# Toss

### 1. Configure Toss simple payment PG settings

Refer to the [**Toss simple pay settings**](/docs-en/ready/2.-pg/pg/undefined-1.md) page to configure the PG settings.

![](/files/LA25nzEmvboLLmUUnold)

### 2. Request payment

To open the payment window, call [JavaScript SDK](/docs-en/sdk/javascript-sdk.md) IMP.**request\_pay**(param, callback).

In PC browsers, <mark style="color:red;">**callback**</mark> is invoked after calling `IMP.request_pay(param, callback)`. In mobile browsers, the page is redirected to <mark style="color:red;">**m\_redirect\_url**</mark>.

{% tabs %}
{% tab title="General payment request" %}
{% code title="Javascript SDK" %}

```javascript
IMP.request_pay({
    pg : 'tosspay',
    pay_method : 'card',
    merchant_uid: '{Merchant created Order ID}', //Example: order_no_0001
    name : 'Order name: Test payment',
    amount : 14000,
    buyer_email : 'iamport@siot.do',
    buyer_name : 'Customer name',
    buyer_tel : '010-1234-5678',
    buyer_addr : 'Samseong-dong, Gangnam-gu, Seoul',
    buyer_postcode : '123-456',
    m_redirect_url : "{URL to redirect to after payment approval}" //Example: http://yourservice.com/payments/complete
}, function(rsp) { // callback logic
	//* ...Omitted... *//
});
```

{% endcode %}

#### Key parameter description

**`pg`** <mark style="color:red;">**\***</mark>\*\* \*\*<mark style="color:green;">**string**</mark>

**PG code**

* If not specified and this is the only PG setting that exists, `default PG` is automatically set.
* If there are multiple PG settings, set to **`tosspay`**.

**`pay_method`** <mark style="color:green;">**string**</mark>

**Payment method code**

* `card` (credit card)
* `trans` (instant account transfer)

**`name`** <mark style="color:red;">**\***</mark>\*\* \*\*<mark style="color:green;">**string**</mark>

**Product name**

**`merchant_uid`** <mark style="color:red;">**\***</mark>\*\* \*\*<mark style="color:green;">**string**</mark>

**Order ID**

Must be unique for each request.

**`amount`** <mark style="color:red;">**\***</mark>\*\* \*\*<mark style="color:purple;">**integer**</mark>

**Payment amount**

Must be an integer (not string)

{% embed url="<https://codepen.io/chaiport/pen/wvyxzYv>" %}
**Toss simple payment window example**
{% endembed %}
{% endtab %}
{% endtabs %}

{% hint style="info" %}
**Toss simple payment is processed in mobile Toss App.**
{% endhint %}


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