In this module, you will learn to protect ASP.NET Core applications from common security threats and implement industry-standard security practices that safeguard user data and system integrity. You'll explore the most prevalent web vulnerabilities including SQL injection, cross-site scripting (XSS), and cross-site request forgery (CSRF), understanding how these attacks work and how to prevent them using ASP.NET Core's built-in security features. Through hands-on practice, you'll configure HTTPS and secure communication channels, implement SSL/TLS certificates, and apply security headers that protect data in transit. You'll work with deliberately vulnerable applications to identify and remediate security flaws, gaining practical experience in security testing and vulnerability assessment. You'll also implement security best practices in middleware components and integrate comprehensive API documentation using OpenAPI/Swagger with proper security configurations. By the end of this module, you'll be able to conduct security assessments, implement defense-in-depth strategies, and build applications that meet enterprise security standards while maintaining functionality and performance.

In this module, you will learn to build reliable, maintainable ASP.NET Core applications through comprehensive testing strategies that ensure code quality and prevent regressions. You'll explore the fundamentals of unit testing using xUnit framework, understanding how to structure test projects and write effective tests that follow the AAA (Arrange, Act, Assert) pattern. Through hands-on practice, you'll test controllers, services, and business logic components while learning to handle dependencies and error conditions appropriately. You'll implement integration tests using WebApplicationFactory to verify complete application workflows, including API endpoints, database operations, and middleware interactions. You'll also master test-driven development (TDD) principles, learning the Red-Green-Refactor cycle that leads to better code design and increased confidence in changes. You'll work with mocking frameworks to isolate components during testing and learn to balance test coverage with development efficiency. By the end of this module, you'll be able to implement comprehensive testing strategies that serve as both quality assurance and living documentation, enabling you to refactor and extend applications with confidence while maintaining high standards of code reliability.

In this module, you will learn to deploy ASP.NET Core applications to production environments using modern deployment strategies that ensure reliability, scalability, and maintainability. You'll master the essential preparation steps for production deployment, including environment-specific configuration, connection string management, performance optimization, and containerization with Docker. Through hands-on practice, you'll deploy applications to cloud platforms like Azure App Service, configure custom domains and SSL certificates, and set up monitoring and scaling capabilities. You'll implement continuous integration and deployment (CI/CD) pipelines using GitHub Actions or Azure DevOps that automatically build, test, and deploy your applications while maintaining quality gates and rollback capabilities. You'll also explore .NET Aspire for cloud-native applications, learning to configure service discovery, distributed tracing, and observability features for microservices architectures deployed to Azure Container Apps. By the end of this module, you'll be able to design and implement comprehensive deployment strategies that support modern development workflows, from local development through automated production deployments, ensuring your applications meet enterprise standards for reliability and operational excellence.

This project involves developing a secure e-commerce platform with proper authentication, authorization, and security measures. The project will be thoroughly tested and deployed to a cloud environment, demonstrating your ability to create, secure, test, and deploy ASP.NET Core applications.