> For the complete documentation index, see [llms.txt](https://lianlianpay.gitbook.io/docs/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://lianlianpay.gitbook.io/docs/easy-payment/easypay_h5_redirect.md).

# H5 Payment API

### Endpoint

```markup
https://wap.lianlianpay.com/travlepay.htm
```

The way to call this API is limited to HTML `<form/>` post request from client-side. All of the required parameters should be embedded into a `<input>` tag whose name is `req_data`:

```markup
<form action="https://wap.lianlianpay.com/travlepay.htm" method="POST">
    <input name="req_data" value='{$value}'>
</form>
```

### Request Parameters

| Name              | Required | Type        | Description                                                                                                                                                                                                                                                                             |
| ----------------- | -------- | ----------- | --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
| version           | Required | String      | Fixed value, `1.0`                                                                                                                                                                                                                                                                      |
| oid\_partner      | Required | String(18)  | The unique identification assigned to the merchant. E.g. 201304121000001004                                                                                                                                                                                                             |
| platform          | Optional | String(32)  | `platform` is used for sharing user info between multiple `oid_partner`, this requires additional settings from LianLian side                                                                                                                                                           |
| user\_id          | Required | String(32)  | The unique identification assigned to the user in the merchant’s system                                                                                                                                                                                                                 |
| app\_request      | Required | String(1)   | <p>1, Android <br> 2, iOS <br> 3, H5</p>                                                                                                                                                                                                                                                |
| timestamp         | Required | String(14)  | The time when request is initialized. Format: yyyyMMddHHmmss, E.g. 20170801225714. The time difference between your server and LianLian server(UTC +8) should be no more than 30 mins                                                                                                   |
| sign\_type        | Required | String(3)   | RSA                                                                                                                                                                                                                                                                                     |
| sign              | Required | String      | Signature value                                                                                                                                                                                                                                                                         |
| bg\_color         | Optional | String(6)   | The background color of payment pages. Range: `000000` \~ `ffffff`. By default is `ff5001`                                                                                                                                                                                              |
| font\_color       | Optional | String(6)   | The font color of payment pages. Range: `000000` \~ `ffffff`                                                                                                                                                                                                                            |
| syschnotify\_flag | Optional | String(1)   | <p>0, Redirect only when the return button is clicked <br> 1, Redirect automatically <br> How the user is redirected after completing payments, by default is 0</p>                                                                                                                     |
| busi\_partner     | Required | String(6)   | Fixed value. Virtual products, `101001`; Physical products, `109001`                                                                                                                                                                                                                    |
| no\_order         | Required | String(32)  | Merchant order No.                                                                                                                                                                                                                                                                      |
| dt\_order         | Required | String(14)  | Merchant order date. Format: yyyyMMddHHmmss, E.g. 20170801225714                                                                                                                                                                                                                        |
| name\_goods       | Required | String(40)  | Product name. E.g. Pen                                                                                                                                                                                                                                                                  |
| info\_order       | Optional | String(255) | `info_order` will be sent back in synchronous or asynchronous notification for parameters transmission                                                                                                                                                                                  |
| money\_order      | Required | String(12)  | Merchant order amount, range: 0.01 \~ 100,000,000.00, 2 decimal places are expected, in CNY                                                                                                                                                                                             |
| notify\_url       | Required | String(128) | Online url where asynchronous notification should be sent, E.g. <http://www.lianlianpay.com/help/notify>                                                                                                                                                                                |
| url\_return       | Optional | String(128) | Online url, your customer will be redirected to `url_return` once they finished their payment                                                                                                                                                                                           |
| back\_url         | Optional | String(128) | The url where user is redirected when they need to change cards. For [payment info preset](/docs/easy-payment/easypay.md#payment-info-preset) only                                                                                                                                      |
| no\_agree         | Optional | String(32)  | A token which represents the key payment information, refer to [Binding Card](/docs/easy-payment/easypay.md) for more details                                                                                                                                                           |
| valid\_order      | Optional | Int         | The valid period of `no_order`, in minute. The status of corresponding transaction will be set to "Closed" once its `valid_order` run out. Default: 10080 (7 days).                                                                                                                     |
| pay\_type         | Required | String      | <p>M, regular payments <br> F, authorization, used for credit card only. An error throws out if the used card is not a credit card</p>                                                                                                                                                  |
| risk\_item        | Required | String      | This parameter is used for payment risk control, all required parameters should be included in the value of `risk_item` in json format, refer to [Payment Risk](https://github.com/LianLianPay/GitBook-Docs-en/tree/f890ea0ead0e991f87f4316e5f95d1142615c7dc/docs/payment_risk_item.md) |
| acct\_name        | Optional | String      | The name of payer, in Chinese                                                                                                                                                                                                                                                           |
| card\_no          | Optional | String      | User's card number                                                                                                                                                                                                                                                                      |
| id\_type          | Optional | String(1)   | <p>0, ID card <br> 2, Passport <br> 3, Military Officer Certificate <br> 4, Hong Kong-Macau laissez-passer <br> 6, Mainland travel permit for Taiwan residents <br> 9, Police Officer card <br> X, other certificates</p>                                                               |
| id\_no            | Optional | String      | The number of User's ID card. The length need to be either 15 or 18                                                                                                                                                                                                                     |

