how to download json object in file asp.net

Question

i have class

    class abc{
       [JsonPropertyName("firstName")]
       public string FirstName{get; set;}

       [JsonPropertyName("lastName")]
       public string LastName{get; set;} }

i am assigning some values in it one method.

     public void DownloadJson(){
     abc abcModel= new abc(){ FirstName="Tom", LastName="Torres"};

     var test = JsonConvert.SerializeObject(abcModel);
     }

i want to save(download) this test object in json file on my browserwithout directing in new window just simply download it in same method DownloadJson() and in current window.

Is this asp.net core? Are you using MVC? Please provide more details. Otherwise it is too much infer. — Umang
– Umang, Commented Aug 25, 2020 at 22:38

akash · Accepted Answer · 2020-08-26 18:21:07Z

2

it worked.

   fileName="xyz.json"

   byte[] bytes = System.Text.Encoding.UTF8.GetBytes(test);

   var content = new System.IO.MemoryStream(bytes);
   return File(content , "application/json", fileName);

edited Aug 26, 2020 at 18:21

answered Aug 26, 2020 at 13:33

akash

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Comments

M Leipper · Accepted Answer · 2020-08-25 22:26:19Z

1

public ContentResult DownloadJson(){
 var builder = new StringBuilder();
 abc abcModel= new abc(){ FirstName="Tom", LastName="Torres"};
 var test = JsonConvert.SerializeObject(abcModel);
 builder.Append($"{test}")
 var fileName = "someName.JSON";

        Response.Headers.Add("Content-Disposition", $"attachment; filename=\"{fileName}\"");

        return Content(data, "text/plain");

 }

have you tried returning a ContentResult?

answered Aug 25, 2020 at 22:26

M Leipper

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1 Comment

Umang Over a year ago

Why not return Json(abcModel)?

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