## Batching

In order to reduce the number of API calls for mass updates the system allows to batch requests into a single HTTP call.
To make this work, some prerequisites have to be met:

* As the URL query string is the same for all contained requests, the URL needs to be a valid URL for every contained request. In other words: Only objects of the same type and the same operation can be batched together.
* The batched request body needs to be valid JSON. So batching simply means that the request bodies of individual requests are placed into a wrapping array in full (see example below).
* The responses will equally be batched (i.e. an array of response bodies).
* Every request is processed individually. I.e. one can fail while another one can succeed. There is no “all or nothing” or transactional logic across requests.


Example:


```json
[
   {
      "operationType":"update",
      "data":{
         "typedId":"148.P",
         "label":"Test2"
      },
      "oldValues":{
         "currency":"EUR",
         "lastUpdateDate":"2011-05-03",
         "label":"Test",
         "sku":"001",
         "unitOfMeasure":"EA",
         "version":0,
         "typedId":"148.P"
      }
   },
   {
      "operationType":"update",
      "data":{
         "typedId":"148.P",
         "label":"Test2"
      },
      "oldValues":{
         "currency":"EUR",
         "lastUpdateDate":"2011-05-03",
         "label":"Test",
         "sku":"001",
         "unitOfMeasure":"EA",
         "version":0,
         "typedId":"148.P"
      }
   }
]
```