request :
https://wallhaven.cc/api/v1/search?apiKey=<your key>&categories=111&purity=001&sorting=random&order=desc
response:
{
"data": [],
"meta": {
"current_page": 1,
"last_page": 1,
"per_page": 24,
"total": 0,
"query": null,
"seed": "mWY8Ze"
}
}