curl --request GET \
  --url https://api.maesn.dev/accounting/bookingProposals/{bookingProposalId} \
  --header 'X-ACCOUNT-KEY: <x-account-key>' \
  --header 'X-API-KEY: <x-api-key>'

import requests

url = "https://api.maesn.dev/accounting/bookingProposals/{bookingProposalId}"

headers = {
    "X-API-KEY": "<x-api-key>",
    "X-ACCOUNT-KEY": "<x-account-key>"
}

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

print(response.text)

const options = {
  method: 'GET',
  headers: {'X-API-KEY': '<x-api-key>', 'X-ACCOUNT-KEY': '<x-account-key>'}
};

fetch('https://api.maesn.dev/accounting/bookingProposals/{bookingProposalId}', 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.maesn.dev/accounting/bookingProposals/{bookingProposalId}",
  CURLOPT_RETURNTRANSFER => true,
  CURLOPT_ENCODING => "",
  CURLOPT_MAXREDIRS => 10,
  CURLOPT_TIMEOUT => 30,
  CURLOPT_HTTP_VERSION => CURL_HTTP_VERSION_1_1,
  CURLOPT_CUSTOMREQUEST => "GET",
  CURLOPT_HTTPHEADER => [
    "X-ACCOUNT-KEY: <x-account-key>",
    "X-API-KEY: <x-api-key>"
  ],
]);

$response = curl_exec($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.maesn.dev/accounting/bookingProposals/{bookingProposalId}"

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

	req.Header.Add("X-API-KEY", "<x-api-key>")
	req.Header.Add("X-ACCOUNT-KEY", "<x-account-key>")

	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.maesn.dev/accounting/bookingProposals/{bookingProposalId}")
  .header("X-API-KEY", "<x-api-key>")
  .header("X-ACCOUNT-KEY", "<x-account-key>")
  .asString();

require 'uri'
require 'net/http'

url = URI("https://api.maesn.dev/accounting/bookingProposals/{bookingProposalId}")

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

request = Net::HTTP::Get.new(url)
request["X-API-KEY"] = '<x-api-key>'
request["X-ACCOUNT-KEY"] = '<x-account-key>'

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

{
  "meta": {
    "warnings": [
      "Field not used by target system"
    ],
    "pagination": {
      "total": 125,
      "perPage": 50,
      "currentPage": 1,
      "totalPages": 3
    }
  },
  "data": [
    {
      "id": "BP-12345",
      "addresses ": [
        {
          "city": "city"
        }
      ],
      "bankAccountId": "5a6b7f5dw45c1c-403e-ad56-202fbc312414",
      "bankAccountNumber": 5407324931,
      "bankCode": "50010517",
      "bic": "DEUTDEFF",
      "bookingProposalDate": "2025-07-14T00:00:00Z",
      "bookingType": "INVOICE",
      "contactAccountNumber": 70000,
      "contactId": "eaa28f49-6028-4b6e-bb12-d8f6278073fc",
      "contactName ": "John Doe",
      "createdDate": "2025-07-16T00:00:00Z",
      "currency": "EUR",
      "deliveryDate": "2025-07-26T00:00:00Z",
      "discountPaymentDate": "2025-07-16T00:00:00Z",
      "discountPaymentDate2": "2025-07-18T00:00:00Z",
      "dueDate": "2025-07-24T00:00:00Z",
      "files": [
        "file1.pdf"
      ],
      "journalCode": "60",
      "iban": "DE43100500000920018963",
      "isPaymentOrder": "true",
      "ledgerName": "Payroll",
      "lineItems": [
        {
          "id": "Item-112233",
          "accountCode": "200",
          "accountId": "db32-4f56-8a9b-1234567890ab",
          "accountName": "EXPENSE",
          "accountNumber": 4900,
          "bookingTaxCode": "9",
          "createdDate": "2021-01-01T00:00:00Z",
          "description": "Item A",
          "dimension1": "Marketing",
          "dimension2": "Service and Maintenance",
          "dimensions": [
            {
              "id": "eaa28f49-6028-4b6e-bb12-d8f6278073fc",
              "code": "CS1",
              "dimension": "CostCenter",
              "name": "Jerde, Greenfelder and Jacobi"
            }
          ],
          "discountAmount": 100,
          "discountAmount2": 50,
          "discountPercentage": 20,
          "discountPercentage2": 10,
          "taxCode": "02",
          "taxRatePercentage": 19,
          "totalGrossAmount": 500,
          "totalNetAmount": 450,
          "type": "SERVICES",
          "updatedDate": "2021-01-01T00:00:00Z"
        }
      ],
      "notes": "Bill for maintenance services",
      "number": "1233330",
      "orderId": "3344566",
      "paidDate": "2021-01-01T00:00:00Z",
      "paymentTermsId": "03",
      "status": "DRAFT",
      "taskId": "ADHUR74BCBSW8399DCN",
      "totalGrossAmount": 500,
      "updatedDate": "2025-07-16T00:00:00Z",
      "vatId": "DE987654321"
    }
  ]
}