How to go to checkout page programmatically? or a buy it now button

[James_Pan]

I can call Ajax API to add a product to cart then call below code to navigate users to the checkout page

const response = await fetch('/cart', {
headers: {
'content-type': 'application/x-www-form-urlencoded',
},
method: 'POST',
body: 'updates%5B%5D=1&updates%5B%5D=1&updates%5B%5D=1&checkout=',
});
location.href = response.url;

But I wondering if there is a better way since this code is quite tricky

[Entesta · Accepted solution]

You can try this one. It will do the same based on the official cart API

// Function to add item to cart and redirect to checkout
async function cartToCheckout(variantId, quantity) {
  try {
    // Add item to cart
    const addToCartResponse = await fetch('/cart/add.js', {
      method: 'POST',
      headers: {
        'Content-Type': 'application/json',
      },
      body: JSON.stringify({
        items: [{
          id: variantId,
          quantity: quantity
        }]
      })
    });

    if (!addToCartResponse.ok) {
      throw new Error('Failed to add item to cart');
    }

    // Redirect to checkout
    window.location.href = '/checkout';
  } catch (error) {
    console.error('Error:', error);
    // Handle error (e.g., show error message to user)
  }
}

// How to use
cartToCheckout(12345678, 1); // Replace 12345678 with actual variant ID

Do let me know if it works.

Thanks.

[James_Pan]

Thanks, dude! it works perfectly! I'm wondering why I wrote lines of very complicated code for just a line of "window.location.href = '/checkout'" 🤣