How to Easily Extract a List of DTOs from Complex JSON in C# ASP.NET?

Extract DTO list from complex JSON response in C# ASP.NET

When calling APIs using RestSharp, you may encounter JSON responses with complex structures. In order to convert this JSON into a convenient and easy-to-maintain format, you want to create a list of DTO objects.

Visual Studio provides a simple yet powerful function to achieve this purpose. Go to the menu bar and select Edit > Paste Special > Paste JSON as Class .

After pasting your JSON into this dialog box, Visual Studio automatically generates a class hierarchy that reflects the JSON data structure. This hierarchy contains classes like Rootobject, Response, Result, Leads, Row, FL.

For example, the following C# class will be generated:

<code class="language-csharp">public class Rootobject
{
    public Response response { get; set; }
}

public class Response
{
    public Result result { get; set; }
    public string uri { get; set; }
}

public class Result
{
    public Leads Leads { get; set; }
}

public class Leads
{
    public Row[] row { get; set; }
}

public class Row
{
    public string no { get; set; }
    public FL[] FL { get; set; }
}

public class FL
{
    public string val { get; set; }
    public string content { get; set; }
}</code>

To extract the list of Leads, you can access the Leads.row property of the Rootobject instance. Each Row object in the list represents a potential customer.

By following these steps, you can easily deserialize complex JSON responses into a structured and manageable format without manual parsing.

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