In this article, we will learn about getting Amazon FBA Fee using the Amazon MWS API in C#. As every seller required to know their FBA fee in order to improve himself/herself regarding selling products on Amazon. Amazon provides us the GetMyFeeEstimate API call in products API.
So let’s get started.
Firstly, install the NuGet package for products API.
Install-Package MWSProductsCSharpClientLibrary -Version 2017.3.22
Starting from _Layout.cshtml file.
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8" />
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>@ViewBag.Title - My ASP.NET Application</title>
@Styles.Render("~/Content/css")
@Scripts.Render("~/bundles/modernizr")
@Scripts.Render("~/bundles/jquery")
@Scripts.Render("~/bundles/bootstrap")
<style>
#loading {
position: fixed;
top: -50%;
left: -50%;
width: 200%;
height: 200%;
background: rgba(241, 241, 241, 0.48);
z-index: 2000;
overflow: hidden;
}
#loading img {
position: absolute;
top: 0;
left: 0;
right: 0;
bottom: 0;
margin: auto;
}
</style>
</head>
<body>
<div id="loading">
<img src="~/Content/spinner.gif" />
</div>
<div class="navbar navbar-inverse navbar-fixed-top">
<div class="container">
<div class="navbar-header">
<button type="button" class="navbar-toggle" data-toggle="collapse" data-target=".navbar-collapse">
<span class="icon-bar"></span>
<span class="icon-bar"></span>
<span class="icon-bar"></span>
</button>
@Html.ActionLink("Amazon FBA Fees", "Index", "Home", new { area = "" }, new { @class = "navbar-brand" })
</div>
<div class="navbar-collapse collapse">
<ul class="nav navbar-nav">
<li>@Html.ActionLink("Home", "Index", "Home")</li>
</ul>
</div>
</div>
</div>
<div class="container body-content">
@RenderBody()
<hr />
<footer>
<p>© @DateTime.Now.Year - My ASP.NET Application</p>
</footer>
</div>
@RenderSection("scripts", required: false)
</body>
</html>
<script>
function showLoader() {
$('#loading').show();
}
function hideLoader() {
$('#loading').fadeOut();
}
function getUrl() {
var getUrl = window.location;
var baseUrl = getUrl.protocol + "//" + getUrl.host + "/" + getUrl.pathname.split('/')[0];
return baseUrl;
}
$(document).ready(function () {
hideLoader();
});
</script> Navigate to View -> Home -> Index.cshtml
@{
ViewBag.Title = "Home Page";
}
<div class="row" style="margin-top:5%">
<div class="form-group col-md-4">
<label>Enter ASIN</label>
<input type="text" class="form-control" id="asin" />
</div>
</div>
<div class="row">
<div class="form-group col-md-4">
<input type="button" class="btn btn-success" id="calculate" value="Calculate Fees" />
</div>
</div>
<hr />
<script>
$(document).on("click", "#calculate", function () {
if ($('#asin').val() == "") {
alert("ASIN is required");
$('#asin').focus();
return;
}
else {
showLoader();
$.ajax({
url: getUrl() + '/Home/GetFeeEstimateData',
type: 'POST',
data: { 'ASIN': $('#asin').val() },
success: function (res) {
hideLoader();
if (res.result)
alert("FBA Fee is " + res.fee + " " + res.currency);
else
alert("Something went wrong. Please contact administrator");
},
error: function (err) {
hideLoader();
alert(err);
}
});
}
});
</script> We have to add the Credentials in Web.Config file present in the root directory.
<add key="ServiceURL" value="https://mws.amazonservices.com" /> <add key="SellerId" value="seller-id" /> <add key="MarketplaceID" value="marketplace-id" /> <add key="AccessKeyID" value="access-key" /> <add key="SecretKey" value="secret-key" />
Finally, the code which makes us possible to call through the API
using MarketplaceWebServiceProducts;
using MarketplaceWebServiceProducts.Model;
using System;
using System.Configuration;
using System.IO;
using System.Web.Mvc;
using System.Xml;
namespace GetMyFeeEstimateForAmazonMWS.Controllers
{
public class HomeController : Controller
{
public MarketplaceWebServiceProductsConfig _productConfig;
public MarketplaceWebServiceProducts.MarketplaceWebServiceProducts _productClient;
public static string sellerId = "";
public static string marketplaceID = "";
public static string accessKeyID = "";
public static string secretKey = "";
public static string serviceURL = "";
public HomeController()
{
sellerId = ConfigurationManager.AppSettings["SellerId"];
marketplaceID = ConfigurationManager.AppSettings["MarketplaceID"];
accessKeyID = ConfigurationManager.AppSettings["AccessKeyID"];
secretKey = ConfigurationManager.AppSettings["SecretKey"];
serviceURL = ConfigurationManager.AppSettings["ServiceURL"];
_productConfig = new MarketplaceWebServiceProductsConfig { ServiceURL = serviceURL };
_productClient = new MarketplaceWebServiceProductsClient("MWS", "1.0", accessKeyID, secretKey, _productConfig);
}
public ActionResult Index()
{
return View();
}
public JsonResult GetFeeEstimateData(string ASIN)
{
try
{
StreamWriter BaseTag;
var uploadRootFolder = AppDomain.CurrentDomain.BaseDirectory + "\\Reports";
Directory.CreateDirectory(uploadRootFolder);
var directoryFullPath = uploadRootFolder;
string targetFile = Path.Combine(directoryFullPath, "FeeEstimateResponse_" + Guid.NewGuid() + ".xml");
var response = InvokeGetMyFeesEstimate(ASIN);
BaseTag = System.IO.File.CreateText(targetFile);
BaseTag.Write(response.ToXML());
BaseTag.Close();
XmlDocument root = new XmlDocument();
root.Load(targetFile);
XmlNodeList elemList1 = root.GetElementsByTagName("FeeAmount");
var data = elemList1[3].InnerText;
var currency = data.Substring(0, 3);
var fee = data.Substring(3);
return Json(new { result = true, currency = currency, fee = fee }, JsonRequestBehavior.AllowGet);
}
catch (Exception ex)
{
return Json(new { result = false }, JsonRequestBehavior.AllowGet);
}
}
public GetMyFeesEstimateResponse InvokeGetMyFeesEstimate(string ASIN)
{
try
{
GetMyFeesEstimateRequest request = new GetMyFeesEstimateRequest();
request.SellerId = sellerId;
request.MWSAuthToken = "example";
FeesEstimateRequestList feesEstimateRequestList = new FeesEstimateRequestList();
feesEstimateRequestList.FeesEstimateRequest.Add(new FeesEstimateRequest
{
MarketplaceId = marketplaceID,
IdType = "ASIN",
IdValue = ASIN,
PriceToEstimateFees = new PriceToEstimateFees { ListingPrice = new MoneyType { Amount = 0M, CurrencyCode = "USD" } },
Identifier = "request_" + Guid.NewGuid().ToString(),
IsAmazonFulfilled = true
});
request.FeesEstimateRequestList = feesEstimateRequestList;
return _productClient.GetMyFeesEstimate(request);
}
catch (Exception ex)
{
return null;
}
}
}
} Output:
You can download the source code from here
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