curl --request POST \
  --url https://api.example.com/{supplierapi}/product/{productId}/allocation \
  --header 'Content-Type: application/json' \
  --data '
{
  "allocationName": "<string>",
  "defaultQuantity": 123,
  "productPricesDetailsIds": "<string>",
  "startDate": "<string>",
  "endDate": "<string>",
  "blockoutDays": "<string>",
  "bookingDetailId": 123,
  "bookingBuffer": 123
}
'

import requests

url = "https://api.example.com/{supplierapi}/product/{productId}/allocation"

payload = {
    "allocationName": "<string>",
    "defaultQuantity": 123,
    "productPricesDetailsIds": "<string>",
    "startDate": "<string>",
    "endDate": "<string>",
    "blockoutDays": "<string>",
    "bookingDetailId": 123,
    "bookingBuffer": 123
}
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({
    allocationName: '<string>',
    defaultQuantity: 123,
    productPricesDetailsIds: '<string>',
    startDate: '<string>',
    endDate: '<string>',
    blockoutDays: '<string>',
    bookingDetailId: 123,
    bookingBuffer: 123
  })
};

fetch('https://api.example.com/{supplierapi}/product/{productId}/allocation', 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.example.com/{supplierapi}/product/{productId}/allocation",
  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([
    'allocationName' => '<string>',
    'defaultQuantity' => 123,
    'productPricesDetailsIds' => '<string>',
    'startDate' => '<string>',
    'endDate' => '<string>',
    'blockoutDays' => '<string>',
    'bookingDetailId' => 123,
    'bookingBuffer' => 123
  ]),
  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.example.com/{supplierapi}/product/{productId}/allocation"

	payload := strings.NewReader("{\n  \"allocationName\": \"<string>\",\n  \"defaultQuantity\": 123,\n  \"productPricesDetailsIds\": \"<string>\",\n  \"startDate\": \"<string>\",\n  \"endDate\": \"<string>\",\n  \"blockoutDays\": \"<string>\",\n  \"bookingDetailId\": 123,\n  \"bookingBuffer\": 123\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.example.com/{supplierapi}/product/{productId}/allocation")
  .header("Content-Type", "application/json")
  .body("{\n  \"allocationName\": \"<string>\",\n  \"defaultQuantity\": 123,\n  \"productPricesDetailsIds\": \"<string>\",\n  \"startDate\": \"<string>\",\n  \"endDate\": \"<string>\",\n  \"blockoutDays\": \"<string>\",\n  \"bookingDetailId\": 123,\n  \"bookingBuffer\": 123\n}")
  .asString();

require 'uri'
require 'net/http'

url = URI("https://api.example.com/{supplierapi}/product/{productId}/allocation")

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  \"allocationName\": \"<string>\",\n  \"defaultQuantity\": 123,\n  \"productPricesDetailsIds\": \"<string>\",\n  \"startDate\": \"<string>\",\n  \"endDate\": \"<string>\",\n  \"blockoutDays\": \"<string>\",\n  \"bookingDetailId\": 123,\n  \"bookingBuffer\": 123\n}"

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