From b9c1644ec59fa36c918b7c8105b3653e309b9821 Mon Sep 17 00:00:00 2001
From: John Korsnes <johnkors@gmail.com>
Date: Wed, 7 Oct 2026 23:07:15 +0200
Subject: [PATCH] feat: expose response_url on block actions

---
 .../Interactive/BlockActions/BlockAction.cs   |  1 +
 .../BlockActionsPayloadTests.cs               | 81 +++++++++++++++++++
 2 files changed, 82 insertions(+)
 create mode 100644 source/test/Slackbot.Net.SlackClients.Http.Tests/BlockActionsPayloadTests.cs

diff --git a/source/src/Slackbot.Net.Endpoints/Models/Interactive/BlockActions/BlockAction.cs b/source/src/Slackbot.Net.Endpoints/Models/Interactive/BlockActions/BlockAction.cs
index 6c77d96..03f45ca 100644
--- a/source/src/Slackbot.Net.Endpoints/Models/Interactive/BlockActions/BlockAction.cs
+++ b/source/src/Slackbot.Net.Endpoints/Models/Interactive/BlockActions/BlockAction.cs
@@ -9,6 +9,7 @@ public class BlockActionInteraction : Interaction
     public User User { get; set; }
     public Channel Channel { get; set; }
     public Message Message { get; set; }
+    public string Response_Url { get; set; }
     public State State { get; set; }
     public IEnumerable<ActionsBlock> Actions { get; set; }
 }
diff --git a/source/test/Slackbot.Net.SlackClients.Http.Tests/BlockActionsPayloadTests.cs b/source/test/Slackbot.Net.SlackClients.Http.Tests/BlockActionsPayloadTests.cs
new file mode 100644
index 0000000..19762ba
--- /dev/null
+++ b/source/test/Slackbot.Net.SlackClients.Http.Tests/BlockActionsPayloadTests.cs
@@ -0,0 +1,81 @@
+using System.Net;
+using System.Text;
+using Microsoft.AspNetCore.Builder;
+using Microsoft.AspNetCore.Http;
+using Microsoft.Extensions.DependencyInjection;
+using Slackbot.Net.Endpoints.Abstractions;
+using Slackbot.Net.Endpoints.Hosting;
+using Slackbot.Net.Endpoints.Models.Interactive.BlockActions;
+
+namespace Slackbot.Net.Tests;
+
+public class BlockActionsPayloadTests
+{
+    private const string BlockActionsJson = """
+        {
+            "type": "block_actions",
+            "team": { "id": "T9TK3CUKW", "domain": "example" },
+            "user": { "id": "UA8RXUSPL", "username": "jtorrance", "team_id": "T9TK3CUKW" },
+            "api_app_id": "AABA1ABCD",
+            "token": "9s8d9as89d8as9d8as989",
+            "trigger_id": "12321423423.333649436676.d8c1bb837935619ccad0f624c448ffb3",
+            "channel": { "id": "CBR2V3XEX", "name": "review-updates" },
+            "message": { "bot_id": "BAH5CA16Z", "type": "message", "text": "This content can't be displayed.", "user": "UAJ2RU415", "ts": "1548261231.000200" },
+            "response_url": "https://hooks.slack.com/actions/AABA1ABCD/1232321423432/D09sSasdasdAS9091209",
+            "actions": [
+                {
+                    "action_id": "WaXA",
+                    "block_id": "=qXel",
+                    "text": { "type": "plain_text", "text": "View", "emoji": true },
+                    "value": "click_me_123",
+                    "type": "button",
+                    "action_ts": "1548426417.840180"
+                }
+            ]
+        }
+        """;
+
+    [Fact]
+    public async Task BlockActionHandlers_ReceiveTheResponseUrl()
+    {
+        var handler = await Post(BlockActionsJson);
+
+        var received = Assert.Single(handler.Received);
+        Assert.Equal("https://hooks.slack.com/actions/AABA1ABCD/1232321423432/D09sSasdasdAS9091209", received.Response_Url);
+        Assert.Equal("UA8RXUSPL", received.User.User_Id);
+        Assert.Equal("CBR2V3XEX", received.Channel.Id);
+    }
+
+    private static async Task<RecordingBlockActionsHandler> Post(string payloadJson)
+    {
+        var services = new ServiceCollection();
+        services.AddLogging();
+        services.AddSlackBotEvents().AddInteractiveBlockActionsHandler<RecordingBlockActionsHandler>();
+
+        await using var provider = services.BuildServiceProvider(new ServiceProviderOptions { ValidateScopes = true });
+        await using var scope = provider.CreateAsyncScope();
+
+        var pipeline = new ApplicationBuilder(provider).UseSlackbot(enableAuth: false).Build();
+
+        var ctx = new DefaultHttpContext { RequestServices = scope.ServiceProvider };
+        ctx.Request.Method = "POST";
+        ctx.Request.ContentType = "application/x-www-form-urlencoded";
+        ctx.Request.Body = new MemoryStream(Encoding.UTF8.GetBytes("payload=" + WebUtility.UrlEncode(payloadJson)));
+        ctx.Response.Body = new MemoryStream();
+
+        await pipeline(ctx);
+
+        return (RecordingBlockActionsHandler)scope.ServiceProvider.GetRequiredService<IHandleInteractiveBlockActions>();
+    }
+
+    private sealed class RecordingBlockActionsHandler : IHandleInteractiveBlockActions
+    {
+        public List<BlockActionInteraction> Received { get; } = [];
+
+        public Task<EventHandledResponse> Handle(BlockActionInteraction blockActionEvent)
+        {
+            Received.Add(blockActionEvent);
+            return Task.FromResult(new EventHandledResponse("OK"));
+        }
+    }
+}