home / skills / jeremylongshore / claude-code-plugins-plus-skills / generating-grpc-services

This skill generates gRPC service definitions, stubs, and implementations from protocol buffers to accelerate high-performance API development.

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SKILL.md
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---
name: generating-grpc-services
description: |
  Generate gRPC service definitions, stubs, and implementations from Protocol Buffers.
  Use when creating high-performance gRPC services.
  Trigger with phrases like "generate gRPC service", "create gRPC API", or "build gRPC server".
  
allowed-tools: Read, Write, Edit, Grep, Glob, Bash(api:grpc-*)
version: 1.0.0
author: Jeremy Longshore <[email protected]>
license: MIT
---

# Generating Grpc Services

## Overview


This skill provides automated assistance for grpc service generator tasks.
This skill provides automated assistance for the described functionality.

## Prerequisites

Before using this skill, ensure you have:
- API design specifications or requirements documented
- Development environment with necessary frameworks installed
- Database or backend services accessible for integration
- Authentication and authorization strategies defined
- Testing tools and environments configured

## Instructions

1. Use Read tool to examine existing API specifications from {baseDir}/api-specs/
2. Define resource models, endpoints, and HTTP methods
3. Document request/response schemas and data types
4. Identify authentication and authorization requirements
5. Plan error handling and validation strategies
1. Generate boilerplate code using Bash(api:grpc-*) with framework scaffolding
2. Implement endpoint handlers with business logic
3. Add input validation and schema enforcement
4. Integrate authentication and authorization middleware
5. Configure database connections and ORM models
1. Write integration tests covering all endpoints


See `{baseDir}/references/implementation.md` for detailed implementation guide.

## Output

- `{baseDir}/src/routes/` - Endpoint route definitions
- `{baseDir}/src/controllers/` - Business logic handlers
- `{baseDir}/src/models/` - Data models and schemas
- `{baseDir}/src/middleware/` - Authentication, validation, logging
- `{baseDir}/src/config/` - Configuration and environment variables
- OpenAPI 3.0 specification with complete endpoint definitions

## Error Handling

See `{baseDir}/references/errors.md` for comprehensive error handling.

## Examples

See `{baseDir}/references/examples.md` for detailed examples.

## Resources

- Express.js and Fastify for Node.js APIs
- Flask and FastAPI for Python APIs
- Spring Boot for Java APIs
- Gin and Echo for Go APIs
- OpenAPI Specification 3.0+ for API documentation

Overview

This skill generates complete gRPC service definitions, client and server stubs, and starter implementations from Protocol Buffer (proto) files. It speeds up building high-performance RPC APIs by producing compilable proto schemas, language-specific stubs, and integration scaffolding. Use it to jumpstart production-ready gRPC servers and clients with consistent patterns for auth, validation, and testing.

How this skill works

The skill inspects your API design or provided .proto files and infers service methods, messages, and RPC semantics. It emits proto definitions, generates language-specific stubs (Python, Go, Java, Node), and scaffolds server-side handlers, middleware hooks, and basic tests. It can integrate authentication middleware, input validation, and database wiring based on simple configuration or design notes.

When to use it

  • Creating a new high-performance RPC API from an API design or proto draft
  • Standardizing gRPC services across multiple languages and teams
  • Rapidly scaffolding server handlers and client stubs for microservices
  • Prototyping service contracts and testing inter-service integrations
  • Automating boilerplate generation during CI/CD or project setup

Best practices

  • Start with a clear API contract: list services, RPC methods, and message schemas before generation
  • Keep proto files versioned and organized by domain to manage breaking changes
  • Generate stubs for all target languages and add custom handwritten logic only in handler files
  • Include authentication and validation hooks in the scaffold to avoid security gaps
  • Create automated tests for each RPC method and validate via integration tests with a running server

Example use cases

  • Generate a payment processing gRPC service with request/response messages and retry semantics
  • Create cross-language client and server stubs for a user-profile microservice (Python server, Go client)
  • Scaffold telemetry and logging middleware for an internal metrics collection service
  • Auto-generate proto definitions from API specs and produce CI artifacts for deployable stubs
  • Build a proof-of-concept gRPC API to validate latency and binary payloads before full implementation

FAQ

What inputs do I need to provide?

Provide API design notes or a draft .proto file describing services, RPC methods, and message fields; include authentication and persistence requirements if you want integration scaffolding.

Which languages are supported for stub generation?

Common targets include Python, Go, Java, and Node.js; the skill outputs standard proto files so additional languages supported by protoc can be added.