minecraft-kajetans-mod/src/main/resources/data/km/recipes/battleaxe/wooden_battleaxe.json

{
  "type": "minecraft:crafting_shaped",
  "pattern": [
    " XX",
    " #X",
    "#  "
  ],
  "key": {
    "#": {
      "item": "minecraft:stick"
    },
    "X": {
      "tag": "minecraft:planks"
    }
  },
  "result": {
    "item": "km:wooden_battleaxe"
  }
}