{
  "type": "minecraft:crafting_shaped",
  "category": "redstone",
  "key": {
    "C": "minecraft:chest",
    "I": "minecraft:iron_ingot",
    "A": "minecraft:lightning_rod"
  },
  "pattern": [
    "IAI",
    "ICI",
    " I "
  ],
  "result": {
    "count": 1,
    "id": "minecraft:hopper"
  }
}