Shopizer API error: java.lang.NullPointerException: Product must not be null

[itonyeig]

I am trying to make a post request with Shopizer's API to create a new porduct.

I can easily create a product through shopizer's admin interface, however, there are certain fields that can only be created through the API.

According to shopizer's swagger docs here you need the following JSON object in your post request to create a product:

{
  "attributes": [
    {
      "attributeDefault": true,
      "attributeDisplayOnly": true,
      "id": 0,
      "option": {
        "code": "string",
        "id": 0,
        "readOnly": true,
        "type": "string"
      },
      "optionValue": {
        "code": "string",
        "defaultValue": true,
        "id": 0,
        "image": "string",
        "name": "string",
        "sortOrder": 0
      },
      "productAttributePrice": 0,
      "productAttributeWeight": 0,
      "productId": 0,
      "sortOrder": 0
    }
  ],
  "available": true,
  "categories": [
    {
      "code": "string",
      "id": 0
    }
  ],
  "creationDate": "string",
  "dateAvailable": "string",
  "descriptions": [
    {
      "description": "string",
      "friendlyUrl": "string",
      "highlights": "string",
      "id": 0,
      "keyWords": "string",
      "language": "string",
      "metaDescription": "string",
      "name": "string",
      "title": "string"
    }
  ],
  "id": 0,
  "images": [
    {
      "bytes": "string",
      "contentType": "string",
      "defaultImage": true,
      "files": [
        null
      ],
      "id": 0,
      "imageType": 0,
      "imageUrl": "string",
      "name": "string",
      "path": "string"
    }
  ],
  "owner": {
    "address": {
      "address": "string",
      "billingAddress": true,
      "bilstateOther": "string",
      "city": "string",
      "company": "string",
      "country": "string",
      "countryCode": "string",
      "firstName": "string",
      "lastName": "string",
      "latitude": "string",
      "longitude": "string",
      "phone": "string",
      "postalCode": "string",
      "stateProvince": "string",
      "zone": "string"
    },
    "emailAddress": "string",
    "firstName": "string",
    "id": 0,
    "lastName": "string"
  },
  "preOrder": true,
  "price": 0,
  "productIsFree": true,
  "productPrices": [
    {
      "code": "string",
      "defaultPrice": true,
      "descriptions": [
        {
          "description": "string",
          "friendlyUrl": "string",
          "highlights": "string",
          "id": 0,
          "keyWords": "string",
          "language": "string",
          "metaDescription": "string",
          "name": "string",
          "priceAppender": "string",
          "title": "string"
        }
      ],
      "discountEndDate": "string",
      "discountStartDate": "string",
      "discounted": true,
      "discountedPrice": 0,
      "id": 0,
      "originalPrice": 0
    }
  ],
  "productShipeable": true,
  "productSpecifications": {
    "dimensionUnitOfMeasure": "cm",
    "height": 0,
    "length": 0,
    "manufacturer": "string",
    "model": "string",
    "weight": 0,
    "weightUnitOfMeasure": "g",
    "width": 0
  },
  "productVirtual": true,
  "quantity": 0,
  "quantityOrderMaximum": 0,
  "quantityOrderMinimum": 0,
  "rating": 0,
  "ratingCount": 0,
  "refSku": "string",
  "relatedProducts": [
    {
      "id": 0,
      "relationShipType": "string"
    }
  ],
  "rentalDuration": 0,
  "rentalPeriod": 0,
  "sku": "string",
  "sortOrder": 0,
  "type": "string",
  "visible": true
}

Here is my object:

{
   "attributes": [
    {
      "attributeDefault": true,
      "attributeDisplayOnly": true,
      "id": 0,
      "option": {
        "code": "colour",
        "id": 50,
        "type": "Radio"
      },
      "optionValue": {
        "code": "Black",
        "defaultValue": true,
        "id": 1,
        "image": "",
        "name": "Black",
        "sortOrder": 0
      },
      "productAttributePrice": 0,
      "productAttributeWeight":null,
      "productId": 10,
      "sortOrder": 0
    }
  ],
  "available": true,
  "categories": [
    {
      "code": "FashionCat",
      "id": 5
    }
  ],
  "creationDate": "2021-08-13",
  "dateAvailable": "2021-08-13",
  "descriptions": [
    {
      "description": "this product is a test",
      "friendlyUrl": "slippers",
      "highlights": "testing",
      "id": 120,
      "keyWords": "slippers",
      "language": "en",
      "metaDescription": "",
      "name": "Slippers",
      "title": ""
    }
  ],
  "id": 111,
  "images": [],
  "owner": {},
  "preOrder": true,
  "price": 1000,
  "productIsFree": false,
  "productPrices": [
    {
      "code": "testcode",
      "defaultPrice": false,
      "descriptions": [
        {
          "description": "test product price",
          "friendlyUrl": "test-product-price",
          "highlights": "none",
          "id": 0,
          "keyWords": "none",
          "language": "en",
          "metaDescription": "none",
          "name": "Test Product Price",
          "priceAppender": "none",
          "title": ""
        }
      ],
      "discountEndDate": "string",
      "discountStartDate": "string",
      "discounted": true,
      "discountedPrice": 0,
      "id": 0,
      "originalPrice": 0
    }
  ],
  
