From 8e6963765c0ce9db894275b7e2fff41b9c4f9bc5 Mon Sep 17 00:00:00 2001
From: Massimiliano Donini <massimiliano.donini@gmail.com>
Date: Fri, 10 Jun 2016 21:13:57 +0200
Subject: [PATCH] Update README.md to document how to properly register the
 OpenIddict context when using a custom key type

---
 README.md | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/README.md b/README.md
index 15c765ff..0c73bead 100644
--- a/README.md
+++ b/README.md
@@ -130,6 +130,12 @@ public class ApplicationDbContext : IdentityDbContext<ApplicationUser> {
 }
 ```
 
+> **Note:** if you change the default entity primary key (e.g. to `int` or `Guid` instead of `string`), make sure to register your Entity Framework context using the overload accepting a `TKey` generic argument:
+
+```csharp
+services.AddOpenIddict<ApplicationUser, IdentityRole<int>, ApplicationDbContext, int>()
+```
+
 ## Enabling interactive flows support
 
 Out-the-box, **OpenIddict only enables non-interactive flows** (resource owner password credentials, client credentials, refresh token).