ff1bc483b9
Stripe-hosted Checkout integration with full order lifecycle: - stripity_stripe ~> 3.2 with sandbox/prod config via env vars - Order and OrderItem schemas with price snapshots at purchase time - CheckoutController creates pending order then redirects to Stripe - StripeWebhookController verifies signatures and confirms payment - Success page with real-time PubSub updates from webhook - Shop flash messages for checkout error feedback - Cart cleared after successful payment Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
95 lines
2.5 KiB
Elixir
95 lines
2.5 KiB
Elixir
defmodule SimpleshopThemeWeb.CheckoutController do
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use SimpleshopThemeWeb, :controller
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alias SimpleshopTheme.Cart
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alias SimpleshopTheme.Orders
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require Logger
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def create(conn, _params) do
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cart_items = Cart.get_from_session(get_session(conn))
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hydrated = Cart.hydrate(cart_items)
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cond do
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hydrated == [] ->
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conn
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|> put_flash(:error, "Your basket is empty")
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|> redirect(to: ~p"/cart")
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true ->
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create_checkout(conn, hydrated)
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end
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end
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defp create_checkout(conn, hydrated_items) do
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# Create a pending order with price snapshots
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case Orders.create_order(%{items: hydrated_items}) do
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{:ok, order} ->
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create_stripe_session(conn, order, hydrated_items)
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{:error, _changeset} ->
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Logger.error("Failed to create order")
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conn
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|> put_flash(:error, "Something went wrong. Please try again.")
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|> redirect(to: ~p"/cart")
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end
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end
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defp create_stripe_session(conn, order, hydrated_items) do
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line_items =
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Enum.map(hydrated_items, fn item ->
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product_name =
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if item.variant,
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do: "#{item.name} — #{item.variant}",
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else: item.name
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%{
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price_data: %{
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currency: "gbp",
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unit_amount: item.price,
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product_data: %{name: product_name}
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},
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quantity: item.quantity
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}
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end)
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base_url = SimpleshopThemeWeb.Endpoint.url()
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params = %{
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mode: "payment",
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line_items: line_items,
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success_url: "#{base_url}/checkout/success?session_id={CHECKOUT_SESSION_ID}",
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cancel_url: "#{base_url}/cart",
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metadata: %{"order_id" => order.id},
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shipping_address_collection: %{
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allowed_countries: ["GB", "US", "CA", "AU", "DE", "FR", "NL", "IE", "AT", "BE"]
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}
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}
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case Stripe.Checkout.Session.create(params) do
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{:ok, session} ->
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{:ok, _order} = Orders.set_stripe_session(order, session.id)
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conn
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|> redirect(external: session.url)
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{:error, %Stripe.Error{message: message}} ->
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Logger.error("Stripe session creation failed: #{message}")
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Orders.mark_failed(order)
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conn
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|> put_flash(:error, "Payment setup failed. Please try again.")
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|> redirect(to: ~p"/cart")
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{:error, reason} ->
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Logger.error("Stripe session creation failed: #{inspect(reason)}")
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Orders.mark_failed(order)
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conn
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|> put_flash(:error, "Payment setup failed. Please try again.")
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|> redirect(to: ~p"/cart")
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end
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end
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end
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