JsonConverter(typeof()) is not working to handle following json response.

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VS2012

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I am calling API and Response from the API call is as follows. It throws Exception when I used JsonConvert.DeserializeObject<class1>(resp) as because type of the parameters changes for different call. I have used JsonConverter(typeof()) to handle type conversion. But it is not working. How can i handle when type of the parameters of the json response changes?

C#

public class class1
{  
    public double lat { get; set; }
    public double @long { get; set; }
    public int orra { get; set; }
    public List<string> hotelPolicy { get; set; }
}

C#

public class class1
{   
    public object lat { get; set; }
    public object @long { get; set; }
    public double orra { get; set; }
    public List<object> hotelPolicy { get; set; }
}

Posted 8-Jun-15 20:10pm

Member 10874553

Updated 8-Jun-15 21:13pm

StM0n

v4

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Comments

Mathi Mani 9-Jun-15 20:26pm

Is it the same url returning different type of response or different urls? If you can improve the question by providing more details, you may get an answer.

Member 10874553 10-Jun-15 11:52am

Same url returns different type of response.

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Mr Ellipse · Answer 1 · 2015-06-10T21:56:00

I don't think there is a magic silver bullet for this issue.

I would suggest validating the incoming JSON data against one of several pre-defined schemas. If it validates against a particular schema, you can safely call JsonConvert.DeserializeObject<T>() against your DTO class.

JSON Schema Validation[^]

This approach as more performant (it avoids the overhead of raising runtime exceptions)

The other more straight-forward approach would just be to create a 'TryParse' style function, which swallows any exceptions, and call it multiple times, until a valid result is returned ...

C#

public bool TryParseJson<T>(string json, out T value) where T: class, new()
{
    value = new T();
    bool result = false;
    try{
        value = JsonConvert.DeserializeObject<T>(json);
        result = true;
    }catch(Exception)
    {
    }
    return result;
}

JsonConverter(typeof()) is not working to handle following json response.

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JsonConverter(typeof()) is not working to handle following json response.

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