legado/app/src/main/assets/defaultData/coverRule.json

{
  "enable": true,
  "searchUrl": "https://api.yousuu.com/api/search?type=title&value={{key}}&page=1&highlight=0&from=search",
  "coverRule": "@js:java.getString(\"$..books[?(@.author == '\" + book.author + \"')].cover\")"
}