c# - Web API parameter is always null -

i have following method in web api:

[acceptverbs("post")] public bool movefile([frombody] fileusermodel model) {     if (model.domain == "abc")     {         return true;     }     return false; } 

the fileusermodel defined as:

public class fileusermodel {     public string domain { get; set; }     public string username { get; set; }     public string password { get; set; }     public string filename { get; set; } } 

i'm trying call through fiddler whenever model set null. in fiddler i've sent composer use post, url there , correct debugger in visual studio breaks when called. request i've setup as:

user-agent: fiddler  host: localhost:46992  content-length: 127  content-type: application/json 

the request body as:

"{   "domain": "dcas"   "username": "sample string 2",   "password": "sample string 3",   "filename": "sample string 4" }" 

but whenever run composer when debugger hits breakpoint shows model null.

the problem have posting json data surrounding double quotes. remove them , should work.

also fix missing comma:

{   "domain": "dcas",   "username": "sample string 2",   "password": "sample string 3",   "filename": "sample string 4" }