13.1 Batch URL
The URL for a batch operation is obtained by appending /$batch to the resource kind URL. For example:
http://www.example.com/sdata/myApp/myContract/-/accounts/$batch
A consumer should use this URL to POST a batch of operations on accounts.
SData providers MAY support batching. They MUST support the $batch URL on all resource kinds that have the sme:batchingMode flag set to a value other than none.