'net/http'

url = URI("https://api.meetcampfire.com/coa/api/v1/credit-memo")

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  \"lines\": [\n    {\n      \"tags\": [\n        {\n          \"id\": \"7736\",\n          \"name\": \"Other\"\n        }\n      ],\n      \"product\": \"3679\",\n      \"product_name\": \"Annual Subscription\",\n      \"account\": \"169208\",\n      \"account_name\": \"Subscription fees\",\n      \"department\": \"35\",\n      \"department_name\": \"Engineering\",\n      \"description\": \"Credit for overpayment on annual subscription\",\n      \"amount\": 1000.23\n    }\n  ],\n  \"entity\": \"54\",\n  \"entity_name\": \"Top Level\",\n  \"entity_currency\": \"USD\",\n  \"currency\": \"USD\",\n  \"client\": \"33973\",\n  \"client_name\": \"Client A\",\n  \"credit_memo_date\": \"2025-07-01\",\n  \"exchange_rate_book\": 1,\n  \"exchange_rate\": 1,\n  \"credit_account\": \"41905\",\n  \"credit_account_name\": \"5230 - Cloud Credits\",\n  \"message_on_credit_memo\": \"Credit memo for annual subscription overpayment. Thank you for your business.\"\n}"

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

{
  "id": 4258,
  "lines": [
    {
      "id": 5449,
      "account_number": "4107",
      "account_name": "4107 - Subscription fees",
      "product_name": "Annual Subscription",
      "department_name": "Engineering",
      "tags": [
        {
          "id": 7736,
          "parent_name": null,
          "parent": null,
          "name": "Other",
          "created_at": "2025-06-18T21:09:34+00:00",
          "last_modified_at": "2025-06-18T21:09:34+00:00",
          "group": null
        }
      ],
      "description": "Credit for overpayment on annual subscription",
      "amount": 1000.23,
      "created_at": "2025-07-25T21:04:38+00:00",
      "last_modified_at": "2025-07-25T21:04:38+00:00",
      "product": 3679,
      "account": 169208,
      "department": 35
    }
  ],
  "payments": [],
  "total_amount": 1000.23,
  "amount_used": 0,
  "amount_remaining": 1000.23,
  "entity_name": "Top Level",
  "entity_currency": "USD",
  "client_name": "Client A",
  "credit_account_name": "5230 - Cloud Credits",
  "attachments": [],
  "credit_memo_number": "CM-0000008",
  "voided_date": null,
  "ref_number": null,
  "credit_memo_date": "2025-07-01",
  "applied_date": null,
  "message_on_credit_memo": "Credit memo for annual subscription overpayment. Thank you for your business.",
  "application_status": "open",
  "currency": "USD",
  "exchange_rate": 1,
  "exchange_rate_book": 1,
  "created_at": "2025-07-25T21:04:38+00:00",
  "last_modified_at": "2025-07-25T21:04:38+00:00",
  "customer": 2,
  "entity": 54,
  "client": 33973,
  "credit_account": 41905,
  "journal_entry": 7491953,
  "contract": null,
  "voided_journal_entry": null
}