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Multiple Products Purchase
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Login SubscribeA single product purchase looks awesome. We can even specify the quantity and it will be reflected on the LemonSqueezy checkout page. But what if we add one more product to the cart? A different product. Yep, there's a problem. We clicked the checkout button with two flavors of lemonade in our cart, but only one flavor - the first one in our cart - is on the checkout page. How can we fix this? Well... there's a slight problem.
LemonSqueezy currently limits the number of items we can purchase to just one. Bummer. And even though their roadmap suggests this may change in the future, that doesn't really help us right now. So what can we do? Get creative, of course!
If we take a look at the API docs, LemonSqueezy allows us to set our own price. So let's try something... for science. Over in OrderController.php inside createLsCheckoutUrl(), add if (count($products) === 1). Up here, cut the guts of the $attributes variable, then set it to an empty array. In our new if statement, write $attributes... paste...and... done!
| // ... lines 1 - 15 | |
| class OrderController extends AbstractController | |
| { | |
| // ... lines 18 - 69 | |
| private function createLsCheckoutUrl(HttpClientInterface $lsClient, ShoppingCart $cart, ?User $user): string | |
| { | |
| // ... lines 72 - 83 | |
| if (count($products) === 1) { | |
| $attributes['checkout_data']['variant_quantities'] = [ | |
| [ | |
| 'variant_id' => (int) $variantId, | |
| 'quantity' => $cart->getProductQuantity($products[0]), | |
| ], | |
| ]; | |
| } else { | |
| } | |
| // ... lines 94 - 120 | |
| } | |
| } |
Okay, now we need to change the quantity. Copy $cart->getProductQuantity(), remove that line, and paste it down here. Below that, add else, and inside, write $attributes['custom_price'] = $cart->getTotal() and $attributes['product_options'] set to an array where 'name' => 'E-lemonades', so the name is more universal for our users.
This looks good, but I think we can make this even better. Between our $attributes here, write $description = ''. Below that, we'll iterate over our products with foreach ($products as $product). Inside, set $description .= $product->getName() . 'for $' . number_format($product->getPrice()/100, 2) . ' x ' . $cart->getProductQuantity($product). Add a . '<br>' at the end. Don't forget to end this with a ;. Finally, in product_options, let's use this variable with 'description' => $description,. Nice.
| // ... lines 1 - 69 | |
| private function createLsCheckoutUrl(HttpClientInterface $lsClient, ShoppingCart $cart, ?User $user): string | |
| { | |
| // ... lines 72 - 83 | |
| if (count($products) === 1) { | |
| // ... lines 85 - 90 | |
| } else { | |
| $attributes['custom_price'] = $cart->getTotal(); | |
| $description = ''; | |
| foreach ($products as $product) { | |
| $description .= $product->getName() | |
| . ' for $' . number_format($product->getPrice() / 100, 2) | |
| . ' x ' . $cart->getProductQuantity($product) | |
| . '<br>'; | |
| } | |
| $attributes['product_options'] = [ | |
| 'name' => sprintf('E-lemonades'), | |
| 'description' => $description, | |
| ]; | |
| } | |
| // ... lines 105 - 131 | |
| } | |
| // ... lines 133 - 134 |
All right, let's test this out! Go to the cart page again and reload it, just to be safe. Click "Checkout with LemonSqueezy" and... it works! We can see the "E-lemonades" product name for $8.97, and below that, a description with the list of products, quantity, and price. It might not be ideal, but it works! We don't want to force our customers to go though the full checkout process for every single product they want to buy. Just think of all the profit we'd be missing out on!
We could even go a step further and change things like which image is displayed on the checkout page - also possible via the API. Or better yet, we could create a variety "E-lemonade" product in the LemonSqueezy dashboard and use that variantId to make it even more obvious that we’re buying a mix of e-lemonade products instead of a single, specific product.
The problem is that, even if we changed the name and description of the product on the LemonSqueezy checkout page, LemonSqueezy will still use the original name and image in emails and receipts. That may change one day, but at the moment, that's what we're working with.
If we fill in some fake billing info, other required fields on the checkout page and click the "Pay" button... we get this order confirmation message. If we check our email...yep, we just see info for the first product. Our custom name and description are missing. The same goes for the page where we view our order. So, this isn't perfect...
Next: Let’s polish our checkout process even more with some post-checkout operations.
