feat(IpfsServer): show node ID on home page

IpfsServer/Pages/Index.cshtml

@@ -5,7 +5,8 @@
 }
 <div class="jumbotron">
     <h1>IPFS</h1>
-    <p class="lead">Join the <a href="https://ipfs.io/">InterPlanetary File System</a> - the permanent distributed web.</p>
+    <p class="lead">Welcome to the <a href="https://ipfs.io/">InterPlanetary File System</a> - the permanent distributed web.</p>
+    <p>You are talking to node <span class="hex">@Model.NodeId</span>.</p>
 </div>
 <div class="row">
     <div class="col-md-4">

IpfsServer/Pages/Index.cshtml.cs

@@ -2,6 +2,7 @@
 using System.Collections.Generic;
 using System.Linq;
 using System.Threading.Tasks;
+using Ipfs.CoreApi;
 using Microsoft.AspNetCore.Mvc;
 using Microsoft.AspNetCore.Mvc.RazorPages;
 
@@ -12,12 +13,25 @@ namespace Ipfs.Server.Pages
     /// </summary>
     public class IndexModel : PageModel
     {
+        ICoreApi ipfs;
+
         /// <summary>
-        ///   Build the model.
+        ///   Creates a new instance of the controller.
         /// </summary>
-        public void OnGet()
+        public IndexModel(ICoreApi ipfs)
         {
+            this.ipfs = ipfs;
+        }
+
+        public string NodeId = "foo-bar";
 
+        /// <summary>
+        ///   Build the model.
+        /// </summary>
+        public async Task OnGetAsync()
+        {
+            var peer = await ipfs.Generic.IdAsync();
+            NodeId = peer.Id.ToString();
         }
     }
 }

IpfsServer/wwwroot/css/site.css

@@ -33,3 +33,7 @@ body {
         display: none;
     }
 }
+
+.hex {
+    font-size: 80%;
+}