# Epic 4: Sample Feature Service (Blog Service)

## Overview
Create a complete sample feature service (Blog Service) to demonstrate the framework. The Blog Service is an independent service with its own entry point (`cmd/blog-service/`), gRPC server, and database schema. It uses service clients to communicate with core services (Auth, Identity, Authz, Audit). This serves as a reference implementation for future developers creating feature services.

**Key Principle:** Blog Service demonstrates how to create a feature service that integrates with the platform using service clients and Consul service discovery.

## Stories

### 4.1 Complete Blog Service
- [Story: 4.1 - Blog Service](./4.1-blog-module.md)
- **Goal:** Create a complete sample blog service to demonstrate the framework.
- **Deliverables:** Complete blog service with entry point, gRPC server, database schema, CRUD operations, permissions, service client integration, and integration tests

## Deliverables Checklist
- [ ] Blog service entry point (`cmd/blog-service/main.go`)
- [ ] Blog service directory structure (`services/blog/`)
- [ ] gRPC service definition (`api/proto/blog.proto`)
- [ ] gRPC server implementation
- [ ] Service manifest defines permissions
- [ ] Blog post domain model defined
- [ ] Ent schema for blog posts (blog schema)
- [ ] Repository implements CRUD operations
- [ ] Service layer implements business logic
- [ ] Service uses service clients (Identity, Authz, Audit)
- [ ] Service registers with Consul
- [ ] Integration tests passing

## Acceptance Criteria
- Blog service is independently deployable
- Service entry point exists at `cmd/blog-service/main.go`
- Service registers with Consul on startup
- gRPC server starts on configured port
- CRUD operations work for blog posts
- Service uses IdentityServiceClient for user operations
- Service uses AuthzServiceClient for authorization
- Service uses AuditServiceClient for audit logging
- Service has its own database schema (blog schema)
- Service can be discovered by API Gateway via Consul