Old to Gold: How to Modernize Your Legacy ASP.NET Apps Gradually

on YouTube ↗01h 00m

" summary

Shows an end-to-end incremental migration: upgrades a legacy MVC site by converting a class library to .NET Standard 2.0, scaffolding a side‑by‑side ASP.NET Core app on .NET 8, and wiring a YARP reverse proxy catch‑all to forward unresolved routes to the old app. Demonstrates adding Microsoft ASP.NET Core system.web adapters to preserve HTTPContext behavior, and uses the .NET Upgrade Assistant (v0.5) which automates many steps but leaves small manual fixes; YARP (v2.3) and adapters work in production.

AI-written summary · about

" chapters (15)

1. 0:00Legacy ASP.NET migration intro
2. 3:54Framework vs modern .NET
3. 9:37Strangler fig approach
4. 12:03Reverse proxies in migration
5. 15:13YARP as reverse proxy
6. 19:28Why YARP for migrations
7. 21:59YARP use cases beyond migration
8. 25:06.NET Upgrade Assistant intro
9. 29:00Live demo: legacy class library
10. 33:38Migrating ASP.NET with YARP
11. 42:37Web app migration steps
12. 48:41Next steps after migration
13. 56:24Handling system.web dependencies
14. 57:49Migration tooling state and plans
15. 58:10Q&A

" related talks

• 01h 04mMigrate Your Legacy ASP.NET Projects to ASP.NET Core Incrementally with YARPJonathan "J." Tower · NDC Sydney 2024
• 01h 03mTales from the .NET 8 Migration TrenchesJimmy Bogard · NDC London 2024
• 44mModernize your ASPNET based systems using the Strangler Fig patternRobert Folkesson · Øredev 2022
• 11mThe monster under the bed - working with legacy codeIoana Bota · NDC London 2020
• 01h 02mSolid ASP.NET CoreJimmy Bogard · NDC Sydney 2016
• 46mWhat's New in ASP.NET Core 8 and Blazor 8Christian Wenz · DevDays Europe 2024
• 50mClean Architecture with ASP.NET Core 2.2Jason Taylor · NDC London 2019
• 44mFrom Legacy to Vue.jsVanessa Böhner · iJS London 2019