geode-docs/rest_apps/post_if_absent_data.html.md.erb

---
title:  POST /geode/v1/{region}?key=<key>
---

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Create (put-if-absent) data in region.

## Resource URL

``` pre
http://<hostname_or_http-service-bind-address>:<http-service-port>/geode/v1/{region}?key=<key>
```

## Parameters

<table>
<colgroup>
<col width="33%" />
<col width="33%" />
<col width="34%" />
</colgroup>
<thead>
<tr class="header">
<th>Parameter</th>
<th>Description</th>
<th>Example Values</th>
</tr>
</thead>
<tbody>
<tr class="odd">
<td>key</td>
<td><strong>Optional.</strong> If you do not specify a key in the URL, a key will automatically be generated for you.</td>
<td>123
<p>myOrder</p></td>
</tr>
</tbody>
</table>

## Example Request

``` pre
Request Payload: application/json
POST /geode/v1/orders?key=2

Accept: application/json
Content-Type: application/json
{
    "@type":  "org.apache.geode.web.rest.domain.Order",
     "purchaseOrderNo": 112,
     "customerId": 1012,
     "description":  "Purchase Order for myCompany",
     "orderDate":  "02/10/2014",
     "deliveryDate":  "02/20/2014",
     "contact":  "John Doe",
     "email":  "John.Doe@example.com",
     "phone":  "01-2048096",
     "totalPrice": 225,
     "items": [
        {
             "itemNo": 1,
             "description":  "Product2, PartA",
             "quantity": 10,
             "unitPrice": 5,
             "totalPrice": 50
        },
        {
             "itemNo": 2,
             "description":  "Product2, PartB",
             "quantity": 20,
             "unitPrice": 20,
             "totalPrice": 400
        }
    ]
}
```

## Example Success Response

``` pre
Response Payload: null
201 CREATED
Location: http://localhost:8080/geode/v1/orders/2
```

## Error Codes

| Status Code               | Description                                                                                                                      |
|---------------------------|----------------------------------------------------------------------------------------------------------------------------------|
| 400 BAD REQUEST           | Returned if JSON content is malformed.                                                                                           |
| 404 NOT FOUND             | Returned if the specified region does not exist.                                                                                 |
| 409 CONFLICT              | Returned if the provided key already exists in the region.                                                                       |
| 500 INTERNAL SERVER ERROR | Error encountered at <%=vars.product_name%> server. Check the HTTP response body for a stack trace of the exception. |

## Example Error Response

``` pre
409 Conflict
Location:http://localhost:8080/geode/v1/orders/2
Content-Type: application/json

{
     "purchaseOrderNo": 112,
     "customerId": 1012,
     "description":  "Purchase Order for myCompany",
     "orderDate":  "02/10/2014",
     "deliveryDate":  "02/20/2014",
     "contact":  "John Doe",
     "email":  "John.Doe@example.com",
     "phone":  "01-2048096",
     "totalPrice": 225,
     "items": [
        {
             "itemNo": 1,
             "description":  "Product2, PartA",
             "quantity": 10,
             "unitPrice": 5,
             "totalPrice": 50
        },
        {
             "itemNo": 2,
             "description":  "Product2, PartB",
             "quantity": 20,
             "unitPrice": 20,
             "totalPrice": 400
        }
    ]
}
```