curl --request POST \
  --url https://api.unibee.dev/merchant/discount/plan_apply_preview \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --data '
{
  "code": "<string>",
  "addonParams": [
    {
      "addonPlanId": 123,
      "quantity": 123
    }
  ],
  "currency": "<string>",
  "email": "<string>",
  "externalPlanId": "<string>",
  "isChangeToLongPlan": true,
  "isChangeToSameIntervalPlan": true,
  "isUpgrade": true,
  "planId": 123,
  "quantity": 123
}
'

import requests

url = "https://api.unibee.dev/merchant/discount/plan_apply_preview"

payload = {
    "code": "<string>",
    "addonParams": [
        {
            "addonPlanId": 123,
            "quantity": 123
        }
    ],
    "currency": "<string>",
    "email": "<string>",
    "externalPlanId": "<string>",
    "isChangeToLongPlan": True,
    "isChangeToSameIntervalPlan": True,
    "isUpgrade": True,
    "planId": 123,
    "quantity": 123
}
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({
    code: '<string>',
    addonParams: [{addonPlanId: 123, quantity: 123}],
    currency: '<string>',
    email: '<string>',
    externalPlanId: '<string>',
    isChangeToLongPlan: true,
    isChangeToSameIntervalPlan: true,
    isUpgrade: true,
    planId: 123,
    quantity: 123
  })
};

fetch('https://api.unibee.dev/merchant/discount/plan_apply_preview', 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.unibee.dev/merchant/discount/plan_apply_preview",
  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([
    'code' => '<string>',
    'addonParams' => [
        [
                'addonPlanId' => 123,
                'quantity' => 123
        ]
    ],
    'currency' => '<string>',
    'email' => '<string>',
    'externalPlanId' => '<string>',
    'isChangeToLongPlan' => true,
    'isChangeToSameIntervalPlan' => true,
    'isUpgrade' => true,
    'planId' => 123,
    'quantity' => 123
  ]),
  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.unibee.dev/merchant/discount/plan_apply_preview"

	payload := strings.NewReader("{\n  \"code\": \"<string>\",\n  \"addonParams\": [\n    {\n      \"addonPlanId\": 123,\n      \"quantity\": 123\n    }\n  ],\n  \"currency\": \"<string>\",\n  \"email\": \"<string>\",\n  \"externalPlanId\": \"<string>\",\n  \"isChangeToLongPlan\": true,\n  \"isChangeToSameIntervalPlan\": true,\n  \"isUpgrade\": true,\n  \"planId\": 123,\n  \"quantity\": 123\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.unibee.dev/merchant/discount/plan_apply_preview")
  .header("Authorization", "Bearer <token>")
  .header("Content-Type", "application/json")
  .body("{\n  \"code\": \"<string>\",\n  \"addonParams\": [\n    {\n      \"addonPlanId\": 123,\n      \"quantity\": 123\n    }\n  ],\n  \"currency\": \"<string>\",\n  \"email\": \"<string>\",\n  \"externalPlanId\": \"<string>\",\n  \"isChangeToLongPlan\": true,\n  \"isChangeToSameIntervalPlan\": true,\n  \"isUpgrade\": true,\n  \"planId\": 123,\n  \"quantity\": 123\n}")
  .asString();

require 'uri'
require 'net/http'

url = URI("https://api.unibee.dev/merchant/discount/plan_apply_preview")

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  \"code\": \"<string>\",\n  \"addonParams\": [\n    {\n      \"addonPlanId\": 123,\n      \"quantity\": 123\n    }\n  ],\n  \"currency\": \"<string>\",\n  \"email\": \"<string>\",\n  \"externalPlanId\": \"<string>\",\n  \"isChangeToLongPlan\": true,\n  \"isChangeToSameIntervalPlan\": true,\n  \"isUpgrade\": true,\n  \"planId\": 123,\n  \"quantity\": 123\n}"

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

{
  "code": 123,
  "data": {
    "allPlansAllowed": true,
    "allowedPlanIds": [
      123
    ],
    "discountAmount": 123,
    "discountCode": {
      "advance": true,
      "billingType": 123,
      "code": "<string>",
      "createTime": 123,
      "currency": "<string>",
      "cycleLimit": 123,
      "discountAmount": 123,
      "discountPercentage": 123,
      "discountType": 123,
      "endTime": 123,
      "id": 123,
      "isDeleted": 123,
      "merchantId": 123,
      "metadata": {},
      "name": "<string>",
      "planApplyGroup": {
        "currency": [
          "<string>"
        ],
        "groupPlanIntervalSelector": [
          {
            "intervalCount": 123,
            "intervalUnit": "<string>"
          }
        ],
        "type": [
          123
        ]
      },
      "planApplyType": 123,
      "planIds": [
        123
      ],
      "quantity": 123,
      "startTime": 123,
      "status": 123,
      "upgradeLongerOnly": true,
      "upgradeOnly": true,
      "userLimit": 123,
      "userScope": 123
    },
    "failureReason": "<string>",
    "valid": true
  },
  "merchantId": 123,
  "message": "<string>",
  "redirect": "<string>",
  "requestId": "<string>"
}