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Building Enterprise Apps with ASP.NET Core 2.1
- 1. Enterprise Software Development Join the Conversation #EnterpriseApps #AspNetCore @JasonGtAu
- 2. Enterprise Apps with ASP.NET Core 2.1 .NET User Group Tour – June 2017 Join the Conversation #EnterpriseApps #AspNetCore @JasonGtAu
- 3. SSW Solution Architect Jason Taylor @JasonGtAu @SSW_TV codingflow.net github.com/JasonGT Developer* Since 1992 1 MHz CPU 20 KB Memory Join the Conversation #EnterpriseApps #AspNetCore @JasonGtAu
- 4. Architecture & Design Persistence Layer Application Layer Infrastructure Layer Presentation Layer Domain Layer Agenda
- 5. Architecture & Design Join the Conversation #EnterpriseApps #AspNetCore @JasonGtAu
- 6. Independent of frameworks Testable Independent of UI Independent of database Independent of external agency Join the Conversation #EnterpriseApps #AspNetCore @JasonGtAu Application Domain Presentation Clean Architecture
- 7. Unit of Work and Repository Patterns Should we implement these patterns? It isn’t always the best choice, because: • DbContext insulates your code from database changes • DbContext acts as a unit of work • DbSet acts as a repository • EF Core has features for unit testing without repositories Join the Conversation #EnterpriseApps #AspNetCore @JasonGtAu
- 8. Independent of frameworks* Testable Independent of UI Independent of database Independent of external agency Join the Conversation #EnterpriseApps #AspNetCore @JasonGtAu Application Domain Presentation Clean Architecture
- 9. Key Points Domain contains enterprise-wide types and logic Application contains application-specific models and logic Infrastructure (including Persistence) contain all external concerns Presentation contains frontend apps Infrastructure and Presentation components can be replaced with minimal effort Join the Conversation #EnterpriseApps #AspNetCore @JasonGtAu
- 10. Domain Layer Join the Conversation #EnterpriseApps #AspNetCore @JasonGtAu
- 11. Overview Entities Value Objects Enumerations Logic Exceptions Join the Conversation #EnterpriseApps #AspNetCore @JasonGtAu Application Domain Presentation
- 12. Demo Reviewing the Domain layer Join the Conversation #EnterpriseApps #AspNetCore @JasonGtAu
- 13. Key Points Use data annotations sparingly Always define foreign keys Use value objects when appropriate Initialise all collections Create custom domain exceptions Join the Conversation #EnterpriseApps #AspNetCore @JasonGtAu
- 14. Application Layer Join the Conversation #EnterpriseApps #AspNetCore @JasonGtAu
- 15. Overview Interfaces Models Logic Validators Events Exceptions Join the Conversation #EnterpriseApps #AspNetCore @JasonGtAu Application Domain Presentation
- 16. Demo Reviewing the Application layer Join the Conversation #EnterpriseApps #AspNetCore @JasonGtAu
- 17. Key Points Use CQRS to simply your overall design Use MediatR to simplify management of requests / responses, commands, queries, notifications and events Know the difference between View Models (VMs) and Data Transfer Objects (DTOs) Use FluentValidation for complex validation scenarios Create custom application exceptions Join the Conversation #EnterpriseApps #AspNetCore @JasonGtAu
- 18. Persistence Layer Join the Conversation #EnterpriseApps #AspNetCore @JasonGtAu
- 19. Overview DbContext Configurations Migrations Seeding Abstractions Join the Conversation #EnterpriseApps #AspNetCore @JasonGtAu Application Domain Presentation
- 20. Demo Reviewing the Persistence layer Join the Conversation #EnterpriseApps #AspNetCore @JasonGtAu
- 21. Key Points Independent of the database Conventions over configuration Use Fluent API Configuration over Data Annotations Use an extension to automatically apply all entity type configurations Join the Conversation #EnterpriseApps #AspNetCore @JasonGtAu
- 22. Infrastructure Layer Join the Conversation #EnterpriseApps #AspNetCore @JasonGtAu
- 23. Overview Clients File Systems Email / SMS System Clock Anything External Join the Conversation #EnterpriseApps #AspNetCore @JasonGtAu Application Domain Presentation
