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6/26/2026
API Gateway Patterns in .NET Core and Azure

API Gateway Patterns in .NET Core and Azure

Short summary

Explores two API gateway patterns for .NET Core microservices: Backend for Frontend (BFF) creates client-specific endpoints optimized for web vs mobile, while GraphQL provides flexible single-endpoint querying with strongly-typed schemas. Includes practical C# code using HotChocolate, data loader patterns to prevent N+1 queries, and detailed trade-offs between both approaches.

  • •BFF pattern optimizes responses per client type (rich data for web, lightweight for mobile)
  • •GraphQL enables clients to request exactly what they need in a single query
  • •Data loaders batch requests to prevent N+1 performance problems

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