curl --request POST \
  --url https://api.mijnklantportaal.nl/v1/customer-offers/manual \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --data '
{
  "customerId": "cst_abc12345def678",
  "offerNumber": "2014-001",
  "issuedAt": "2025-04-14",
  "expiresAt": "2025-04-31",
  "lines": [
    {
      "description": "Website template",
      "amountExclVat": "12.95",
      "vatRate": 21
    }
  ],
  "sendNotification": true
}
'

import requests

url = "https://api.mijnklantportaal.nl/v1/customer-offers/manual"

payload = {
    "customerId": "cst_abc12345def678",
    "offerNumber": "2014-001",
    "issuedAt": "2025-04-14",
    "expiresAt": "2025-04-31",
    "lines": [
        {
            "description": "Website template",
            "amountExclVat": "12.95",
            "vatRate": 21
        }
    ],
    "sendNotification": True
}
headers = {
    "Authorization": "Bearer <token>",
    "Content-Type": "application/json"
}

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

print(response.text)

const options = {
  method: 'POST',
  headers: {Authorization: 'Bearer <token>', 'Content-Type': 'application/json'},
  body: JSON.stringify({
    customerId: 'cst_abc12345def678',
    offerNumber: '2014-001',
    issuedAt: '2025-04-14',
    expiresAt: '2025-04-31',
    lines: [{description: 'Website template', amountExclVat: '12.95', vatRate: 21}],
    sendNotification: true
  })
};

fetch('https://api.mijnklantportaal.nl/v1/customer-offers/manual', 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.mijnklantportaal.nl/v1/customer-offers/manual",
  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([
    'customerId' => 'cst_abc12345def678',
    'offerNumber' => '2014-001',
    'issuedAt' => '2025-04-14',
    'expiresAt' => '2025-04-31',
    'lines' => [
        [
                'description' => 'Website template',
                'amountExclVat' => '12.95',
                'vatRate' => 21
        ]
    ],
    'sendNotification' => true
  ]),
  CURLOPT_HTTPHEADER => [
    "Authorization: Bearer <token>",
    "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.mijnklantportaal.nl/v1/customer-offers/manual"

	payload := strings.NewReader("{\n  \"customerId\": \"cst_abc12345def678\",\n  \"offerNumber\": \"2014-001\",\n  \"issuedAt\": \"2025-04-14\",\n  \"expiresAt\": \"2025-04-31\",\n  \"lines\": [\n    {\n      \"description\": \"Website template\",\n      \"amountExclVat\": \"12.95\",\n      \"vatRate\": 21\n    }\n  ],\n  \"sendNotification\": true\n}")

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

	req.Header.Add("Authorization", "Bearer <token>")
	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.mijnklantportaal.nl/v1/customer-offers/manual")
  .header("Authorization", "Bearer <token>")
  .header("Content-Type", "application/json")
  .body("{\n  \"customerId\": \"cst_abc12345def678\",\n  \"offerNumber\": \"2014-001\",\n  \"issuedAt\": \"2025-04-14\",\n  \"expiresAt\": \"2025-04-31\",\n  \"lines\": [\n    {\n      \"description\": \"Website template\",\n      \"amountExclVat\": \"12.95\",\n      \"vatRate\": 21\n    }\n  ],\n  \"sendNotification\": true\n}")
  .asString();

require 'uri'
require 'net/http'

url = URI("https://api.mijnklantportaal.nl/v1/customer-offers/manual")

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

request = Net::HTTP::Post.new(url)
request["Authorization"] = 'Bearer <token>'
request["Content-Type"] = 'application/json'
request.body = "{\n  \"customerId\": \"cst_abc12345def678\",\n  \"offerNumber\": \"2014-001\",\n  \"issuedAt\": \"2025-04-14\",\n  \"expiresAt\": \"2025-04-31\",\n  \"lines\": [\n    {\n      \"description\": \"Website template\",\n      \"amountExclVat\": \"12.95\",\n      \"vatRate\": 21\n    }\n  ],\n  \"sendNotification\": true\n}"

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

{
  "id": "off_abc12345def678",
  "customerId": "cst_abc12345def678",
  "offerNumber": "2024-001",
  "issuedAt": "2024-04-29",
  "expiresAt": "2024-05-29",
  "currency": "EUR",
  "amount": "12.95",
  "acceptedAt": "2024-05-14T21:00:00+02:00",
  "acceptedViaIp": "123.456.7.8.9",
  "acceptedViaUserAgent": "Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/51.0.2704.103 Safari/537.36",
  "acceptanceSignature": "data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAABgAA...",
  "rejectedAt": "2024-05-14T21:00:00+02:00",
  "createdAt": "2024-04-29T21:00:00+02:00",
  "links": {
    "customer": {
      "href": "https://api.mijnklantportaal.nl/v1/customers/cst_abc12345def678",
      "type": "<string>"
    }
  }
}

{
  "message": "<string>"
}

{
  "message": "<string>"
}