- 24. Demo Reviewing the Infrastructure layer Join the Conversation #EnterpriseApps #AspNetCore @JasonGtAu
- 25. Key Points Contains classes for accessing external resources Implements interfaces within the Application layer Utilises DTOs defined within the Application layer No layers depend on Infrastructure layer, e.g. Presentation layer Join the Conversation #EnterpriseApps #AspNetCore @JasonGtAu
- 26. Presentation Layer Join the Conversation #EnterpriseApps #AspNetCore @JasonGtAu
- 27. Overview Web Forms MVC Razor Pages Web API Single Page Apps Join the Conversation #EnterpriseApps #AspNetCore @JasonGtAu Application Domain Presentation
- 28. Demo Reviewing the Presentation layer Join the Conversation #EnterpriseApps #AspNetCore @JasonGtAu
- 29. Key Points Controllers should not contain any application logic All application logic belongs in the application layer Utilising Open API bridges the gap between the frontend and backend Create and consume well defined view models Join the Conversation #EnterpriseApps #AspNetCore @JasonGtAu
- 30. Recommend Resources Join the Conversation #EnterpriseApps #AspNetCore @JasonGtAu
- 31. Northwind Traders A sample application built using ASP.NET Core and EF Core. bit.ly/northwind-traders Join the Conversation #EnterpriseApps #AspNetCore @JasonGtAu
- 32. Building Monoliths Clean Architecture Azure aka.ms/webappebook Join the Conversation #EnterpriseApps #AspNetCore @JasonGtAu
- 33. Building Microservices Microservices Containers DDD Azure aka.ms/microservicesebook Join the Conversation #EnterpriseApps #AspNetCore @JasonGtAu
- 34. Clean Architecture Robert C. Martin bit.ly/clean-architecture-book Join the Conversation #EnterpriseApps #AspNetCore @JasonGtAu
- 35. Questions? Join the Conversation #EnterpriseApps #AspNetCore @JasonGtAu
- 36. Thank you! info@ssw.com.au www.ssw.com.au Sydney | Melbourne | Brisbane
Notas del editor
- Now I have an i7 with 16GB of RAM and it’s too slow. Plus there’s no tape drive so that kind of sucks.
- Todo: Talk about the dependency inversion principle. Todo: Talk about the interfaces within the core. Todo: Show alternative stacks.
- Todo: Talk about the dependency inversion principle. Todo: Talk about the interfaces within the core. Todo: Show alternative stacks.
- Todo: Mention how I have tried to break the application up by feature – products, orders, customers, and so on. I might not have it quite right yet – time will tell – but it’s a good start. Segregating the application this way make’s it obvious what’s important, and give me a logical starting pointing should I need to break it up into microservices.
- Todo: Mention how I have tried to break the application up by feature – products, orders, customers, and so on. I might not have it quite right yet – time will tell – but it’s a good start. Segregating the application this way make’s it obvious what’s important, and give me a logical starting pointing should I need to break it up into microservices.
- Todo: Mention how I have tried to break the application up by feature – products, orders, customers, and so on. I might not have it quite right yet – time will tell – but it’s a good start. Segregating the application this way make’s it obvious what’s important, and give me a logical starting pointing should I need to break it up into microservices.
- Todo: Mention how I have tried to break the application up by feature – products, orders, customers, and so on. I might not have it quite right yet – time will tell – but it’s a good start. Segregating the application this way make’s it obvious what’s important, and give me a logical starting pointing should I need to break it up into microservices.
- Todo: Mention how I have tried to break the application up by feature – products, orders, customers, and so on. I might not have it quite right yet – time will tell – but it’s a good start. Segregating the application this way make’s it obvious what’s important, and give me a logical starting pointing should I need to break it up into microservices.