How can I send arguments into my controller ASP from JS?

Question

I am using ASP.NET

I want to send some data into my controller (which set this date in DataBase) from JS. I have tried using "fetch" but object is null.

MyController name: HomeController,

My Action: ResultPage,

Data which I want to send: testResult

P.S I use [FromBody] from System.Web.Http;

console.log(testResult); // have some data
fetch('/Home/ResultPage',
    {
        method: 'post',
        body: JSON.stringify(testResult)
    })

[System.Web.Mvc.HttpPost]
public void ResultPage([FromBody] TestResult testResult)
{
      // testResult is null
      //some code here
}

how are you setting the value of testResult in your javascript code? and what is the class definition for TestResult in your api? — jtate
– jtate, Commented Sep 29, 2019 at 23:18
Please show us TestResult class and the JSON you're sending, testResult, from the js console — haldo
– haldo, Commented Sep 29, 2019 at 23:35

Wai Ha Lee · Accepted Answer · 2019-09-30 08:58:55Z

2

var data = {
    name: 'John'          
};     
var response = fetch('Home/ResultPage', {
    method: 'POST',
    headers: {
        'Content-Type': 'application/json;charset=utf-8'
    },
    body: JSON.stringify(data)
});

[HttpPost]
public void ResultPage([FromBody]Parameter parameter)
{
    //code here
}

public class Parameter
{
   public string name { get; set; }
}

edited Sep 30, 2019 at 8:58

Wai Ha Lee

8,856102 gold badges61 silver badges100 bronze badges

answered Sep 30, 2019 at 8:54

Melba L

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Comments

Rimon Arif · Accepted Answer · 2019-09-30 10:13:53Z

0

If there is a required property in you model class, it must pass the required property through your JS code into the Action Method.

answered Sep 30, 2019 at 10:13

Rimon Arif

364 bronze badges

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