​
Filtering

You can filter out collection results by applying filter parameters to your API calls, eg. 
curl --request GET \
     --url 'https://demo.spreecommerce.org/api/v2/storefront/products' \
     --header 'Accept: application/vnd.api+json' \
     --data-urlencode 'filter[skus]=classic-varsity-top-large'
You can combine multiple filters to find only records that match both criteria: 
curl --request GET \
     --url 'https://demo.spreecommerce.org/api/v2/storefront/products' \
     --header 'Accept: application/vnd.api+json' \
     --data-urlencode 'filter[price]=10,100' \
     --data-urlencode 'filter[name]=Classic Varsity'
Products list endpoint covers how to filter by these attributes in more detail.

​
Sorting

Sorting is being performed by supplying sort parameter in your API calls. Ascending sort, eg. 
curl --request GET \
     --url 'https://demo.spreecommerce.org/api/v2/storefront/products?sort=price' \
     --header 'Accept: application/vnd.api+json'
Descending sort is performed by adding - before the column name, eg: 
curl --request GET \
     --url 'https://demo.spreecommerce.org/api/v2/storefront/products?sort=-price' \
     --header 'Accept: application/vnd.api+json'
You can also combine multiple attributes: 
curl --request GET \
     --url 'https://demo.spreecommerce.org/api/v2/storefront/products' \
     --data-urlencode 'sort=-price,updated_at' \
     --header 'Accept: application/vnd.api+json'
Each endpoint includes a list of attributes you can sort by. The default ones are always id, created_at, updated_at and name.