.NET 8 Microservices Development
Enterprise .NET 8 microservices — Minimal APIs, gRPC, MassTransit, Entity Framework Core, and production-grade .NET architecture for healthcare, fintech, and enterprise SaaS.
The Challenge
.NET Microservices Require Architecture Expertise, Not Just .NET Experience
.NET 8 is an excellent platform for microservices — Minimal APIs are fast and low-friction, gRPC performs at near-native speed for internal service communication, and the .NET ecosystem has mature libraries for every concern. But choosing the right patterns for each concern — MassTransit vs Azure Service Bus SDK directly, EF Core vs Dapper for each service's data access pattern, Minimal APIs vs Controllers, gRPC vs REST for inter-service communication — requires architecture expertise, not just .NET familiarity. The wrong choices create technical debt that compounds: an EF Core model shared across service boundaries couples data models to a monolithic schema, synchronous service-to-service REST calls without circuit breakers create cascading failures, and missing health check endpoints mean Kubernetes cannot route traffic correctly.
Deliverables
.NET Microservices Capabilities
- .NET 8 Minimal APIs — high-performance HTTP APIs with minimal boilerplate, endpoint filters, and native AOT compilation support
- gRPC services — high-performance binary inter-service communication with Protobuf contracts, streaming support, and deadline propagation
- MassTransit — message-based service communication with Azure Service Bus, RabbitMQ, or Amazon SQS transport, saga orchestration, and outbox pattern
- Entity Framework Core 8 — code-first database design, complex query optimisation, bulk operations, compiled queries, and database-per-service isolation
- YARP reverse proxy — .NET-native API gateway for routing, load balancing, and middleware with full .NET extensibility
- Aspire orchestration — .NET Aspire for local development orchestration, service discovery, telemetry, and cloud resource integration
- .NET health checks — readiness and liveness probes for Kubernetes, dependency checks, and custom health check implementations
- Polly resilience — circuit breakers, retry policies, bulkhead isolation, and timeout policies using Polly v8 with resilience pipelines
- Distributed caching — IDistributedCache with Redis, in-memory L1/L2 caching strategies, and cache invalidation patterns
- Observability — OpenTelemetry integration, structured logging with Serilog, and distributed tracing across .NET services
Stack
.NET Microservices Stack
Process
.NET Microservices Delivery Process
A clear, predictable engagement model with no surprises.
Service Decomposition & API Contract Design
Define service boundaries, ownership, and the API contracts between services. For gRPC services, define Protobuf contracts first. For message-based communication, design the message schemas and routing topology.
Service Template & Cross-Cutting Concerns
Establish a service template with standardised health checks, logging, telemetry, authentication middleware, and error handling. Every service starts from this template — consistency reduces operational complexity.
Core Services Build
Build core services in priority order. Integration test service interactions in a local Aspire environment. Each service has its own database and deploys independently.
Resilience & Performance Testing
Implement Polly resilience policies. Load test individual services and the full service graph. Identify and resolve EF Core N+1 queries, Redis cache misses, and Service Bus consumer lag.
Production Deployment & Monitoring
CI/CD pipelines with automated integration tests on every merge. Blue-green deployment to AKS or Container Apps. Application Insights distributed tracing for end-to-end request visibility.
FAQ
Frequently Asked Questions
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