32 lines
775 B
Elixir
32 lines
775 B
Elixir
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defmodule SimpleshopThemeWeb.CartController do
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@moduledoc """
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API controller for cart session persistence.
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LiveView cannot write to session directly, so cart updates are persisted
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via this API endpoint called from a JS hook after each cart modification.
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"""
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use SimpleshopThemeWeb, :controller
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alias SimpleshopTheme.Cart
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@doc """
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Updates the cart in session.
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Expects JSON body with `items` as a list of [variant_id, quantity] arrays.
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"""
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def update(conn, %{"items" => items}) when is_list(items) do
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cart_items = Cart.deserialize(items)
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conn
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|> Cart.put_in_session(cart_items)
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|> json(%{ok: true})
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end
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def update(conn, _params) do
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conn
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|> put_status(:bad_request)
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|> json(%{error: "Invalid cart data"})
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end
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end
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