const inputBody = '{
  "type": "object",
  "properties": {
    "params": {
      "type": "object",
      "properties": {
        "item": {
          "type": "string",
          "description": "MongoDB ObjectId of the item",
          "example": "60f6c4d2b4e6a51234567890"
        },
        "warehouseId": {
          "type": "string",
          "description": "MongoDB ObjectId of the warehouse",
          "example": "60f6c4d2b4e6a59876543210"
        },
        "onHand": {
          "type": "number",
          "description": "Quantity currently on hand",
          "example": 100
        },
        "committed": {
          "type": "number",
          "description": "Quantity committed to orders",
          "example": 50
        },
        "onOrder": {
          "type": "number",
          "description": "Quantity currently on order",
          "example": 30
        },
        "unitOfMeasure": {
          "type": "string",
          "example": "pcs"
        },
        "itemType": {
          "type": "string",
          "example": "part"
        },
        "warehouseName": {
          "type": "string",
          "example": "Main Warehouse"
        },
        "brandName": {
          "type": "string",
          "example": "Parker"
        },
        "partNumber": {
          "type": "string",
          "example": "123-ABC"
        },
        "orgPartNumber": {
          "type": "string",
          "example": "ORG-123-ABC"
        }
      }
    }
  }
}';
const headers = {
  'Content-Type':'application/json',
  'Accept':'application/json'
};

fetch('https://goldleaf.app/api/v1/inventoryitem/update',
{
  method: 'POST',
  body: inputBody,
  headers: headers
})
.then(function(res) {
    return res.json();
}).then(function(body) {
    console.log(body);
});