Method PostUpdatePOHeader

using System.Net;
using Newtonsoft.Json.Linq;

public void MethodName(parms)
{
   string uri = "http://localhost/FusionServices/v2/Naviline/ProductInventory/UpdatePOHdr";
   System.Collections.Specialized.NameValueCollection postParms = 
     new System.Collections.Specialized.NameValueCollection(); 
   // Set paramater values
   postParms.Add("action",System.Web.HttpUtility.UrlEncode("U"));
   postParms.Add("poNumber",System.Web.HttpUtility.UrlEncode("021015"));
   postParms.Add("poType",System.Web.HttpUtility.UrlEncode("P"));
   postParms.Add("buyerCode",System.Web.HttpUtility.UrlEncode("CO"));
   postParms.Add("vendorNumber",System.Web.HttpUtility.UrlEncode("0002622"));
   postParms.Add("shipToCode",System.Web.HttpUtility.UrlEncode("RH"));
   postParms.Add("freightAmount",System.Web.HttpUtility.UrlEncode("000006789"));
   postParms.Add("deliverByDate",System.Web.HttpUtility.UrlEncode("022118"));
   postParms.Add("poDate",System.Web.HttpUtility.UrlEncode("011718"));
   postParms.Add("contractNumber",System.Web.HttpUtility.UrlEncode("CONT"));
   postParms.Add("invoiceToCode",System.Web.HttpUtility.UrlEncode("CO"));

   WebClient req = new WebClient();
   wc.Headers.Add("Content-Type", "application/x-www-form-urlencoded");
   wc.Headers.Set("X-APPID", "YOURID");
   wc.Headers.Set("X-APPKEY", "YOURKEY");

   byte[] responseBytes = wc.UploadValues(new Uri(uri), "POST", postParms);
   string stringResult = Encoding.UTF8.GetString(responseBytes); 
   JObject response = JObject.Parse(stringResult);
   string error = response["OutputParms"]["ErrorCode"].ToString();
   if (error == "0000")
   {
         // TODO - YOUR CODE HERE
   }
}

using System;
using System.Linq;
using System.Web;
using System.ComponentModel.DataAnnotations;
using System.Collections.Specialized;
using FusionServiceHelper.Models;

// NOTE: Use the namespace generated when you add the class, so that it is correct.
namespace FusionRazor.Models
{
   public class PostUpdatePOHeader
   {
       // Add property for each input param in order to map a field to it
       [Required(ErrorMessage = "Required")]
       [RegularExpression("^(?=.{0,1}$).*", ErrorMessage = "Must be 1 characters or less. ")]
       public string action{get; set;}

       [Required(ErrorMessage = "Required")]
       [RegularExpression("^(?=.{0,6}$).*", ErrorMessage = "Must be 6 characters or less. ")]
       public string poNumber{get; set;}

       [RegularExpression("^(?=.{0,6}$).*", ErrorMessage = "Must be 6 characters or less. ")]
       public string poDate{get; set;}

       [Required(ErrorMessage = "Required")]
       [RegularExpression("^(?=.{0,1}$).*", ErrorMessage = "Must be 1 characters or less. ")]
       public string poType{get; set;}

       [Required(ErrorMessage = "Required")]
       [RegularExpression("^(?=.{0,3}$).*", ErrorMessage = "Must be 3 characters or less. ")]
       public string buyerCode{get; set;}

       [Required(ErrorMessage = "Required")]
       [RegularExpression("^(?=.{0,7}$).*", ErrorMessage = "Must be 7 characters or less. ")]
       public string vendorNumber{get; set;}

       [Required(ErrorMessage = "Required")]
       [RegularExpression("^(?=.{0,2}$).*", ErrorMessage = "Must be 2 characters or less. ")]
       public string shipToCode{get; set;}

       [RegularExpression("^(?=.{0,9}$).*", ErrorMessage = "Must be 9 characters or less. ")]
       public string freightAmount{get; set;}

       [Required(ErrorMessage = "Required")]
       [RegularExpression("^(?=.{0,2}$).*", ErrorMessage = "Must be 2 characters or less. ")]
       public string invoiceToCode{get; set;}

       [RegularExpression("^(?=.{0,10}$).*", ErrorMessage = "Must be 10 characters or less. ")]
       public string contractCode{get; set;}

       [RegularExpression("^(?=.{0,6}$).*", ErrorMessage = "Must be 6 characters or less. ")]
       public string deliveryByDate{get; set;}

       public PostUpdatePOHeader()
       {
           //Set any defaults here
       }
   }
}

@* NOTE: Use Add->View to add the View. *@
@* NOTE: Check the 'Create strongly-typed view checkbox, and select the PostUpdatePOHeader class. *@
@* NOTE: Select Edit as the Scaffold template. *@
@* NOTE: Use the @model line that is generated at the top.  Replace the rest with the lines below.
@model FusionRazor.Models.PostUpdatePOHeader

