How to add new product. Rest api in C#

[KrzysztofS]

Hello everybody.

I have problem with add new product with use REST API in C#.

I gice message: "{\"message\":\"%fieldName is a required field.\",\"parameters\":{\"fieldName\":\"product\"}}"

Please hel me.

My code:

 public string AddNewProduct()
        {
            var category = new Product();
            category.name = "abc111";
            category.sku = "sku";
            category.attribute_set_id = 1;
            category.price = 234;

            var token = GetBearerToken().Trim('"');
            var client = new RestClient { BaseUrl = new Uri(_host) };
            var request = new RestRequest(Method.POST);
            request.AddHeader("Content-Type", "application/json");
            request.AddHeader("Authorization", "Bearer " + token);
            request.Resource = "rest/V1/products";

            var p = new  prod();
            p.products = category;
           

            string json = JsonConvert.SerializeObject(p, Formatting.Indented);
            request.AddParameter("application/json", json, ParameterType.RequestBody);
            var response = client.Execute(request);
            if (response.StatusCode == System.Net.HttpStatusCode.OK)
            {
                return response.Content;
            }
            else
            {
                return "" + response.Content;
            }
        }

[Manthan Dave]

You forgot few parameters , which is required to create product using Rest Api in Magento 2.

Also all the parameters are coming under the product parameters , so below i have posted parameters structure for products.

Body:

{
"product": {
"sku": "sku",
"name": "abc1111",
"price": 234,
"status": 1,
"type_id": "simple",
"attribute_set_id":1
}
}

[KrzysztofS]

I added this fields. Still not work.

[Manthan Dave]

Update your full structure here , Have you taken this under the product ?

[KrzysztofS]

            var product = new Product();
            product.sku = "sku";
            product.name = "abc111";
            product.price = 234;
            product.status = 1;
            product.type_id = "simple";
            product.attribute_set_id = 4;

            

            

            var token = GetBearerToken().Trim('"');
            var client = new RestClient { BaseUrl = new Uri(_host) };
            var request = new RestRequest(Method.POST);
            request.AddHeader("Accept", "application/json");
            request.AddHeader("Authorization", "Bearer " + token);
            request.Resource = "rest/V1/products";
            
            var prod = new prod();
            prod.products = product;

            string json = JsonConvert.SerializeObject(prod, Formatting.Indented);

            //request.AddBody(json);
            request.AddParameter("application/json", json, ParameterType.RequestBody);
            var response = client.Execute(request);
            if (response.StatusCode == System.Net.HttpStatusCode.OK)
            {
                return response.Content;
            }
            else
            {
                return " " + response.Content;
            }

[KrzysztofS]

I am reading Documentation Rest api (swagger). I know field "fieldName" is on error message

[Manthan Dave]

Yes thats what i am saying , you are missing main parameter which is product.

Something like below code :

{
// Here you are missing first product parameter, all parameters comes under product  
"product": {
"sku": "sku",
"name": "abc1111",
"price": 234,
"status": 1,
"type_id": "simple",
"attribute_set_id":1
}
}

If you have seen like FieldName is required field they have also mention - {\"fieldName\":\"product\"}}"  so here you are missing main parameter called product , all sku , type_id and other paramters needs to pass under the product.

[KrzysztofS]

Tis is my result:

{
  "product": {
    "entity_id": 0,
    "type_id": "simple",
    "attribute_set_id": 4,
    "fieldName": "A",
    "required_options": 0,
    "sku": "sku",
    "name": "abc111",
    "meta_title": null,
    "meta_description": null,
    "url_key": null,
    "custom_design": null,
    "page_layout": null,
    "options_container": null,
    "country_of_manufacture": null,
    "msrp_enabled": null,
    "msrp_display_actual_price_type": null,
    "gift_message_available": null,
    "price": 234.0,
    "special_price": null,
    "weight": 0.0,
    "msrp": null,
    "status": 1,
    "visibility": 0,
    "enable_googlecheckout": null,
    "tax_class_id": null,
    "description": null,
    "short_description": null,
    "meta_keyword": null,
    "custom_layout_update": null,
    "special_from_date": null,
    "special_to_date": null,
    "news_from_date": null,
    "news_to_date": null,
    "custom_design_from": null,
    "custom_design_to": null,
    "group_price": null,
    "tier_price": null,
    "stock_data": null,
    "Attributes": null
  }
}

[KrzysztofS]

And new message with error:

"{\"message\":\"Internal Error. Details are available in Magento log file. Report ID: webapi-5a93c39b2ec65\"}"

[Manthan Dave]

okay , it means your previous issue is resolved by adding product and pass all the parameters under the product  right ?

Now you have some different error , open your error log file and post the error log you have.

Also check in your magento 2 backend , product is created or not ?