api for requesting installation ids

src/Core/Models/Api/Request/InstallationRequestModel.cs

@@ -0,0 +1,22 @@
+using Bit.Core.Models.Table;
+using System.ComponentModel.DataAnnotations;
+
+namespace Bit.Core.Models.Api
+{
+    public class InstallationRequestModel
+    {
+        [Required]
+        [EmailAddress]
+        public string Email { get; set; }
+
+        public Installation ToInstallation()
+        {
+            return new Installation
+            {
+                Key = Utilities.CoreHelpers.SecureRandomString(20),
+                Email = Email,
+                Enabled = true
+            };
+        }
+    }
+}

src/Core/Models/Api/Response/InstallationResponseModel.cs

@@ -0,0 +1,18 @@
+using System;
+using Bit.Core.Models.Table;
+
+namespace Bit.Core.Models.Api
+{
+    public class InstallationResponseModel : ResponseModel
+    {
+        public InstallationResponseModel(Installation installation)
+            : base("installation")
+        {
+            Id = installation.Id.ToString();
+            Key = installation.Key;
+        }
+
+        public string Id { get; set; }
+        public string Key { get; set; }
+    }
+}