From d7e979678261087b2bf0d3a181db151bfbc14934 Mon Sep 17 00:00:00 2001
From: Donald Gray <donald.gray@digirati.com>
Date: Mon, 31 Jul 2023 11:42:10 +0100
Subject: [PATCH] Add missing AuthAccessTokenError2.MessageId field

As per https://iiif.io/api/auth/2.0/#access-token-error-format
---
 src/IIIF/IIIF.Tests/Auth/V2/TokenServiceTests.cs | 8 ++++++--
 src/IIIF/IIIF/Auth/V2/AuthAccessTokenError2.cs   | 6 ++++++
 2 files changed, 12 insertions(+), 2 deletions(-)

diff --git a/src/IIIF/IIIF.Tests/Auth/V2/TokenServiceTests.cs b/src/IIIF/IIIF.Tests/Auth/V2/TokenServiceTests.cs
index fcc75db..eceff6d 100644
--- a/src/IIIF/IIIF.Tests/Auth/V2/TokenServiceTests.cs
+++ b/src/IIIF/IIIF.Tests/Auth/V2/TokenServiceTests.cs
@@ -56,7 +56,10 @@ public void Token_Service_Error_Response()
         // Arrange
         var tokenResp = new AuthAccessTokenError2(
             AuthAccessTokenError2.InvalidAspect,
-            new LanguageMap("en", "Your credentials are wrong"));
+            new LanguageMap("en", "Your credentials are wrong"))
+        {
+            MessageId = "1010"
+        };
 
         // Act
         var json = tokenResp.AsJson().Replace("\r\n", "\n");
@@ -64,7 +67,8 @@ public void Token_Service_Error_Response()
   ""@context"": ""http://iiif.io/api/auth/2/context.json"",
   ""type"": ""AuthAccessTokenError2"",
   ""profile"": ""invalidAspect"",
-  ""note"": {""en"":[""Your credentials are wrong""]}
+  ""note"": {""en"":[""Your credentials are wrong""]},
+  ""messageId"": ""1010""
 }";
         // Assert
         json.Should().BeEquivalentTo(expected);
diff --git a/src/IIIF/IIIF/Auth/V2/AuthAccessTokenError2.cs b/src/IIIF/IIIF/Auth/V2/AuthAccessTokenError2.cs
index 92dacf4..cfe23d4 100644
--- a/src/IIIF/IIIF/Auth/V2/AuthAccessTokenError2.cs
+++ b/src/IIIF/IIIF/Auth/V2/AuthAccessTokenError2.cs
@@ -43,6 +43,12 @@ public class AuthAccessTokenError2 : ResourceBase, IService
 
     [JsonProperty(Order = 102, PropertyName = "note")]
     public LanguageMap? Note { get; set; }
+    
+    /// <summary>
+    /// The message identifier supplied by the client.
+    /// </summary>
+    [JsonProperty(Order = 103, PropertyName = "messageId")]
+    public string MessageId { get; set; }
 
     public AuthAccessTokenError2(string profile, LanguageMap? note = null)
     {