條紋API退款取消

Question

從條紋文檔：

要取消訂閱，客戶的卡不會被再次 充電，但沒有錢會退還任何。如果您想要 退款，您可以通過Stripe的儀表板或通過 API來完成。

我創建了月度訂閱，我只想退還訂閱月份內尚未通過的天數的金額。我怎樣才能從尚未完成Stripe API的訂閱中退款？

Answer 1

您需要計算退款金額，然後將條碼refund API call設置爲Stripe。退款後，您必須再次撥打Subscription cancellation

Answer 2

如果您想讓Stripe處理退款計算，您可以將訂購數量更改爲0，然後取消計劃。

Answer 3

研究了一段時間後，我來到這個流程編寫的JavaScript的Node.js：

refundAndUnsubscribe = async function() { 
try { 

    // Set proration date to this moment: 
    const proration_date = Math.floor(Date.now()/1000); 

    let sub = await stripe.subscriptions.retrieve("sub_CILnalN9HpvADj"); 

    // See what the next invoice would look like with a plan switch 
    // and proration set: 
    let items = [{ 
     quantity: 0, 
     id: sub.items.data[0].id, 
     plan: "your_plan" // Switch to new plan 
    }]; 


    let invoices = await stripe.invoices.retrieveUpcoming('cus_CIP9dtlq143gq7', 'sub_CILnalN9HpvADj', { 
     subscription_items: items, 
     subscription_proration_date: proration_date 
    }); 

    //List all invoices 
    let payedInvoicesList = await stripe.invoices.list({ 
     customer: 'cus_CIP9dtlq143gq7' 
    }); 

    // Calculate the proration cost: 
    let current_prorations = []; 
    let cost = 0; 
    for (var i = 0; i < invoices.lines.data.length; i++) { 
     let invoice_item = invoices.lines.data[i]; 
     if (invoice_item.period.start == proration_date) { 
      current_prorations.push(invoice_item); 
      cost += invoice_item.amount; 
     } 
    } 

    //create a refund 
    if (cost !== 0) { 
     cost = (cost < 0) ? cost * -1 : cost //A positive integer in cents 

     let refund = await stripe.refunds.create({ 
      charge: payedInvoicesList.data[0].charge, 
      amount: cost 
     }); 
    } 

    // delete subscription 
    return stripe.subscriptions.del('sub_CILnalN9HpvADj'); 

} catch (e) { 
    console.log(e); 
} 

}