JSON Deserializer returning NULL Values

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I am trying to consume a REST API via a C# Console Application and I've got as far as getting the webservice to return the JSON file, with the format:

{"status":200,"result":{"postcode":"SW1W0DT","quality":1,"eastings":528813,"northings":178953,"country":"England","nhs_ha":"London","longitude":-0.145828,"latitude":51.494853,"european_electoral_region":"London","primary_care_trust":"Westminster","region":"London","lsoa":"Westminster 023E","msoa":"Westminster 023","incode":"0DT","outcode":"SW1W","parliamentary_constituency":"Cities of London and Westminster","admin_district":"Westminster","parish":"Westminster, unparished area","admin_county":null,"admin_ward":"Warwick","ccg":"NHS Central London (Westminster)","nuts":"Westminster","codes":{"admin_district":"E09000033","admin_county":"E99999999","admin_ward":"E05000647","parish":"E43000236","parliamentary_constituency":"E14000639","ccg":"E38000031","nuts":"UKI32"}}}

I have created a class AddressInfo which is as follows:

public class AddressInfo {
    public string postcode { get; set; }
    public int quality { get; set; }
    public int eastings { get; set; }
    public int northings { get; set; }
    public string country { get; set; }
    public string nhs_ha { get; set; }
    public string admin_county { get; set; }
    public string admin_district { get; set; }
    public string admin_ward { get; set; }
    public double longitude { get; set; }
    public double latitude { get; set; }
    public string parliamentary_constituency { get; set; }
    public string european_electoral_region { get; set; }
    public string primary_care_trust { get; set; }
    public string region { get; set; }
    public string parish { get; set; }
    public string lsoa { get; set; }
    public string msoa { get; set; }
    public string ccg { get; set; }
    public string nuts { get; set; }
    public object codes { get; set; } 

The code to call the API and get the values is:

string strJSON = string.Empty;

strJSON = rClient.makeRequest();

AddressInfo AI = new AddressInfo();
AI = Newtonsoft.Json.JsonConvert.DeserializeObject<AddressInfo>(strJSON);

However, when I debug, AI is returning the values as "NULL".


Notice that your JSON has a nested structure. The AddressInfo is contained within its result property, it isn't at the top level.

Your actual class structure to deserialize the entire JSON response should look something like this (I've called the class JsonResponse but you can name it whatever you want):

class JsonResponse{
    public int status { get; set; }
    public AddressInfo result { get; set; }

Then deserialize it like this:

JsonResponse res = JsonConvert.DeserializeObject<JsonResponse>(strJSON);
AddressInfo addressInfo = res.result;

JSON.deserialize return null values, Just remove ContactJs , You don't need to include class name. This should work. String jso = '{ "another_Id": "cjfv5g33k61ls7jdlf4353kjg",  What was happening is that, because the Owner property appeared in the JSON prior to the OwnerId property, when the OwnerId property was set, the setter code determined that the current value was not the same as the value being set (since the current value was null), so it set the Owner property to null.

You're missing the fact that you need an outer class that has the properties int status and AdressInfo result.

Jsonconvert.deserialize to class returns null, The "case" doesn't match. The JSON element names are lower case; the class properties are upper case (the fields are lower case and not  Json.NET deserializing object returns null. Ask Question Asked 6 years, 3 months ago. I would like to deserialize a string o JSON and output data on a string:

You don't need to create a separate class to deserialize the entire response, this can be done dynamically to achieve desired result:

var source = "(your JSON");
dynamic data = JObject.Parse(source);   
var d = JsonConvert.SerializeObject(data.result);
AddressInfo account = JsonConvert.DeserializeObject<AddressInfo>(d);

Bug deserialization of object returns null · Issue #1650 · JamesNK , rawValue) { if(rawValue == null) { return "No Connection"; } else if (division != Json can't tell how to deserialize the value to original object,  Null values in the JSON are ignored only if they are valid. Null values for non-nullable value types cause exceptions. Utf8JsonReader, Utf8JsonWriter, and JsonDocument. System.Text.Json.Utf8JsonReader is a high-performance, low allocation, forward-only reader for UTF-8 encoded JSON text, read from a ReadOnlySpan<byte> or ReadOnlySequence<byte>.

Your JSON is nested. The result is a nested object. That's why you are experiencing this issue.

System.Text.Json.JsonSerializer.Deserialize not working with class , Describe the bug The deserialization of class ProblemDetails always return NULL value for properties(Title, status, etc.) To Reproduce create a  Ignoring null fields is such a common Jackson configuration because it's often the case that we need to have better control over the JSON output. This article shows how to do that for classes. There are however more advanced use cases, such as ignoring null values when serializing a Map.

NullValueHandling setting, This sample serializes an object to JSON with NullValueHandling set to Ignore so that properties with a default value aren't included in the JSON result. Sample. myObj jsonStream = ser.Deserialize<myObj>(jsonStream); And all was working fine until the JSON that came back had a null value for one of the fields.

https://social.msdn.microsoft.com/Forums/en-US/475, Method that will either return null to indicate that type being deserializers has representing null values (values deserialized when JSON token is JsonToken. JSON.NET Deserializer is returning Null. I have certain variables that need to be stored in a JSON file and read during application startup so that certain values

JsonDeserializer (jackson-databind 2.9.0 API), Json.NET deserializing custom object returns null. Mar 22 2017 6:24 AM. how do i fix?? GetSSASAcademyBookedCoursesModel _contacts = new  For example, a JSON string could be a DateTime but the deserializer doesn't attempt to inspect. For a "True" or "False" in JSON that is fairly unambiguous to deserialize to a Boolean, but we don't since we don't want to special case String or Number, we don't want to make an exception for True or False.