> For the complete documentation index, see [llms.txt](https://docs.2checkout.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.2checkout.com/json-rpc-api-reference/json-rpc-api-6.0/api-requests/place-orders-with-catalog-products/use-wechat-pay.md).

# Use WeChat Pay

Place an order for catalog products defined in your Control Panel and collect the payment using WeChat Pay.

## Requirements

Only Chinese shoppers are able to purchase using WeChat Pay. Make sure the billing country code is set to CN.

## Supported currencies

* USD
* HKD
* CNY

## Workflow

1. Shoppers select WeChat as payment option in the interface you provide to them.
2. Create the order object. Use WE\_CHAT\_PAY as the type of the `PaymentDetails` object, and include `ReturnURL` and `CancelURL`.
3. Use the **placeOrder** method to send the data to 2Checkout.
4. Once you place the order, 2Checkout logs it into the system. At this point in time, the status of the order is PENDING.
5. 2Checkout returns an Order object as the output of the **placeOrder** method. 
6. Use the `PaymentMethod` object to create a redirect URL for the shoppers, concatenating the values of the Href and avng8apitoken parameters. Here's an example of the redirect URL:

   ```
   https://api.2checkout.com/4.0/scripts/we_chat_pay/authorize/?avng8apitoken=1abc7fd72d008428
   ```
7. After being redirected to WeChat Pay, shoppers need to scan the QR code provided, using the WeChat smartphone app.
8. After customers enter their payment password, WeChat notifies 2Checkout if the payment is approved, and the status of the order becomes COMPLETE.
9. Shoppers are redirected to the `RedirectURL` from the Order information object. In case the payment fails, shoppers are redirected to the `CancelURL`.

## Request parameters

<table><thead><tr><th width="120.13330078125">Parameter</th><th>Type / Description</th></tr></thead><tbody><tr><td><code>sessionID</code></td><td><p><strong>Required (string)</strong></p><p>Session identifier, the output of the <strong>Login</strong> method. Include <code>sessionID</code> into all your requests. 2Checkout throws an exception if the values are incorrect. The <code>sessionID</code> expires in <strong>10 minutes</strong>.</p></td></tr><tr><td><a href="/json-rpc-api-reference/json-rpc-api-6.0/api-requests/place-orders-with-catalog-products.md"><code>Order</code></a></td><td><p><strong>Required (object)</strong></p><p>Object designed to collect all data necessary for an order, including billing, product/subscription plan and payment details. To place an order with WeChat, use WE_CHAT_PAY as the type of the <code>PaymentDetails</code> object and provide a <code>ReturnURL</code> and a <code>CancelURL</code> as part of the <code>PaymentMethod</code> object. See code sample.</p></td></tr></tbody></table>

### Request sample

```php
<?php

require ('PATH_TO_AUTH');

$Order = new stdClass();
$Order->RefNo = NULL;
$Order->Currency = 'usd';
$Order->Country = 'CN';
$Order->Language = 'en';
$Order->CustomerIP = '91.220.121.21';
$Order->ExternalReference = NULL;
$Order->Source = NULL;
$Order->Affiliate = new stdClass();
$Order->Affiliate->AffiliateCode = 'Partner123'
$Order->Affiliate->AffiliateSource = 'MobilePlatform'
$Order->CustomerReference = NULL;
$Order->Items = array();
$Order->Items[0] = new stdClass();
$Order->Items[0]->Code = 'my_subscription_1';
$Order->Items[0]->Quantity = 1;
$Order->Items[0]->PriceOptions = NULL;
$Order->Items[0]->SKU = NULL;
$Order->Items[0]->Price = NULL;
$Order->Items[0]->CrossSell = NULL;
$Order->Items[0]->Trial = false;
$Order->Items[0]->AdditionalFields = NULL;
$Order->Items[0]->SubscriptionStartDate = NULL; //If empty or null, subscriptions become active when purchase is made.
$Order->BillingDetails = new stdClass();
$Order->BillingDetails->FirstName = 'Test Cosmin API';
$Order->BillingDetails->LastName = 'Cosmin API';
$Order->BillingDetails->CountryCode = 'CN';
$Order->BillingDetails->State = 'California';
$Order->BillingDetails->City = 'LA';
$Order->BillingDetails->Address1 = 'Address example';
$Order->BillingDetails->Address2 = NULL;
$Order->BillingDetails->Zip = '90210';
$Order->BillingDetails->Email = 'cosmin.deftu@2checkout.com';
$Order->BillingDetails->Phone = NULL;
$Order->BillingDetails->Company = NULL;
$Order->DeliveryDetails = NULL;

$Order->PaymentDetails = new stdClass ();
$Order->PaymentDetails->Type = 'WE_CHAT_PAY';
$Order->PaymentDetails->Currency = 'USD';
$Order->PaymentDetails->PaymentMethod = new stdClass ();
$Order->PaymentDetails->CustomerIP = '91.220.121.21';
$Order->PaymentDetails->PaymentMethod->ReturnURL = 'http://yourreturnurl.com';
$Order->PaymentDetails->PaymentMethod->CancelURL= 'http://yourcancelurl.com';

$Order->Promotions = NULL;
$Order->AdditionalFields = NULL;
$Order->LocalTime = NULL;
$Order->GiftDetails = NULL;

$jsonRpcRequest = array (
'method' => 'placeOrder',
'params' => array($sessionID, $Order),
'id' => $i++,
'jsonrpc' => '2.0'
);

$output = callRPC($jsonRpcRequest, $host);

$wechatredirect = $output->PaymentDetails->PaymentMethod->Authorize->Href."/?avng8apitoken=".$output->PaymentDetails->PaymentMethod->Authorize->Params->avng8apitoken;

header('Location:' . $wechatredirect);
```

## Response parameters

<table><thead><tr><th width="183.066650390625">Parameter</th><th>Type / Description</th></tr></thead><tbody><tr><td><a href="/json-rpc-api-reference/json-rpc-api-6.0/api-responses/order-with-catalog-products.md"><code>Order information</code></a></td><td><p><strong>Object</strong></p><p>Object containing order information.</p></td></tr></tbody></table>


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