# Transparent Commerce purchase flow

Use Transparent Commerce™ to instantly purchase a product on behalf of a customer during an authenticated customer session. This API bypasses calling the [Apply Shopper](https://www.digitalriver.com/docs/commerce-api-reference/#tag/Apply-Shopper) and [Submit Cart](https://www.digitalriver.com/docs/commerce-api-reference/#tag/Submit-Cart) resources separately and instantly purchases a single product. A typical example of a product purchased via this resource is an auto-renewal, such as a subscription.

The product direct purchase API performs the following actions with one Shopper call:

1. Adds a product to the cart.
2. Applies the default customer address to the cart.
3. Applies the default payment option to the cart.
4. Submits the cart.
5. Creates an order.

{% hint style="info" %}
**Prerequisite**: The request must be made with a valid full-access token.
{% endhint %}

Send the `POST shoppers/me/products/{productId}/purchase` request with the specific product ID for the product the customer wants to purchase. 

The following example purchases a product with a product ID of `291233200`. The response header contains a `Location` header, as shown in line 4, to the order created for the transaction. The ID of the order is `1234567890`. The request and response bodies are empty.

{% tabs %}
{% tab title="URI" %}

```http
POST https://api.digitalriver.com/v1/shoppers/me/products/291233200/purchase HTTP/1.1
```

{% endtab %}

{% tab title="Response header" %}

```
 HTTP/1.1 201 Created
 Server: Apache
 X-Server-Name: server.xyz.digitalriverws.net
 Location: https://api.digitalriver.com/shoppers/me/orders/1234567890
 Content-Length: 0
 Accept-Ranges: bytes
 Date: Fri, 17 Jan 2014 16:46:30 GMT
 Age: 0
 Access-Control-Allow-Origin: *
 HTTP/1.1 201 Created
 Server: Apache
 X-Server-Name: server.xyz.digitalriverws.net
 Location: https://api.digitalriver.com/shoppers/me/orders/1234567890
 Content-Length: 0
 Accept-Ranges: bytes
 Date: Fri, 17 Jan 2014 16:46:30 GMT
 Age: 0
 Access-Control-Allow-Origin: *
```

{% endtab %}
{% endtabs %}

No further calls are required. If applicable, you can make follow-up calls to get the order by its ID or the order history for the customer.


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# Agent Instructions: Querying This Documentation

If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question.

Perform an HTTP GET request on the current page URL with the `ask` query parameter:

```
GET https://docs.digitalriver.com/commerce-api/general-resources/global-commerce/transparent-commerce-purchase-flow.md?ask=<question>
```

The question should be specific, self-contained, and written in natural language.
The response will contain a direct answer to the question and relevant excerpts and sources from the documentation.

Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.