Important

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HTTP Header Specifics

As mentioned in the Client Requirements and Authentication sections, to perform an JSON:API request successfully, it is important to provide the correct Accept, Content-Type and Authentication parameters, e.g.,:

GET /api/users HTTP/1.1
Accept: application/vnd.api+json
Authorization: Bearer <access token>

Also, by providing additional requests header parameters, it is possible to retrieve additional information, such as the total number of records per certain resource for the GET and DELETE methods or a total number of affected records for the DELETE method. The X-Include request header can be used for such purposes.

The following table describes all existing keys for the X-Include header.

HTTP Method	X-Include key	Response Header	Description
any	noHateoas		Removes all HATEOAS related links from the response.
GET	totalCount	X-Include-Total-Count	Returns the total number of entities.
DELETE	totalCount	X-Include-Total-Count	Returns the total number of entities.
DELETE	deletedCount	X-Include-Deleted-Count	Returns the number of deleted entities.

Header Examples

Example 1. Total Number of Existing Records

Retrieve the total count of resource records.

Request header

GET /api/users HTTP/1.1
Accept: application/vnd.api+json
X-Include: totalCount

Response

HTTP/1.1 200 OK
X-Include-Total-Count: 49
Content-Type: application/vnd.api+json
Date: Fri, 23 Sep 2016 12:27:05 GMT
Content-Length: 585
Keep-Alive: timeout=5, max=100
Connection: Keep-Alive

Example 2. Total Number of Deleted Records

Retrieve the total number of deleted records of the resource

Request header

DELETE /api/users HTTP/1.1
Accept: application/vnd.api+json
X-Include: deletedCount

Example 3. Conditions for the Delete Operation

Request query string contains a filter that specifies conditions for deletion operation. Filters are described in more detail in the Filters section.

Request header

DELETE /api/users?filter[id]=21,22 HTTP/1.1
Accept: application/vnd.api+json

Response

HTTP/1.1 204 No Content
X-Include-Deleted-Count: 2
Date: Fri, 23 Sep 2016 12:38:47 GMT
Content-Length: 0
Keep-Alive: timeout=5, max=100
Connection: Keep-Alive

The following request headers are available for the storefront API.

HTTP Method	Request Header	Description
any	X-Localization-ID	By default, all locale sensitive data are received and returned in the locale selected for the current website. This header can be used to specify another locale. The list of available localization IDs can be received via the /api/localizations resource.
any	X-Currency	By default, all currency-related data are received and returned in the currency selected for the current website. This header can be used to specify another currency. The list of available currency codes can be received via the /api/currencies resource. Note: This header is available for OroCommerce Enterprise Edition only.