string is null when posting from Angular to Web API?

Question

When I try to post a string to my web api, the value is null. I have tried wrapping it in quotes, but it is still null.

AngularJS code:

return $http.post("http://localhost:59437/api/Recaptcha/Post", 
                                    vcRecaptchaService.getResponse());

Web Api code:

[EnableCors("*", "*", "*")]
public class RecaptchaController : ApiController
{
    public string Post([FromBody] string response)
    {
        return response;
    }
}

I also am not sure how this even works because, i don't have a response in my form body. vcRecaptchaService.getResponse() just returns a response string and then I am going to send that to google's verify api to verify the recaptcha, so the [FromBody] part doesn't make sense to me if that is not part of the body

@PankajParkar - It returns a string response when you check the recaptcha checbox. — xaisoft
– xaisoft, Commented Jul 21, 2015 at 20:18

Pankaj Parkar · Accepted Answer · 2015-07-21 20:20:54Z

1

Your post call should be sending data in json format like {response: 'something'}

  return $http.post("http://localhost:59437/api/Recaptcha/Post", 
       { response: vcRecaptchaService.getResponse() } //data 
  );

answered Jul 21, 2015 at 20:20

Pankaj Parkar

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4 Comments

xaisoft Over a year ago

I tried this and I also tried doing { response: "'" + vcRecaptchaService.getResponse() + "'"}, but it is still null

Pankaj Parkar Over a year ago

@xaisoft no need of single quotes, are you getting any error in console?

xaisoft Over a year ago

Just checked, no console error. I tried hard-coding a string instead of using vcRecaptchaService.getResponse(), but that didn't work either.

xaisoft Over a year ago

When I look at chrome's developer tools, I see the Request Payload set to the string, but when it hits the Api Controller action, it is null.

xaisoft · Accepted Answer · 2015-07-21 21:14:23Z

0

Wrapping it in quotes worked, but I had to do it just like this:

return $http.post("http://localhost:59437/api/Recaptcha/Post",
           '"' + vcRecaptchaService.getResponse() + '"'
        );

answered Jul 21, 2015 at 21:14

xaisoft

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