curl --request POST \
  --url 'https://api.example.com/v3/recommend/products?api_key=' \
  --header 'Content-Type: application/json' \
  --data '
{
  "merchant": "<string>",
  "market": "<string>",
  "locale": "<string>",
  "type": "<string>",
  "product_ids": [],
  "limit": 64,
  "session_id": "<string>"
}
'

{
  "displays": [
    {
      "variant_index": 123,
      "variant_displays": [
        {}
      ],
      "variant_skus": [
        "<string>"
      ],
      "variant_product_ids": [
        "<string>"
      ]
    }
  ],
  "error": "<string>"
}