key needs to be specified as a request object with an "authorized_key" parameter. Also the management console API wants it as a URL parameter rather than as a json body payload

Fix UriExtension ApplyParameter() to be able to apply parameters to non absolute URLs

Octokit/Clients/Enterprise/EnterpriseManagementConsoleClient.cs

@@ -1,5 +1,6 @@
 using System;
 using System.Collections.Generic;
+using System.Net;
 using System.Threading.Tasks;
 
 namespace Octokit
@@ -45,6 +46,7 @@ namespace Octokit
 
             var endpoint = ApiUrls.EnterpriseManagementConsoleMaintenance(managementConsolePassword, ApiConnection.Connection.BaseAddress);
 
+            endpoint = CorrectEndpointForManagementConsole(endpoint);
             return ApiConnection.Get<MaintenanceModeResponse>(endpoint);
         }
 
@@ -65,36 +67,38 @@ namespace Octokit
             return ApiConnection.Post<MaintenanceModeResponse>(endpoint, maintenance.ToFormUrlEncodedParameterString());
         }
 
-        public Task<IReadOnlyList<AuthorizedManagementKey>> GetAllAuthorizedKeys(string managementConsolePassword)
+        public Task<IReadOnlyList<AuthorizedKey>> GetAllAuthorizedKeys(string managementConsolePassword)
         {
             Ensure.ArgumentNotNullOrEmptyString(managementConsolePassword, "managementConsolePassword");
 
             var endpoint = ApiUrls.EnterpriseManagementConsoleAuthorizedKeys(managementConsolePassword);
-            endpoint = CorrectEndpointForManagementConsole(endpoint);
 
-            return ApiConnection.Get<IReadOnlyList<AuthorizedManagementKey>>(endpoint);
+            endpoint = CorrectEndpointForManagementConsole(endpoint);
+            return ApiConnection.Get<IReadOnlyList<AuthorizedKey>>(endpoint);
         }
 
-        public Task<IReadOnlyList<AuthorizedManagementKey>> AddAuthorizedKey(string key, string managementConsolePassword)
+        public Task<IReadOnlyList<AuthorizedKey>> AddAuthorizedKey(AuthorizedKeyRequest authorizedKey, string managementConsolePassword)
         {
-            Ensure.ArgumentNotNullOrEmptyString(key, "publicKeyContent");
+            Ensure.ArgumentNotNull(authorizedKey, "authorizedKey");
             Ensure.ArgumentNotNullOrEmptyString(managementConsolePassword, "managementConsolePassword");
 
             var endpoint = ApiUrls.EnterpriseManagementConsoleAuthorizedKeys(managementConsolePassword);
-            endpoint = CorrectEndpointForManagementConsole(endpoint);
+            endpoint = endpoint.ApplyParameters(authorizedKey.ToParametersDictionary());
 
-            return ApiConnection.Post<IReadOnlyList<AuthorizedManagementKey>>(endpoint, key);
+            endpoint = CorrectEndpointForManagementConsole(endpoint);
+            return ApiConnection.Post<IReadOnlyList<AuthorizedKey>>(endpoint);
         }
 
-        public Task DeleteAuthorizedKey(string key, string managementConsolePassword)
+        public Task DeleteAuthorizedKey(AuthorizedKeyRequest authorizedKey, string managementConsolePassword)
         {
-            Ensure.ArgumentNotNullOrEmptyString(key, "publicKeyContent");
+            Ensure.ArgumentNotNull(authorizedKey, "authorizedKey");
             Ensure.ArgumentNotNullOrEmptyString(managementConsolePassword, "managementConsolePassword");
 
             var endpoint = ApiUrls.EnterpriseManagementConsoleAuthorizedKeys(managementConsolePassword);
-            endpoint = CorrectEndpointForManagementConsole(endpoint);
+            endpoint = endpoint.ApplyParameters(authorizedKey.ToParametersDictionary());
 
-            return ApiConnection.Delete(endpoint, key);
+            endpoint = CorrectEndpointForManagementConsole(endpoint);
+            return ApiConnection.Delete(endpoint);
         }
     }
 }

Octokit/Clients/Enterprise/IEnterpriseManagementConsoleClient.cs

@@ -29,10 +29,10 @@ namespace Octokit
         /// <returns>The <see cref="MaintenanceModeResponse"/>.</returns>
         Task<MaintenanceModeResponse> EditMaintenanceMode(UpdateMaintenanceRequest maintenance, string managementConsolePassword);
 
-        Task<IReadOnlyList<AuthorizedManagementKey>> GetAllAuthorizedKeys(string managementConsolePassword);
+        Task<IReadOnlyList<AuthorizedKey>> GetAllAuthorizedKeys(string managementConsolePassword);
 
-        Task<IReadOnlyList<AuthorizedManagementKey>> AddAuthorizedKey(string key, string managementConsolePassword);
+        Task<IReadOnlyList<AuthorizedKey>> AddAuthorizedKey(AuthorizedKeyRequest authorizedKey, string managementConsolePassword);
 
-        Task DeleteAuthorizedKey(string key, string managementConsolePassword);
+        Task DeleteAuthorizedKey(AuthorizedKeyRequest authorizedKey, string managementConsolePassword);
     }
 }

Octokit/Helpers/UriExtensions.cs

@@ -56,15 +56,21 @@ namespace Octokit
                     : uri.OriginalString.Substring(0, hasQueryString);
 
             string queryString;
+            string uriWithoutQuery;
             if (uri.IsAbsoluteUri)
             {
                 queryString = uri.Query;
+                uriWithoutQuery = uri.AbsoluteUri;
             }
             else
             {
                 queryString = hasQueryString == -1
                     ? ""
                     : uri.OriginalString.Substring(hasQueryString);
+
+                uriWithoutQuery = hasQueryString == -1
+                    ? uri.ToString()
+                    : uri.OriginalString.Substring(0, hasQueryString);
             }
 
             var values = queryString.Replace("?", "")

Octokit/Models/Request/Enterprise/AuthorizedKeyRequest.cs

@@ -0,0 +1,26 @@
+using System.Diagnostics;
+using System.Globalization;
+using Octokit.Internal;
+
+namespace Octokit
+{
+    [DebuggerDisplay("{DebuggerDisplay,nq}")]
+    public class AuthorizedKeyRequest : RequestParameters
+    {
+        public AuthorizedKeyRequest(string authorizedKey)
+        {
+            AuthorizedKey = authorizedKey;
+        }
+
+        [Parameter(Key = "authorized_key")]
+        public string AuthorizedKey { get; private set; }
+
+        internal string DebuggerDisplay
+        {
+            get
+            {
+                return string.Format(CultureInfo.InvariantCulture, "AuthorizedKey: {0}", AuthorizedKey);
+            }
+        }
+    }
+}

Octokit/Models/Response/Enterprise/AuthorizedKey.cs

@@ -2,12 +2,12 @@
 
 namespace Octokit
 {
-    public class AuthorizedManagementKey
+    public class AuthorizedKey
     {
-        public AuthorizedManagementKey()
+        public AuthorizedKey()
         { }
 
-        public AuthorizedManagementKey(string key, string prettyPrint, string comment)
+        public AuthorizedKey(string key, string prettyPrint, string comment)
         {
             Key = key;
             PrettyPrint = prettyPrint;