curl --request POST \
  --url https://api.sync2books.com/bill-payments/{connectionId} \
  --header 'Content-Type: application/json' \
  --header 'X-API-Key: <api-key>' \
  --data '
{
  "supplierRef": {
    "id": "<string>",
    "name": "<string>"
  },
  "accountRef": {
    "id": "<string>",
    "name": "<string>"
  },
  "totalAmount": 123,
  "currency": "<string>",
  "date": "2023-12-25",
  "billPaymentCode": "<string>",
  "currencyRate": 1.0001,
  "note": "<string>",
  "billRef": {
    "id": "<string>",
    "billCode": "<string>"
  },
  "lines": [
    {
      "amount": 123,
      "allocatedOnDate": "2023-12-25",
      "reference": "<string>",
      "links": [
        {
          "billId": "<string>",
          "amount": 123
        }
      ]
    }
  ]
}
'

import requests

url = "https://api.sync2books.com/bill-payments/{connectionId}"

payload = {
    "supplierRef": {
        "id": "<string>",
        "name": "<string>"
    },
    "accountRef": {
        "id": "<string>",
        "name": "<string>"
    },
    "totalAmount": 123,
    "currency": "<string>",
    "date": "2023-12-25",
    "billPaymentCode": "<string>",
    "currencyRate": 1.0001,
    "note": "<string>",
    "billRef": {
        "id": "<string>",
        "billCode": "<string>"
    },
    "lines": [
        {
            "amount": 123,
            "allocatedOnDate": "2023-12-25",
            "reference": "<string>",
            "links": [
                {
                    "billId": "<string>",
                    "amount": 123
                }
            ]
        }
    ]
}
headers = {
    "X-API-Key": "<api-key>",
    "Content-Type": "application/json"
}

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

print(response.text)

const options = {
  method: 'POST',
  headers: {'X-API-Key': '<api-key>', 'Content-Type': 'application/json'},
  body: JSON.stringify({
    supplierRef: {id: '<string>', name: '<string>'},
    accountRef: {id: '<string>', name: '<string>'},
    totalAmount: 123,
    currency: '<string>',
    date: '2023-12-25',
    billPaymentCode: '<string>',
    currencyRate: 1.0001,
    note: '<string>',
    billRef: {id: '<string>', billCode: '<string>'},
    lines: [
      {
        amount: 123,
        allocatedOnDate: '2023-12-25',
        reference: '<string>',
        links: [{billId: '<string>', amount: 123}]
      }
    ]
  })
};

fetch('https://api.sync2books.com/bill-payments/{connectionId}', 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.sync2books.com/bill-payments/{connectionId}",
  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([
    'supplierRef' => [
        'id' => '<string>',
        'name' => '<string>'
    ],
    'accountRef' => [
        'id' => '<string>',
        'name' => '<string>'
    ],
    'totalAmount' => 123,
    'currency' => '<string>',
    'date' => '2023-12-25',
    'billPaymentCode' => '<string>',
    'currencyRate' => 1.0001,
    'note' => '<string>',
    'billRef' => [
        'id' => '<string>',
        'billCode' => '<string>'
    ],
    'lines' => [
        [
                'amount' => 123,
                'allocatedOnDate' => '2023-12-25',
                'reference' => '<string>',
                'links' => [
                                [
                                                                'billId' => '<string>',
                                                                'amount' => 123
                                ]
                ]
        ]
    ]
  ]),
  CURLOPT_HTTPHEADER => [
    "Content-Type: application/json",
    "X-API-Key: <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"
	"strings"
	"net/http"
	"io"
)

func main() {

	url := "https://api.sync2books.com/bill-payments/{connectionId}"

