Overriding Checkout Prices

When building custom checkout experiences, such as to provide upgrade pricing, it may be useful to override the checkout price, rather than using a coupon or other method.

You can do this by generating a unique checkout URL using the Custom Checkout API and passing in prices to override the initial checkout price or recurring_prices if you wish to override a subscription’s subsequent recurring payment amount. See the examples below for usage of these parameters.

PHP Example


<?php
    $data['vendor_id'] = 123;
    $data['vendor_auth_code'] = '456bd...';
    $data['product_id'] = 123456;
    
    // Here we are overriding the prices for multiple different currencies. For subscription products, this will override the initial checkout price only.
    $data['prices'] = [
		'USD:10',
		'GBP:12',
		'EUR:9.5'
	];
  
    // Subscription products only - here we are overriding the recurring prices for multiple different currencies.
    $data['recurring_prices'] = [
		'USD:9',
		'GBP:10',
		'EUR:8.9'
	];
    
    // Here we make the request to the Paddle API
    $url = 'https://vendors.paddle.com/api/2.0/product/generate_pay_link';
    $ch = curl_init($url);
    curl_setopt($ch, CURLOPT_POST, true);
    curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
    curl_setopt($ch, CURLOPT_POSTFIELDS, http_build_query($data));
    $response = curl_exec($ch);
    
    // And handle the response...
    $data = json_decode($response);
    if ($data->success) {
        echo "Success! Checkout URL:" . $data->response->url;
    } else {
        echo "Your request failed with error: " . $data->error->message;
    }

Bash Example



curl -X POST \
     -d 'vendor_id=123' \
     -d 'vendor_auth_code=456bd...' \
     -d 'product_id=123456' \
     -d 'prices[0]=USD:10' \
     -d 'prices[1]=GBP:12' \
     -d 'prices[2]=EUR:9.5' \
     -d 'recurring_prices[0]=USD:9' \
     -d 'recurring_prices[1]=GBP:10' \
     -d 'recurring_prices[2]=EUR:8.9' \
     -https://vendors.paddle.com/api/2.0/product/generate_pay_link

Example Response

{
    "success": true,
    "response": {
        "url": "https://checkout.paddle.com/checkout/custom/eyJ0IjoiUHJvZ……"
  }
}

The generated checkout URL can be displayed as an overlay with Paddle.js using the override parameter. Please click here for instructions on how to do this.

Overriding Checkout Prices

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