API Call With JSON Response in ASP.NET MVC

Question

I am a new to ASP.NET MVC. I want to call an API on a payment gateway. The API only tries to resolve Users Identity. I have written the CURL in C# but I seem to be stuck on how to proceed to get the API called and also return a JSON using AJAX.

Below is the Curl converted to C#.

[HttpPost]
public JsonResult ResolveBVN()
{
        //string str = BVN;

        var secretKey = "secretkey";

        using (var client = new HttpClient())
        {
            client.DefaultRequestHeaders.Add("Authorization", $"Bearer {secretKey}");
            var response = client.PostAsync("https://api.paystack.co/bvn/match", new StringContent("{ bvn: \"22146592120\",\n      account_number: \"0689688306\",\n      bank_code: \"044\",\n      first_name: \"uthman\",\n      last_name: \"jinadu\"\n  }")).Result;

            PaystackAPI paystackAPI = new PaystackAPI()
            {
                statuscode = response.IsSuccessStatusCode,
                message = response.StatusCode
            };

            return Json(paystackAPI);
        }
}

The AJAX call is below:

$("#btnGetBVN").click(function () {
    if ($('#BVN').val() == '' || $('#BVN').val() == undefined) {
        alert('Please Enter Customer BVN');
        return false;
    }

    $('.spinner').css('display', 'block');  //if clicked ok spinner shown

    $.ajax({
                    type: "POST",
                     url: "@Url.Action("ResolveBVN", "Transactions")",
                    contentType: "application/json; charset=utf-8",
                    dataType: "json",
                    success: function (response) {
                        alert(response.status);
                        $('#Firstname').val(response.data.first_name);
                        $('#Surname').val(response.data.last_name);
                      //  $('#Phone_Number').val(response.data.mobile);
                    
                        $('.spinner').css('display', 'none');
                    },
                    failure: function (response) {
                        
                        alert('BVN Does Not Exist Or Error Processing Request');
                        $('.spinner').css('display', 'none');
                    },
                    error: function (response) {
                       
                        alert('BVN Does Not Exist Or Error Processing Request');
                        $('.spinner').css('display', 'none');
                    }
    });
});

The alert message response is UNDEFINED

EDIT

I have added the Class to return the JSon to the AJAX call. I can only use the statuscode of the response.

How can I access the other part of the response? The response sample is below:

 {
  "status": true,
  "message": "BVN lookup successful",
  "data": {
   "bvn": "000000000000",
"is_blacklisted": false,
"account_number": true,
"first_name": true,
"last_name": true
  },
  "meta": {
"calls_this_month": 1,
"free_calls_left": 9
  }
}

How do I access the other parts in the class like account_Number, message and the likes.

Aditya Singh · Accepted Answer · 2020-08-12 15:43:05Z

0

Please use below :-

var secretKey = string.Empty;
            using (var client = new HttpClient())
            {

                client.DefaultRequestHeaders.Add("Authorization", $"Bearer {secretKey}");
                var response = httpClient.PostAsync("https://api.paystack.co/bvn/match", new StringContent("{ bvn: \"12345678912\",\n      account_number: \"0000000000\",\n      bank_code: \"087\",\n      first_name: \"bojack\",\n      last_name: \"horseman\"\n  }")).Result;
            }

Please make sure to set the correct secret key. you should be writing this code in the the method which is being called by the ajax.Response variable will contain the response returned by the paystack api

edited Aug 12, 2020 at 15:43

answered Aug 12, 2020 at 15:15

Aditya Singh

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12 Comments

uthumvc Over a year ago

curl api.paystack.co/bvn/match -H "Authorization: Bearer YOUR_SECRET_KEY" -H "Content-Type: application/json" -d '{ bvn: "12345678912", account_number: "0000000000", bank_code: "087", first_name: "bojack", last_name: "horseman" }' -X POST

uthumvc Over a year ago

Above is the Curl for the API

uthumvc Over a year ago

Please can you explain where to implement the above?

Aditya Singh Over a year ago

@uthumvc - i have updated my answer please take a look

uthumvc Over a year ago

Thank you boss. I will try it out and revert

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