The requests presented so far contain only one operation. Product Advertising API enables you to improve performance by submitting more than one request at the same time. There are two ways to do this:
- Batch request
A request that uses one operation with up to two sets of parameters.
- Multiple ItemIds
ItemLookuprequest, you can include up to ten comma-separated values for
Batch requests are not supported for the cart operations:
There may be occasions when you want to use the same operation in two requests, each one
using different input parameters. For example, you might want to run an
ItemLookup request several times, each time looking up a different item. To
accomplish this task, you can submit two requests or one batch request.
The following figure shows how two simple requests can be combined into one batch request.
The new syntax introduced in the batch request centers on the ways in which the operation parameters are defined. Either the parameter values are different or they are shared between the simple requests in the batch request.
Batch requests can contain up to two sets of parameters.
The Product Advertising API supports
ItemLookup batch requests only when the
ItemType is an EAN (European Article Number), ISBN (International Standard
Book Number), EISBN (Electronic International Standard Book Number), or ASIN (Amazon
Standard Item Number).