	payload := strings.NewReader("{\n  \"supplierRef\": {\n    \"id\": \"<string>\",\n    \"name\": \"<string>\"\n  },\n  \"accountRef\": {\n    \"id\": \"<string>\",\n    \"name\": \"<string>\"\n  },\n  \"totalAmount\": 123,\n  \"currency\": \"<string>\",\n  \"date\": \"2023-12-25\",\n  \"billPaymentCode\": \"<string>\",\n  \"currencyRate\": 1.0001,\n  \"note\": \"<string>\",\n  \"billRef\": {\n    \"id\": \"<string>\",\n    \"billCode\": \"<string>\"\n  },\n  \"lines\": [\n    {\n      \"amount\": 123,\n      \"allocatedOnDate\": \"2023-12-25\",\n      \"reference\": \"<string>\",\n      \"links\": [\n        {\n          \"billId\": \"<string>\",\n          \"amount\": 123\n        }\n      ]\n    }\n  ]\n}")

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

	req.Header.Add("X-API-Key", "<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.post("https://api.sync2books.com/bill-payments/{connectionId}")
  .header("X-API-Key", "<api-key>")
  .header("Content-Type", "application/json")
  .body("{\n  \"supplierRef\": {\n    \"id\": \"<string>\",\n    \"name\": \"<string>\"\n  },\n  \"accountRef\": {\n    \"id\": \"<string>\",\n    \"name\": \"<string>\"\n  },\n  \"totalAmount\": 123,\n  \"currency\": \"<string>\",\n  \"date\": \"2023-12-25\",\n  \"billPaymentCode\": \"<string>\",\n  \"currencyRate\": 1.0001,\n  \"note\": \"<string>\",\n  \"billRef\": {\n    \"id\": \"<string>\",\n    \"billCode\": \"<string>\"\n  },\n  \"lines\": [\n    {\n      \"amount\": 123,\n      \"allocatedOnDate\": \"2023-12-25\",\n      \"reference\": \"<string>\",\n      \"links\": [\n        {\n          \"billId\": \"<string>\",\n          \"amount\": 123\n        }\n      ]\n    }\n  ]\n}")
  .asString();

require 'uri'
require 'net/http'

url = URI("https://api.sync2books.com/bill-payments/{connectionId}")

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

request = Net::HTTP::Post.new(url)
request["X-API-Key"] = '<api-key>'
request["Content-Type"] = 'application/json'
request.body = "{\n  \"supplierRef\": {\n    \"id\": \"<string>\",\n    \"name\": \"<string>\"\n  },\n  \"accountRef\": {\n    \"id\": \"<string>\",\n    \"name\": \"<string>\"\n  },\n  \"totalAmount\": 123,\n  \"currency\": \"<string>\",\n  \"date\": \"2023-12-25\",\n  \"billPaymentCode\": \"<string>\",\n  \"currencyRate\": 1.0001,\n  \"note\": \"<string>\",\n  \"billRef\": {\n    \"id\": \"<string>\",\n    \"billCode\": \"<string>\"\n  },\n  \"lines\": [\n    {\n      \"amount\": 123,\n      \"allocatedOnDate\": \"2023-12-25\",\n      \"reference\": \"<string>\",\n      \"links\": [\n        {\n          \"billId\": \"<string>\",\n          \"amount\": 123\n        }\n      ]\n    }\n  ]\n}"

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

{
  "supplierRef": {
    "id": "<string>",
    "name": "<string>"
  },
  "accountRef": {
    "id": "<string>",
    "name": "<string>"
  },
  "totalAmount": 123,
  "currency": "<string>",
  "date": "2023-12-25",
  "billPaymentCode": "<string>",
  "currencyRate": 1.0001,
  "note": "<string>",
  "paymentMethodRef": {
    "id": "<string>",
    "name": "<string>"
  },
  "billRef": {
    "id": "<string>",
    "billCode": "<string>"
  },
  "lines": [
    {
      "amount": 123,
      "allocatedOnDate": "2023-12-25",
      "reference": "<string>",
      "links": [
        {
          "billId": "<string>",
          "amount": 123
        }
      ]
    }
  ],
  "id": "<string>",
  "createdAt": "2023-11-07T05:31:56Z",
  "updatedAt": "2023-11-07T05:31:56Z"
}