(Quick Reference)
                Service: Create an attribute
Description: Returns the created attribute in json format when successful. Returns a json response, describing the failure condition when unsuccessful.
URL: 
https://BASE_URL/api/VERSION/attributes
 Method: POST
Request content type: application/json
Parameters:
| Name | Description | Type | Required | Example values | 
|---|
| reference |   | String | yes |   | 
| name |   | String | yes |   | 
| type | Should be equal to COLOR,STRING or NUMBER. | String | yes | COLOR,STRING,NUMBER | 
Attribute values parameterParameter name: values
Parameter type: a json structure
| Name | Description | Type | Required | Example values | 
|---|
| value |   | String | yes | black | 
| color | Color code must be provided if type parameter is equal to COLOR | String | - | #000000 | 
Success Output
 Status: HTTP/1.1 201 Created 
{
  "id": 10,
  "reference": "europe_shoe_size",
  "name": "Women's shoe size",
  "type": "NUMBER",
  "attributeValues": [
    {
      "id": 35,
      "value": "35",
      "href": "/api/v1.0/attributeValues/35"
    },
    {
      "id": 36,
      "value": "36",
      "href": "/api/v1.0/attributeValues/36"
    },
    {
      "id": 37,
      "value": "37",
      "href": "/api/v1.0/attributeValues/37"
    },
    {
      "id": 38,
      "value": "38",
      "href": "/api/v1.0/attributeValues/38"
    },
    {
      "id": 39,
      "value": "39",
      "href": "/api/v1.0/attributeValues/39"
    },
    {
      "id": 40,
      "value": "40",
      "href": "/api/v1.0/attributeValues/40"
    },
    {
      "id": 41,
      "value": "42",
      "href": "/api/v1.0/attributeValues/41"
    }
  ],
  "organization": "entity1",
  "dateCreated": "2016-08-22T14:10:44Z",
  "lastUpdated": "2016-08-22T14:10:44Z"
} 
 Failure Output
  Status: HTTP/1.1 400 Bad Request 
{
  "error": "missing_param",
  "error_description": "name parameter is missing"
} 
{
  "error": "invalid_param_type",
  "error_description": "An invalid value was specified for parameter: type (must be in list)"
}{
  "error": "save_failed",
  "error_description": "Failed to save instance"
}