Version headers are mandatory for all Stats API requests.
Specify the version of the API in the accept header parameter using the RFC 2616 protocol.
For example, to use version 3 of the API, set the accept header parameter to application/vnd.newvoicemedia.v3+json:
Accept: application/vnd.newvoicemedia.v3+json
If you do not include a version, you will receive the following error:
HTTP/1.1 400
Content-Length: 35
{
"statusCode": 400,
"error": "Bad Request",
"message": "Invalid Accept header!"
}
If you specify an invalid version, you will receive the following error:
HTTP/1.1 400
Content-Length: 89
{
"statusCode": 400,
"error": "Bad Request",
"message": "Invalid api-version! Valid values: 2,3"
}