  "productShipeable": false,
  "productSpecifications": {
    "dimensionUnitOfMeasure": "cm",
    "height": 40,
    "length": 10,
    "manufacturer": "Prada",
    "model": "no",
    "weight": 15,
    "weightUnitOfMeasure": "g",
    "width": 11
  },
  "productVirtual": false,
  "quantity": 1000,
  "quantityOrderMaximum": 10,
  "quantityOrderMinimum": 1,
  "rating": 4,
  "ratingCount": 2,
  "refSku": "",
  "rentalDuration": 0,
  "rentalPeriod": 0,
  "sku": "mik123456",
  "sortOrder": 0,
  "type": "GENERAL",
  "visible": true
}

And I get the following response:

{
  "errorCode": null,
  "message": "java.lang.NullPointerException: Product must not be null"
}

I also tried truncating my JSON using only the required fields in shopizer's admin and I came up this this object:

{
    "attributes": [
        {
          "attributeDefault": true,
          "attributeDisplayOnly": true,
          "id": 0,
          "option": {
            "code": "colour",
            "id": 50,
            "type": "Radio"
          },
          "optionValue": {
            "code": "Black",
            "defaultValue": true,
            "id": 1,
            "image": "",
            "name": "Black",
            "sortOrder": 0
          },
          "productAttributePrice": 0,
          "productAttributeWeight":null,
          "productId": 10,
          "sortOrder": 0
        }
      ],
    "categories": [
      {
        "code": "GroceryCat",
        "id": 1
      } 
    ],
    "descriptions": [
      {
        "name": "test product",
        "language": "en"
      }
    ],
    "id": 109,
    "price": 100, 
    "quantity": 20, 
    "quantityOrderMaximum": 5, 
    "quantityOrderMinimum": 1, 
    "sku": "sku123"
  }

However, this was the error I got:

{
  "errorCode": null,
  "message": "com.salesmanager.core.business.exception.ConversionException: com.salesmanager.shop.store.api.exception.ConversionRuntimeException"
}

[JustFlavi]

Hi,
Just a quick idea:
Which version of Shopizer are you running?
If you started the application like described in projects README file, then chances are high, that you are running a recent version (2.17.0).
Unfortunately, the swagger documentation you are referencing belongs to the old version 2.9.0.
So maybe the versions are not compatible (anymore)

[Sai-Deekshith974]

To create a product, follow the below steps,
Step 1: Open http://localhost:8080/swagger-ui.html in the browser.
Step 2: Go to the user authentication API, provide the username and password to login.

Step 3: Copy the token and authorize it.

step 4: Go to the http://localhost:8080/api/v1/private/product - POST Method and for request body, can use the below format.
{
"id": 1,
"productShipeable": true,
"available": true,
"visible": true,
"sortOrder": 100,
"dateAvailable": "2023-01-31",
"creationDate": "2023-01-31",
"price": 199,
"quantity": 1000,
"sku": "table",
"preOrder": false,
"productVirtual": true,
"quantityOrderMaximum": 1,
"quantityOrderMinimum": 1,
"productIsFree": false,
"productSpecifications": {
},
"rating": 0,
"ratingCount": 0,
"refSku": "table1",
"rentalDuration": 0,
"rentalPeriod": 0,
"description": {
"id": 1,
"language": "en",
"name": "Olive Table",
"description": "Olive Table",
"friendlyUrl": "olive-table",
"keyWords": "",
"highlights": "",
"metaDescription": "",
"title": "Olive Table"
},
"productPrice": null,
"finalPrice": "$199.00",
"originalPrice": "$199.00",
"discounted": false,
"image": null,
"images": [],
"manufacturer": null,
"attributes": [],
"options": [],
"variants": [],
"properties": [],
"canBePurchased": true
}

Now, you can get the response status as 201 created.