Stripe API版本过时及PayPal沙箱认证失败问题求助

错误提示明确旧版API中line_items直接定义amount/name/currency的写法已废弃，需改用price_data结构重构价格信息。替换原代码的line_items部分即可解决：

else if ($request->gateway == "stripe") {
    try {
        $stripe = new StripeClient($this->settings->stripe_secret_key);
        $data = $stripe->checkout->sessions->create([
            'success_url' => route('fund.verify', ['trans' => $ref]),
            'cancel_url' => route('fund.verify', ['trans' => $ref]),
            'payment_method_types' => ['card'],
            'line_items' => [
                [
                    'quantity' => 1,
                    'price_data' => [
                        'currency' => $link->getCurrency->real->currency,
                        'unit_amount' => number_format($amount + $charge, 2, '.', '') * 100,
                        'product_data' => [
                            'name' => $ref,
                        ],
                    ],
                ],
            ],
            'mode' => 'payment',
        ]);
        $sav->update([
            'charge_id' => $data->id,
        ]);
    } catch (\Stripe\Exception\CardException $e) {
        return back()->with('alert', $e->getMessage());
    } catch (\Stripe\Exception\InvalidRequestException $e) {
        return back()->with('alert', $e->getMessage());
    }

核心修改点：

• 将原line_items下的name移至price_data.product_data中
• 原amount改为price_data.unit_amount，保留乘以100的计价逻辑（Stripe以最小货币单位计费）
• 原currency移至price_data层级下

原代码固定调用生产环境API地址，且未区分沙箱/生产密钥，导致认证失败。修改方案如下：

else if ($request->gateway == "paypal") {
    // 根据沙箱模式切换API地址
    $apiUrl = $this->settings->paypal_sandbox_mode ? "https://api-m.sandbox.paypal.com/v2/checkout/orders" : "https://api-m.paypal.com/v2/checkout/orders";
    // 确保使用对应环境的Client ID和Secret Key
    $authToken = base64_encode($this->settings->paypal_client_id . ':' . $this->settings->paypal_secret_key);
    $param = [
        'intent' => "CAPTURE",
        "purchase_units" => [
            [
                'amount' => [
                    "currency_code" => $link->getCurrency->real->currency,
                    "value" => number_format($amount + $charge, 2, '.', '')
                ],
            ]
        ],
        "application_context" => [
            'return_url' => route('fund.verify', ['trans' => $ref]),
            'cancel_url' => route('fund.failed', ['trans' => $ref])
        ]
    ];
    $curl = new Curl();
    $curl->setHeader('Authorization', 'Basic ' . $authToken);
    $curl->setHeader('Content-Type', 'application/json');
    $curl->post($apiUrl, $param);
    $curl->close();
    $data = $curl->response;
}

关键操作：

1. 登录PayPal开发者平台，创建沙箱应用，获取沙箱专属的Client ID和Secret Key（不可与生产环境混用）
2. 在脚本设置中添加沙箱模式开关（如paypal_sandbox_mode字段），开启时自动切换到沙箱API地址并使用沙箱密钥

内容的提问来源于stack exchange，提问作者David Sundberg