Consume Web API Post method with multiple parameter in ASP.NET MVC

Consume Web API Post method with multiple parameter in ASP.NET MVC

In the previous article, we learned how to Create Web API post and  Get method and display records in the ASP.NET View. Here, we will see how to consume Post method of Web API with multiple parameter.

Web API doesn't allow you to pass multiple complex objects in the method signature of a Web API controller method -- you can post only a single value to a Web API action method. This value in turn can even be a complex object. It is possible to pass multiple values though on a POST or a PUT operation by mapping one parameter to the actual content and the remaining ones via query strings.

Example :

       [HttpGet]
        public ActionResult Product()
        {

            string responseMessage = "";

            DAL.AuthRequest at = new DAL.AuthRequest();

            at.AuthToken = "2hgh343bjb";
            at.Code = "8291343435443";
            at.UserAgent = "";

            DAL.ProductService hm = new DAL.ProductService();
            hm.AuthRequest = at;
            hm.ProductName = 1;

             System.Net.ServicePointManager.Expect100Continue = false;
            ServicePointManager.SecurityProtocol = (SecurityProtocolType)3072;
           ServicePointManager.SecurityProtocol = SecurityProtocolType.Tls12 | SecurityProtocolType.Tls11 | SecurityProtocolType.Tls;

 HttpWebRequest request = (HttpWebRequest)WebRequest.Create("https://www.example.com/product/query");
            request.Method = "POST";
            request.ContentType = "application/json";
            string jsonOrder = JsonConvert.SerializeObject(hm);
            var data = Encoding.UTF8.GetBytes(jsonOrder);
            request.ContentLength = data.Length;

            using (var stream = request.GetRequestStream())
            {
                stream.Write(data, 0, data.Length);
            }
   
            WebResponse response = request.GetResponse();
            Stream dataStream = response.GetResponseStream();
            if (((HttpWebResponse)response).StatusDescription == "OK")
            {
                using (var stream = response.GetResponseStream())
                {
                    StreamReader reader = new StreamReader(stream);
                    responseMessage = reader.ReadToEnd();

                }
            }

            return View(hm);
        }

DAL.cs :

using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;

namespace RestProductQuery.DataService
{
    public class DAL
    {
        public class AuthRequest
        {
            public string Code { get; set; }
            public string AuthToken { get; set; }
            public string UserAgent { get; set; }

        }

        public class ProductService
        {
            public AuthRequest AuthRequest { get; set; }
            public string ProductName { get; set; }
            public int ProductType { get; set; }

        }

    }
}

Here using this Product method we have passed multiple parameter to web api with url : "https://www.example.com/product/query"  and get list of  matched record from web api methode.


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