Format System Query Option ($format)
The $format System Query Option is used to return a response using the media type specified by the query option.
The following table lists valid values for the $format query string option:
$format Value | Response Media Type |
---|---|
Atom | application/atom+xml |
Xml | application/xml |
Json | application/json |
Any other IANA-defined content type | Any IANA-defined content type |
A service-specific value indicating a format specific to the specific OData service | Any IANA-defined content type |
For example, to return the /Tenants collection in xml format, send the following request:
Note that the $format query option in a request URI takes precedence over the value specified in the Accept request header. That is, if you specify the application/json value in the Accept request header and the application/xml value in the $format query, REST API will return the response in the application/xml format.