REST API GET FIELDS IN ARRAY

Question

Hello guys i want to get Json array in fields,

I created 1 php file in a server and this php file to bring JSON data for the Product Informations, And after i wrote 1 apex code in Execute Anonymous and this code inside i want to get my fields but i couldnt reach,

As my following example

try 
{
        Http http = new Http();
        HttpRequest RequestProductList = new HttpRequest();
        RequestProductList.setEndPoint('388.221.34.12/ProductList.php');
        RequestProductList.setMethod('GET');
        RequestProductList.setTimeOut(120000);
        RequestProductList.setHeader('Content-Type','application/json');
        HttpResponse ResponseProductList = http.send(RequestProductList);

        if (ResponseProductList.getStatusCode() == 200)
        {

            Map<String,Object> results = (Map<String,Object>) JSON.deserializeUntyped(ResponseProductList.getBody());
            Map<String,Object> data = (Map<String,Object>) results.get('data');
            List<Object> Products = (List<Object>) data.get('productList');
            for(Object Prd: Products){
                system.debug(Products(Prd['AverageInventory'])); 
                ***ErrorMessage: Expression must be a list type: Object***
                   How can i get this AverageInventory field ? or others,

            }
        }
}
catch (exception ex){
    system.debug(ex);
}

Answer 1

Product again will be in the form of Map. So, you need to type-cast it to map and then get the field value:

for(Object Prd: Products){
       Map<String, Object> prdObject = (Map<String, Object>) Prd;
       System.debug('prdObject => '+prdObject);
       Integer AverageInventory = prdObject.containsKey('AverageInventory') : (Integer) prdObject.get('AverageInventory') : null; // OR Integer.valueOf(prdObject.get('AverageInventory'));
       System.debug('AverageInventory => '+AverageInventory);
       String MyStringField = prdObject.containsKey('MyStringField') : (String) prdObject.get('MyStringField') : null; // OR String.valueOf(prdObject.get('MyStringField'));
       System.debug('MyStringField => '+MyStringField);
   }