superb-warfare/src/main/resources/data/superbwarfare/recipe/iron_spring_crafting.json

{
  "type": "minecraft:crafting_shaped",
  "category": "misc",
  "pattern": [
    "a",
    "a",
    "a"
  ],
  "key": {
    "a": {
      "item": "minecraft:iron_ingot"
    }
  },
  "result": {
    "id": "superbwarfare:iron_spring",
    "count": 1
  }
}