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Filtering Includes
Much like standard filters, filtering includes gives you the ability to narrow down the results of a request to specific subset of data. The difference is what you are operating on. The includes themselves are the part of the response that is being filtered, not the primary service.
For example, when you make a request like /products?include=items:filter(brand_id|135)
, what you are actually saying is: Give me all
Products, and include their Items, but only
return those included Items that are of Brand
135 (FLY Racing). You are still going to get all Products, that part
doesn't change, the only part of the response that changes is the included Items will be filtered
down to FLY Racing Items.
The parameter syntax structure is: ?include=service:filter(field|value|operator)
.
Operators | |
---|---|
eq
|
Equal* |
ne
|
Not equal |
lt
|
Less than |
lte or le
|
Less than or equal to |
gt
|
Greater than |
gte or ge
|
Greater than or equal to |
pre
|
Prefix / Starts with |
* Default behavior if an operator is not sent.
Examples
In this example, all the Products along with their included Items would be returned. However, the included Items would be filtered down
to only the Items that have a list_price
of lt
(less than) 200
dollars.
https://api.wps-inc.com/products?include=items:filter(list_price|200|lt)
In this example, all the Products along with their included Items would be returned. However, the included Items
would be filtered down to only the Items that have a sku
that are
pre
(prefixed with) 87-40
.
https://api.wps-inc.com/products?include=items:filter(sku|87-40|pre)