curl --request POST \
  --url https://bouclay.com/api/v1/subscriptions/{subscription}/plan-change/preview \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --header 'Idempotency-Key: <idempotency-key>' \
  --data '
{
  "planId": "<string>",
  "priceId": "<string>",
  "billingFrequency": 2,
  "quantities": {}
}
'

const options = {
  method: 'POST',
  headers: {
    'Idempotency-Key': '<idempotency-key>',
    Authorization: 'Bearer <token>',
    'Content-Type': 'application/json'
  },
  body: JSON.stringify({planId: '<string>', priceId: '<string>', billingFrequency: 2, quantities: {}})
};

fetch('https://bouclay.com/api/v1/subscriptions/{subscription}/plan-change/preview', options)
  .then(res => res.json())
  .then(res => console.log(res))
  .catch(err => console.error(err));

import requests

url = "https://bouclay.com/api/v1/subscriptions/{subscription}/plan-change/preview"

payload = {
    "planId": "<string>",
    "priceId": "<string>",
    "billingFrequency": 2,
    "quantities": {}
}
headers = {
    "Idempotency-Key": "<idempotency-key>",
    "Authorization": "Bearer <token>",
    "Content-Type": "application/json"
}

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

print(response.text)

<?php

$curl = curl_init();

curl_setopt_array($curl, [
  CURLOPT_URL => "https://bouclay.com/api/v1/subscriptions/{subscription}/plan-change/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([
    'planId' => '<string>',
    'priceId' => '<string>',
    'billingFrequency' => 2,
    'quantities' => [
        
    ]
  ]),
  CURLOPT_HTTPHEADER => [
    "Authorization: Bearer <token>",
    "Content-Type: application/json",
    "Idempotency-Key: <idempotency-key>"
  ],
]);

$response = curl_exec($curl);
$err = curl_error($curl);

curl_close($curl);

if ($err) {
  echo "cURL Error #:" . $err;
} else {
  echo $response;
}

{
  "data": {
    "object": "subscription_plan_change_preview",
    "change": {
      "fromPlanId": "<string>",
      "toPlanId": "<string>",
      "wayToPay": {
        "currency": "NGN",
        "interval": "day",
        "frequency": 1
      },
      "timing": "now",
      "timingReason": "<string>",
      "continues": [
        {
          "itemId": "<string>",
          "chargeId": "<string>",
          "name": "<string>",
          "fromPriceId": "<string>",
          "toPriceId": "<string>",
          "quantity": 123
        }
      ],
      "ends": [
        {
          "itemId": "<string>",
          "chargeId": "<string>",
          "name": "<string>",
          "priceId": "<string>",
          "usageType": "licensed"
        }
      ],
      "starts": [
        {
          "chargeId": "<string>",
          "name": "<string>",
          "priceId": "<string>",
          "quantity": 123
        }
      ]
    },
    "billsNow": true,
    "currency": "<string>",
    "credit": 1,
    "lines": [
      {
        "description": "<string>",
        "amount": 1
      }
    ],
    "totals": {
      "subtotal": 1,
      "discountTotal": 1,
      "grantApplied": 1,
      "taxTotal": 1,
      "total": 1,
      "balanceApplied": 123,
      "amountDue": 1
    }
  },
  "meta": {
    "requestId": "req_550e8400-e29b-41d4-a716-446655440000"
  }
}

{
  "error": {
    "type": "request_error",
    "code": "authentication_failed",
    "detail": "<string>",
    "errors": [
      {
        "field": "<string>",
        "message": "<string>"
      }
    ]
  },
  "meta": {
    "requestId": "req_550e8400-e29b-41d4-a716-446655440000"
  }
}

{
  "error": {
    "type": "request_error",
    "code": "authentication_failed",
    "detail": "<string>",
    "errors": [
      {
        "field": "<string>",
        "message": "<string>"
      }
    ]
  },
  "meta": {
    "requestId": "req_550e8400-e29b-41d4-a716-446655440000"
  }
}