diff --git a/aspnetcore/migration/inc/middleware.md b/aspnetcore/migration/inc/middleware.md
new file mode 100644
index 000000000000..c976a766e82d
--- /dev/null
+++ b/aspnetcore/migration/inc/middleware.md
@@ -0,0 +1,45 @@
+```mermaid
+sequenceDiagram
+  participant Client
+  participant Server
+  Client ->> Server: HTTP request
+  Server ->> ExceptionHandler: Handle exception
+  ExceptionHandler ->> Server: Send response
+  Server ->> Client: HTTP response
+  Client ->> Server: HTTP request
+  Server ->> Hsts: Add HSTS header
+  Hsts ->> Server: Send response
+  Server ->> Client: HTTP response
+  Client ->> Server: HTTP request
+  Server ->> HttpsRedirection: Redirect to HTTPS
+  HttpsRedirection ->> Server: Send response
+  Server ->> Client: HTTP response
+  Client ->> Server: HTTP request
+  Server ->> StaticFiles: Serve static file
+  StaticFiles ->> Server: Send response
+  Server ->> Client: HTTP response
+  Client ->> Server: HTTP request
+  Server ->> Routing: Route request
+  Routing ->> Server: Send response
+  Server ->> Client: HTTP response
+  Client ->> Server: HTTP request
+  Server ->> Cors: Allow CORS request
+  Cors ->> Server: Send response
+  Server ->> Client: HTTP response
+  Client ->> Server: HTTP request
+  Server ->> Authentication: Authenticate user
+  Authentication ->> Server: Send response
+  Server ->> Client: HTTP response
+  Client ->> Server: HTTP request
+  Server ->> Authorization: Authorize user
+  Authorization ->> Server: Send response
+  Server ->> Client: HTTP response
+  Client ->> Server: HTTP request
+  Server ->> CustomMiddleware1: Perform custom task
+  CustomMiddleware1 ->> Server: Send response
+  Server ->> Client: HTTP response
+  Client ->> Server: HTTP request
+  Server ->> Endpoints: Map request to controller action
+  Endpoints ->> Server: Send response
+  Server ->> Client: HTTP response
+  ```