======  Invoice Retrieval by Order ID API  ======

===== What is the Invoice Retrieval by Order ID API ? =====

The Invoice Retrieval by Order ID API allows to download for every order the Invoice if one is present.

===== Who Should Use this API? =====

This API is intended to be used in white label business model approach where you want to be in control of the Invoice.

===== Try it Out =====

Do you have questions about how your server should retrieve Invoice of the order? Visiting our demo page will help you out.

We’ve developed a sandbox server, which is an isolated server (not hooked up to a payment system or production environment, allowing you to test the service without getting billed) to try out your code and integration with us. As the sandbox server is an isolated server, it requires different credentials than the production site.

**The demo page of Invoice Retrieval by Order ID API  on sandbox server:**

https://imatsandbox.materialise.net/api/demo/documents-retrieval-by-order-id-api.htm

The sandbox and production server contain API demo pages which send well-formed API requests to our site.

**The demo page of Invoice Retrieval by Order ID API  on production server:**

https://i.materialise.com/api/demo/documents-retrieval-by-order-id-api.htm

===== How Does it Work? =====

This API requires the personal API code. It is therefore not possible to use AJAX requests.

The **Invoice Retrieval by Order ID API ** works by posting data to our service.

You can use either XML or JSON formats for posting. The HTTP encoding type of a particular request depends on the type of API you are going to use. This will be described in the corresponding section of this page.

To specify the exact content type which your client can accept and parse, the Accept header in your request has to be set to one of the following encoding types:

•	text/json\\
•	text/xml\\

To retrieve Invoice of the order through the **Invoice Retrieval by Order ID API **, POST a well-structured request via “HTTPS” to this URL:

<code>https://i.materialise.com/web-api/order/[Order ID]/invoice</code>

To use APIs of the sandbox, the POST needs to be submitted to:

<code>https://imatsandbox.materialise.net/web-api/order/[Order ID]/invoice</code>

The API code needs to be specified in the ''APICode'' HTTP header.

The Invoice retrieval should be done using GET HTTP Method:

<code>Request Method:GET</code>

===== Documentation =====

=== Request examples ===

<code>
Request Method:GET
...
Accept:text/json
APICode:A1F1BAE8-3F1B-4B8D-8D95-D19E17595034
</code>

==== Structure of the Response ====

In case of success, ''Status Code:200'' is shown in the response. In the body of response HTML code is retrieved. If to open it code as html page, you will have option to download Invoice file.

===  Errors Section of the Response ===

In case of error in the request or when Invoice cannot be retrived, one of following error appears in the response

^Code	^Message	^Description^
|100	|Order ID is wrong |Wrong Order ID was determined in request |	
|101	|Wrong API code	|The order was created by using different API code. |
|102	|No invoice document found in order	|No custom Invoice file is provided by you for this order or is not available |

**Example of Response with error in JSON**

<code>
{
    "error":{
        "message":"No document",
        "code":102
    }
}
</code>

**Example of Response with error in XML**

<code>
<InvoiceResponse xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
  <Error>
    <Message>Order ID is wrong</Message>
    <Code>100</Code>
  </Error>
</InvoiceResponse>
</code>