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Kursplan
Introduction to the Modern .NET Platform
- .NET 8 runtime, SDK, and unified platform overview
- Comparison of .NET Framework, .NET Core, and .NET 8+ evolution
- Project structure, target frameworks, and multi-targeting basics
- Setting up the development environment and tooling
Modern C# and Future-Oriented Language Practices
- Records, init-only setters, and immutability patterns
- Pattern matching enhancements and switch expressions
- Nullable reference types and compiler-driven safety
- Async/await best practices and memory-efficient streaming
- Generic math, static abstracts in interfaces, and performance-oriented APIs
- Preparing codebases for C# 12/13 features on .NET 8
ASP.NET Core Fundamentals and Application Bootstrap
- Host builder, middleware pipeline, and request lifecycle
- Minimal APIs vs controller-based APIs: decision criteria
- Configuration providers, environment-specific settings, and secrets management
- Static files, routing, and endpoint conventions
- Dependency injection container configuration and service lifetimes
REST API Design and Implementation
- REST maturity model, resource modeling, and URI design
- HTTP methods, status codes, and content negotiation
- Request validation, model binding, and FluentValidation integration
- Versioning strategies for public and internal APIs
- Documentation with OpenAPI and Swagger UI
- Integration testing APIs with TestServer and WebApplicationFactory
Enterprise Dependency Injection and Inversion of Control
- Constructor injection, service lifetimes, and captive dependencies
- Decorator and factory patterns with the built-in container
- Scrutor and third-party DI library integration
- Modular service registration and feature-based organization
- Cross-cutting concerns via middleware and filters
Logging, Configuration, and Centralized Error Handling
- Structured logging with Microsoft.Extensions.Logging and Serilog
- Log levels, scopes, enrichment, and sink configuration
- Exception middleware and global error handling pipelines
- ProblemDetails and RFC 7807-compliant error responses
- Health checks, telemetry, and observability hooks
- Correlation IDs and distributed tracing preparation
Software Architecture for Enterprise .NET Solutions
- Layered, hexagonal, and clean architecture principles
- Domain-driven design building blocks in .NET
- CQRS and mediator patterns with MediatR
- Repository and unit-of-work patterns with EF Core
- Vertical slice architecture for feature cohesion
- Evaluating monolith, modular monolith, and microservices trade-offs
Security for Web Applications and APIs
- Authentication schemes: JWT, OAuth2, OpenID Connect, and cookie-based flows
- Authorization policies, claims-based access, and resource-based guards
- HTTPS enforcement, HSTS, and secure header middleware
- Input sanitization, output encoding, and OWASP Top 10 mitigation
- Rate limiting, CORS policies, and anti-forgery token handling
- Secret management with Azure Key Vault and environment-driven rotation
Code Quality, Maintainability, and Best Practices
- Coding standards, EditorConfig, and dotnet format
- Static analysis with Roslyn analyzers and SonarQube integration
- Unit testing with xUnit, mocking with Moq or NSubstitute
- Integration and contract testing in CI pipelines
- Refactoring techniques for long-lived legacy modules
- Documentation, API contracts, and knowledge-sharing practices
Modernization Strategy: Assessing Legacy .NET Framework Code
- Portfolio analysis: classify apps by criticality, complexity, and business value
- .NET Upgrade Assistant and compatibility analyzer usage
- Identifying deprecated APIs, platform-specific dependencies, and third-party gaps
- Windows-specific APIs and WCF migration considerations
- Creating a migration roadmap with risk-based prioritization
Progressive Migration and Coexistence Techniques
- Strangler Fig pattern: incrementally replacing legacy subsystems
- API-first migration: exposing .NET Framework domains via REST facades
- Message-based bridging with RabbitMQ, Azure Service Bus, or Kafka
- Shared database coexistence and schema versioning strategies
- Running .NET Framework and .NET 8 side-by-side in the same infrastructure
- Containerizing modern components while leaving legacy on IIS
Hands-On Migration Lab and Review
- Applying the Upgrade Assistant to a representative legacy project
- Refactoring a Web Forms or WCF service into ASP.NET Core APIs
- Implementing DI, logging, and centralized error handling in the migrated solution
- Adding authentication and authorization to the new API surface
- Verifying coexistence through end-to-end integration testing
- Review, Q&A, and post-training modernization planning guidance
Krav
- Experience with C# programming and object-oriented design principles
- Familiarity with web development concepts (HTTP, HTML, CSS, JavaScript basics)
- Basic understanding of relational databases and SQL
- Prior exposure to .NET Framework or ASP.NET is helpful but not required
Audience
- .NET developers and architects preparing to modernize legacy .NET Framework applications
- Software engineers moving into enterprise .NET development roles
- Technical leads responsible for platform migration and coexistence planning
- DevOps and infrastructure staff supporting .NET application lifecycles
21 Timmar
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