I am writing two applications (Web API's) in .NET . From the app A I want to call a method in Controller of app B using Http Request. Here

 using (var askPensionerDetails = new HttpClient())
            {
                double pensionToDisburse = 0;
                askPensionerDetails.BaseAddress = new Uri("http://localhost:55345/api/pensionerdetails/");
                var responseTask = askPensionerDetails.GetAsync("getById?pan="   inputOfPensioner.PAN);
                responseTask.Wait();
                var result =responseTask.Result ;
                if (result.IsSuccessStatusCode)
                {
                     var readTask = result.Content.ReadFromJsonAsync<object>();
                     readTask.Wait();
                     return Ok(readTask.Result);
                }
            }

The output for this in postman is

{
    "name": "bunk seenu",
    "dateOfBirth": "1990-01-02T00:00:00",
    "pan": "ABCD12351E",
    "salaryEarned": 45000,
    "allowances": 500,
    "pensionType": 1,
    "bankDetails": {
        "bankName": "SBI",
        "accountNumber": "SBI00001BS",
        "bankType": 0
    }
}

That was a desired output. But the problem is how to access the properties like bankdetails,name,pan,salaryEarned.

I have tried using readTask.Result["name"] but it is throwing error.

I have also tried using result.Content.ReadAsStringASync(); But the output in postman is

{
    "name": [],
    "dateOfBirth": [],
    "pan": [],
    "salaryEarned": [],
    "allowances": [],
    "pensionType": [],
    "bankDetails": [
        [
            []
        ],
        [
            []
        ],
        [
            []
        ]
    ]
}

I don't have class associated with the result type of Json for statement readTask = result.Content.ReadFromJsonAsync(); (As per design constraints).

CodePudding user response：

From the docs:

If you have JSON that you want to deserialize, and you don't have the class to deserialize it into, you have options other than manually creating the class that you need:

• Deserialize into a JSON DOM (document object model) and extract what you need from the DOM.

  The DOM lets you navigate to a subsection of a JSON payload and deserialize a single value, a custom type, or an array. For information about the JsonNode DOM in .NET 6, see Deserialize subsections of a JSON payload. For information about the JsonDocument DOM, see How to search a JsonDocument and JsonElement for sub-elements.

• Use the Utf8JsonReader directly.

• Use Visual Studio 2019 to automatically generate the class you need:

  • Copy the JSON that you need to deserialize.
  • Create a class file and delete the template code.
  • Choose Edit > Paste Special > Paste JSON as Classes. The result is a class that you can use for your deserialization target.

CodePudding user response：

You can use Newtonsoft.Json

JObject jo = JObject.FromObject(readTask.Result);
var name = jo["name"];
if(string.IsNnullOrEmpty(name)){
///some code 
}