Create Custom Json Error in Asp.NET MVC

Question

I am using a JavaScript plug-in and if there is an error it expects format like;

{error: 'You are not allowed to upload such a file.'}

In my MVC Web API I am throwing error like;

 var error = string.Format("An error has been occured. Please try again later.");
                throw new HttpResponseException(Request.CreateErrorResponse(HttpStatusCode.InternalServerError, error));

and it is represented in HTTP response like below;

{"Message":"An error has been occured. Please try again later."}

how can I achieve to return in first way?

Frankely Diaz · Accepted Answer · 2015-04-07 18:09:42Z

2

You can create an anonymous object

throw new HttpResponseException(Request.CreateResponse(HttpStatusCode.InternalServerError,new { error = "your error message here!"}));

answered Apr 7, 2015 at 18:09

Frankely Diaz

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4 Comments

Teoman shipahi Over a year ago

This time it returns as {"error":"your error message here!"} with quotes. How can I eliminate that?

Frankely Diaz Over a year ago

Why do you need it without the quotes ?

Teoman shipahi Over a year ago

I think plug-in I am using is not accepting other than format {error: 'You are not allowed to upload such a file.'} Please see at plugins.krajee.com/file-input/demo#async-send

Frankely Diaz Over a year ago

You can parse the JSON String to an Javascript Object in order to use it like you need it. Example: JSON.parse("{\"error\":\"your error message here!\"}");

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