@{
   ViewBag.Title = "PostUpdatePOHeader";
}

<h2>PostUpdatePOHeader</h2>
@using (Html.BeginForm()) {
   @Html.AntiForgeryToken()
   @Html.ValidationSummary(true)
   <fieldset>
   <legend>PostUpdatePOHeader</legend>
       <div class="editor-label">
           @Html.LabelFor(model => model.action)
       </div>
       <div class="editor-field">
           @Html.EditorFor(model => model.action)
           @Html.ValidationMessageFor(model => model.action)
       </div>
       <div class="editor-label">
           @Html.LabelFor(model => model.poNumber)
       </div>
       <div class="editor-field">
           @Html.EditorFor(model => model.poNumber)
           @Html.ValidationMessageFor(model => model.poNumber)
       </div>
       <div class="editor-label">
           @Html.LabelFor(model => model.poDate)
       </div>
       <div class="editor-field">
           @Html.EditorFor(model => model.poDate)
           @Html.ValidationMessageFor(model => model.poDate)
       </div>
       <div class="editor-label">
           @Html.LabelFor(model => model.poType)
       </div>
       <div class="editor-field">
           @Html.EditorFor(model => model.poType)
           @Html.ValidationMessageFor(model => model.poType)
       </div>
       <div class="editor-label">
           @Html.LabelFor(model => model.buyerCode)
       </div>
       <div class="editor-field">
           @Html.EditorFor(model => model.buyerCode)
           @Html.ValidationMessageFor(model => model.buyerCode)
       </div>
       <div class="editor-label">
           @Html.LabelFor(model => model.vendorNumber)
       </div>
       <div class="editor-field">
           @Html.EditorFor(model => model.vendorNumber)
           @Html.ValidationMessageFor(model => model.vendorNumber)
       </div>
       <div class="editor-label">
           @Html.LabelFor(model => model.shipToCode)
       </div>
       <div class="editor-field">
           @Html.EditorFor(model => model.shipToCode)
           @Html.ValidationMessageFor(model => model.shipToCode)
       </div>
       <div class="editor-label">
           @Html.LabelFor(model => model.freightAmount)
       </div>
       <div class="editor-field">
           @Html.EditorFor(model => model.freightAmount)
           @Html.ValidationMessageFor(model => model.freightAmount)
       </div>
       <div class="editor-label">
           @Html.LabelFor(model => model.invoiceToCode)
       </div>
       <div class="editor-field">
           @Html.EditorFor(model => model.invoiceToCode)
           @Html.ValidationMessageFor(model => model.invoiceToCode)
       </div>
       <div class="editor-label">
           @Html.LabelFor(model => model.contractCode)
       </div>
       <div class="editor-field">
           @Html.EditorFor(model => model.contractCode)
           @Html.ValidationMessageFor(model => model.contractCode)
       </div>
       <div class="editor-label">
           @Html.LabelFor(model => model.deliveryByDate)
       </div>
       <div class="editor-field">
           @Html.EditorFor(model => model.deliveryByDate)
           @Html.ValidationMessageFor(model => model.deliveryByDate)
       </div>
       <p>
       <input type="submit" value="Submit"/>
       </p>
   </fieldset>

}

@section Scripts {
   @Scripts.Render("~/bundles/jqueryval")
}

using System;
using System.Collections.Specialized;
using System.Linq;
using System.Web;
using System.Web.Mvc;
using FusionServiceHelper.Models;

// NOTE: Replace 'MyController' with the name of your controller.

// 
// GET: /MyController/PostUpdatePOHeader
public ActionResult PostUpdatePOHeader()
{
   // Create a new instance of the model to pick up any default values.
   PostUpdatePOHeader model =  new PostUpdatePOHeader();

   // pass model to set to default values
   // NOTE: Change 'MyFolderPath' to the path to the .cshtml file.
   return View("~/Views/MyFolderPath/PostUpdatePOHeader.cshtml", model);
}

// 
// POST: /MyController/PostUpdatePOHeader
[HttpPost]
public ActionResult PostUpdatePOHeader(FormCollection collection)
{
   string url = "v2/Naviline/ProductInventory/UpdatePOHdr";
   // Get the value from each input field
   NameValueCollection inputParms = new NameValueCollection();
   inputParms.Add("action", collection["action"]);
   inputParms.Add("poNumber", collection["poNumber"]);
   inputParms.Add("poDate", collection["poDate"]);
   inputParms.Add("poType", collection["poType"]);
   inputParms.Add("buyerCode", collection["buyerCode"]);
   inputParms.Add("vendorNumber", collection["vendorNumber"]);
   inputParms.Add("shipToCode", collection["shipToCode"]);
   inputParms.Add("freightAmount", collection["freightAmount"]);
   inputParms.Add("invoiceToCode", collection["invoiceToCode"]);
   inputParms.Add("contractCode", collection["contractCode"]);
   inputParms.Add("deliveryByDate", collection["deliveryByDate"]);

   try
   {
       // Send the request
       FusionServiceRequest request = new FusionServiceRequest();
       FusionServiceResult result = request.Post(url, inputParms);

       return View("Result", result);
   }
   catch(Exception e)
   {
       HandleErrorInfo info = new HandleErrorInfo(e, "MyController", "PostUpdatePOHeader");
       return View("Error", info);
   }
}