Asp net core 6 how to take json input via mappost without deserializing

Introduction

ASP.NET is a popular programming language used for building web applications. In this article, we will explore how to take JSON input via MapPost without deserializing in ASP.NET Core 6.

Understanding MapPost

MapPost is a in ASP.NET Core that allows you to map incoming HTTP POST to a action method in your controller. By default, ASP.NET Core automatically deserializes the JSON payload into the corresponding model or object. However, there may be scenarios you want to the JSON input without deserializing it.

Using MapPost without Deserializing

To take JSON input via MapPost without deserializing, you can use the HttpRequest.Body property to access the raw JSON payload. Here's an example:


[HttpPost]
public IActionResult MyAction()
{
    using (StreamReader  = new StreamReader(Request.Body))
    {
        string json = reader.ReadToEnd();
        // Handle the JSON input without deserializing
        // ...
    }
    return Ok();
}

In the above example, we read the JSON payload from the Request.Body using a StreamReader. We can then handle the JSON input as a string without deserializing it.

Processing the JSON Input

Once you have the JSON input as a string, you can perform any required processing or manipulation. For example, you can use JSON.NET or System.Text.Json libraries to parse the JSON string and extract specific .


[HttpPost]
public IActionResult MyAction()
{
    using (StreamReader reader = new StreamReader(Request.Body))
    {
        string json = reader.ReadToEnd();
        JObject jsonObject = JObject.Parse(json);
        
        string name = jsonObject["name"].ToString();
        int age = (int)jsonObject["age"];
        
        // Process the extracted values
        // ...
    }
    return Ok();
}

In the above example, we use the JSON.NET library to parse the JSON string into a JObject. We can then access specific of the JSON object and perform further processing.

Conclusion

In this article, we explored how to take JSON input via MapPost without deserializing in ASP.NET Core 6. By the raw JSON payload using the HttpRequest.Body property, we can handle the JSON input as a string and perform any required processing without deserialization. This provides flexibility in handling JSON input in scenarios where deserialization is not necessary.

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