NaturesAura/src/main/resources/data/naturesaura/recipes/placer.json

{
    "type": "minecraft:crafting_shaped",
    "pattern": [
        "CHC",
        "CDC",
        "CIC"
    ],
    "key": {
        "D": {
            "item": "minecraft:dispenser"
        },
        "I": {
            "item": "naturesaura:infused_iron"
        },
        "H": {
            "item": "minecraft:hopper"
        },
        "C": {
            "item": "minecraft:cobblestone"
        }
    },
    "result": {
        "item": "naturesaura:placer"
    }
}