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Below is my JSON and I want it to parse and display the contents in a table in LWC like below. I used the JSONtoApex tool to create the parser class but I am not getting in which format I should return my data to LWC jS file so that I can iterate the list/array and display the data in the format shown in below image? I am able to add the individual inner JSON elements (identity,policy..) in to list but I want them to be in a single datatype to be able to iterate in js

 ResultDataJsonParse obj = ResultDataJsonParse.parse(responseBody);
 List<ResultDataJsonParse.detail> detailsList = new List<ResultDataJsonParse.detail>();
 List<ResultDataJsonParse.contract> contractsList = new List<ResultDataJsonParse.contract>();
 for(ResultDataJsonParse.content con:obj.content ){
            detailsList.add(con.vehicle);   
        }

enter image description here

{
  "content": [
    {
      "identity": {
        "caseId": "7546040",
        "caseType": "SMR"
      },
      "policy": {
        "createDate": "1669620011000",
        "modifyDate": "1670398216000",
        "statusCode": "NI"
      },
      "customer": {
        "customerId": "865208",
        "name": "KE PROTEZIONI SOLARI S.R.L."
      },
      "vehicle": {
        "registrationNumber": "FX446DX",
        "vehicleId": "AAFN3045"
      }
    },
    {
      "identity": {
        "caseId": "7546040",
        "caseType": "SMR"
      },
      "policy": {
        "createDate": "1669620011000",
        "modifyDate": "1670398216000",
        "statusCode": "NI"
      },
      "customer": {
        "customerId": "865208",
        "name": "KE PROTEZIONI SOLARI S.R.L."
      },
      "vehicle": {
        "registrationNumber": "FX446DX",
        "vehicleId": "AAFN3045"
      }
    }
  ],
  "first": "true",
  "numberOfElements": "22"
}
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1 Answer 1

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There is no need for a parser class in this case. It is possible to directly pass this string to LWC and convert it to object/array in JS.

But if you want to use Apex then return it as a string from apex using below method :

System.JSON.serialize(detailsList);

In your LWC , just deserialise it using :

const data = JSON.parse(resultString);

Useful links :

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  • If I just return the json string after desrializing as below, I am getting first level of json but not the second level. In apex : Map<String, Object> results = (Map<String, Object>)JSON.deserializeUntyped(responseBody); Here is what I am trying in js let contentDetails = result['content']; let identityDetails= contentDetails['identity']; result is returned map from apex The value for identityDetails is getting as undefined Commented Mar 3, 2023 at 8:39
  • @user59277 : result['content'] is an array as seen from your question. Try with : contentDetails[0]['identity'] Commented Mar 3, 2023 at 8:59
  • @ 42656 Thanks!!! I am getting the data now but as [object,object]. it seems we retrived only the contenDetails which is at index 0. I have 22 such rows. So should I create an array variable IdentityArray = []; and add all details in a loop iterating it 22 times? Commented Mar 3, 2023 at 9:19
  • No , your content details are present in result['content'] which is an array. result['content'] is your required array. Please accept & upvote if this answer helped you. Welcome. Commented Mar 3, 2023 at 9:29
  • 1
    Or try this in your LWC : const IdentityArray = result['content'].map(ele => ele['identity']); Commented Mar 3, 2023 at 9:34

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