Designing gRPC Services
Learn to design gRPC services with Goa, including service definition, method annotations, protobuf generation, and proper gRPC status code mappings.
Basic gRPC Service
Build a complete gRPC service using Goa’s design-first approach, covering service design, implementation, protobuf handling, and deployment of a concert management system.
Learn how to build a production-ready gRPC service with Goa through this comprehensive tutorial series. We’ll create a concert management system that demonstrates key gRPC concepts while following Goa’s design-first approach.
Tutorial Sections
1. Designing the Service
Create your service definition using Goa’s DSL:
- Define service methods and RPCs
- Create protocol buffer messages
- Set up input validation
- Document your service behavior
2. Implementing the Service
Transform your design into working code:
- Generate service scaffolding
- Implement business logic
- Add error handling
- Set up the gRPC server
3. Running the Service
Deploy and test your service:
- Start the gRPC server
- Make RPC calls
- Verify method behavior
- Use gRPC reflection
4. Working with Protobuf
Handle protocol buffer messages:
- Message serialization
- Type mapping
- Custom field options
- Streaming data
Core Concepts Covered
What You'll Learn
gRPC Service Design
- Method definitions
- Message modeling
- Streaming patterns
- Error handling with status codes
Goa Development
- Design-first methodology
- Protocol buffer generation
- Service implementation
- Transport layer configuration
Production Practices
- Input validation
- Error handling
- Bi-directional streaming
- Service reflection
By completing this tutorial series, you’ll understand how to use Goa to create well-designed, performant gRPC services. Each section builds on the previous ones, taking you from initial design through to a fully functional gRPC service.
Ready to start? Begin with Designing the Service to create your first Goa gRPC service.