> `id_no`, `acct_name`, `id_type`, `card_no` are ignored if `no_agree` is present.

### Sample Request

```markup
<form action="https://wap.lianlianpay.com/travlepay.htm" method="post"> 
    <input name="req_data" value='{
        "oid_partner":"201103171000000000",
        "dt_order":"20130515094013",
        "no_order":"2013051500001",
        "busi_partner":"101001",
        "name_goods":"羽毛球",
        "info_order":"用户13958069593购买羽毛球3桶",
        "money_order":"210.97",
        "notify_url":"http://.../notify_url.shtml",
        "url_return":"http://.../return_url.htm",
        "back_url":"http://.../back_url.htm",
        "risk_item":"{\"frms_ware_category\":\"2009\",\"user_info_mercht_userno\":\"123456\",\"user_info_dt_register\":\"20141015165530\",\"user_info_full_name\":\"张三\",\"user_info_id_no\":\"3306821990012121221\",\"user_info_identify_type\":\"1\",\"user_info_identify_state\":\"1\"}",
        "valid_order":"30",
        "sign_type ":"RSA",
        "sign":"ZPZULntRpJwFmGNIVKwjLEF2Tze7bqs60rxQ22CqT5J1UlvGo575QK9z/+p+7E9cOoRoWzqR6xHZ6WVv3dloyGKDR0btvrdqPgUAoeaX/YOWzTh00vwcQ+HBtXE+vPTfAqjCTxiiSJEOY7ATCF1q7iP3sfQxhS0nDUug1LP3OLk="
        }'/>
</form>
```

## Synchronous Notification

Payment synchronous notification, a HTTP POST request, will be sent to `url_return` whenever the payment or the authorization is confirmed as successful. No synchronous notification is sent for failed transactions or transactions with exception.

> Synchronous notification sends only once, we recommend you to use [asynchronous notification](https://github.com/LianLianPay/GitBook-Docs-en/tree/f890ea0ead0e991f87f4316e5f95d1142615c7dc/docs/asyn_notification.md) or [payment result query API](/docs/easy-payment/easypay_payment_result_query.md) to obtain payment result.

### Parameters

| Name         | Required | Type       | Description                                                                                 |
| ------------ | -------- | ---------- | ------------------------------------------------------------------------------------------- |
| oid\_partner | Required | String(18) | The unique identification assigned to the merchant. E.g. 201304121000001004                 |
| sign\_type   | Required | String(3)  | RSA                                                                                         |
| sign         | Required | String     | Signature value                                                                             |
| no\_order    | Required | String(32) | Merchant order No.                                                                          |
| dt\_order    | Required | String(14) | Merchant order date. Format: yyyyMMddHHmmss, E.g. 20170801225714                            |
| oid\_paybill | Required | String(18) | Unique transaction No. in LianLian system. E.g. 2011030900001098                            |
| money\_order | Required | String(12) | Merchant order amount, range: 0.01 \~ 100,000,000.00, 2 decimal places are expected, in CNY |
| result\_pay  | Required | String     | Payment result. E.g. SUCCESS                                                                |
| settle\_date | Optional | String(8)  | Format YYYYMMDD. Returns when payment is successful                                         |

There is no need to send response for synchronous notification.

### Sample Synchronous Notification

```markup
{url_return}?res_data={
    "oid_partner":"201103171000000000",
    "dt_order":"20130515094013",
    "no_order":"2013051500001",
    "oid_paybill":"2013051613121201",
    "money_order":"210.97",
    "result_pay":"SUCCESS",
    "settle_date":"20130516",
    "sign_type":"RSA", 
    "sign":"ZPZULntRpJwFmGNIVKwjLEF2Tze7bqs60rxQ22CqT5J1UlvGo575QK9z/+p+7E9cOoRoWzqR6xHZ6WVv3dloyGKDR0btvrdqPgUAoeaX/YOWzTh00vwcQ+HBtXE+vPTfAqjCTxiiSJEOY7ATCF1q7iP3sfQxhS0nDUug1LP3OLk="
}
```