There is some chance to get the weapon categories like the CSGOSTASH in an extra field?
{
"id": "skin-1967916",
"name": "Tec-9 | Bamboo Forest",
"description": "An ideal pistol for the Terrorist on the move, the Tec-9 is lethal in close quarters and features a high magazine capacity.",
"weapon": "Tec-9",
_**"category": "Pistols"**_
"pattern": "Bamboo Forest",
"min_float": 0,
"max_float": 0.6,
"rarity": "Consumer Grade",
"stattrak": false,
"paint_index": "459",
"image": "https://steamcdn-a.akamaihd.net/apps/730/icons/econ/default_generated/weapon_tec9_hy_bamboo_jungle_light_large.31268450fbb5b5c2221e6eaadbe7124cf85f3e1d.png"
},
For example, pistols, rifles, smg's...