feat: Add .env.example for configuration and update README with new features, setup, and API endpoints.

This commit is contained in:
2026-01-06 05:22:54 +01:00
parent d05f8a0001
commit 9219a586b1
2 changed files with 225 additions and 78 deletions

83
.env.example Normal file
View File

@@ -0,0 +1,83 @@
# ============================================================================
# K-Template Configuration
# ============================================================================
# Copy this file to .env and adjust values for your environment.
# All values shown are defaults or examples.
# ============================================================================
# Server Configuration
# ============================================================================
HOST=127.0.0.1
PORT=3000
# ============================================================================
# Database Configuration
# ============================================================================
# SQLite (default)
DATABASE_URL=sqlite:data.db?mode=rwc
# PostgreSQL (alternative - requires postgres feature)
# DATABASE_URL=postgres://user:password@localhost:5432/mydb
# Connection pool settings
DB_MAX_CONNECTIONS=5
DB_MIN_CONNECTIONS=1
# ============================================================================
# Authentication Mode
# ============================================================================
# Options: session, jwt, both
# - session: Cookie-based sessions (requires auth-axum-login feature)
# - jwt: Bearer token authentication (requires auth-jwt feature)
# - both: Support both methods (try JWT first, fall back to session)
AUTH_MODE=jwt
# ============================================================================
# Session Configuration (for session/both modes)
# ============================================================================
# Must be at least 64 characters in production
SESSION_SECRET=your-super-secret-key-must-be-at-least-64-characters-long-for-security
# Set to true in production for HTTPS-only cookies
SECURE_COOKIE=false
# ============================================================================
# JWT Configuration (for jwt/both modes)
# ============================================================================
# Must be at least 32 characters in production
JWT_SECRET=your-jwt-secret-key-at-least-32-chars
# Optional: JWT issuer and audience for token validation
JWT_ISSUER=your-app-name
JWT_AUDIENCE=your-app-audience
# Token expiry in hours (default: 24)
JWT_EXPIRY_HOURS=24
# ============================================================================
# OIDC Configuration (optional - requires auth-oidc feature)
# ============================================================================
# Your OIDC provider's issuer URL (e.g., Keycloak, Auth0, Zitadel)
OIDC_ISSUER=https://your-oidc-provider.com
# Client credentials from your OIDC provider
OIDC_CLIENT_ID=your-client-id
OIDC_CLIENT_SECRET=your-client-secret
# Callback URL (must match what's configured in your OIDC provider)
OIDC_REDIRECT_URL=http://localhost:3000/api/v1/auth/callback
# Optional: Resource ID for audience verification
# OIDC_RESOURCE_ID=your-resource-id
# ============================================================================
# CORS Configuration
# ============================================================================
# Comma-separated list of allowed origins
CORS_ALLOWED_ORIGINS=http://localhost:5173,http://localhost:3000
# ============================================================================
# Production Mode
# ============================================================================
# Set to true/production/1 to enable production checks (secret length, etc.)
PRODUCTION=false

220
README.md
View File

@@ -1,100 +1,164 @@
# k-template # k-template
A production-ready, modular Rust template for K-Suite applications, following Hexagonal Architecture principles. A production-ready, modular Rust API template for K-Suite applications, following Hexagonal Architecture principles.
## Features ## Features
- **Hexagonal Architecture**: Clear separation of concerns between Domain, Infrastructure, and API layers. - **Hexagonal Architecture**: Clear separation between Domain, Infrastructure, and API layers
- **Modular & Swappable**: Vendor implementations (databases, message brokers) are behind feature flags and trait objects. - **Multiple Auth Modes**: Session-based, JWT, or both - fully configurable
- **Feature-Gated Dependencies**: Compile only what you need. Unused dependencies are not included in the build. - **OIDC Integration**: Connect to any OpenID Connect provider (Keycloak, Auth0, Zitadel, etc.)
- **Cargo Generate Ready**: Pre-configured for `cargo-generate` to easily scaffold new services. - **Database Flexibility**: SQLite (default) or PostgreSQL via feature flags
- **Testable**: Domain logic is pure and easily testable; Infrastructure is tested with integration tests. - **Type-Safe Configuration**: Newtypes with built-in validation for all security-sensitive values
- **Cargo Generate Ready**: Pre-configured for scaffolding new services
## Quick Start
### 1. Clone and Configure
```bash
git clone https://github.com/GKaszewski/k-template.git my-api
cd my-api
cp .env.example .env
# Edit .env with your configuration
```
### 2. Run
```bash
# Development (with hot reload via cargo-watch)
cargo watch -x run
# Or simply
cargo run
```
The API will be available at `http://localhost:3000/api/v1/`.
## Configuration
All configuration is done via environment variables. See [.env.example](.env.example) for all options.
### Authentication Modes
Set `AUTH_MODE` to one of:
| Mode | Description | Required Features |
|------|-------------|-------------------|
| `session` | Cookie-based sessions | `auth-axum-login` |
| `jwt` | Bearer token authentication | `auth-jwt` |
| `both` | Try JWT first, fall back to session | `auth-axum-login`, `auth-jwt` |
### OIDC Integration
To enable OIDC login (e.g., "Login with Google"):
1. Enable the `auth-oidc` feature (enabled by default)
2. Configure your OIDC provider in `.env`:
```env
OIDC_ISSUER=https://your-provider.com
OIDC_CLIENT_ID=your-client-id
OIDC_CLIENT_SECRET=your-secret
OIDC_REDIRECT_URL=http://localhost:3000/api/v1/auth/callback
```
3. Users can login via `GET /api/v1/auth/login/oidc`
## Feature Flags
Features are configured in `api/Cargo.toml`:
```toml
[features]
default = ["sqlite", "auth-axum-login", "auth-oidc", "auth-jwt"]
```
| Feature | Description |
|---------|-------------|
| `sqlite` | SQLite database support (default) |
| `postgres` | PostgreSQL database support |
| `auth-axum-login` | Session-based authentication |
| `auth-oidc` | OpenID Connect integration |
| `auth-jwt` | JWT token authentication |
| `auth-full` | All auth features combined |
### Common Configurations
**JWT-only API (stateless)**:
```toml
default = ["sqlite", "auth-jwt"]
```
**OIDC + JWT (typical SPA backend)**:
```toml
default = ["sqlite", "auth-oidc", "auth-jwt"]
```
**Full-featured (all auth methods)**:
```toml
default = ["sqlite", "auth-full"]
```
## API Endpoints
### Authentication
| Method | Endpoint | Description |
|--------|----------|-------------|
| `POST` | `/api/v1/auth/login` | Login with email/password |
| `POST` | `/api/v1/auth/register` | Register new user |
| `POST` | `/api/v1/auth/logout` | Logout (session mode) |
| `GET` | `/api/v1/auth/me` | Get current user |
| `POST` | `/api/v1/auth/token` | Get JWT for session user |
| `GET` | `/api/v1/auth/login/oidc` | Start OIDC login flow |
| `GET` | `/api/v1/auth/callback` | OIDC callback |
## Project Structure ## Project Structure
The workspace consists of three main crates: ```
k-template/
- **`template-domain`**: The core business logic. ├── domain/ # Core business logic (no I/O dependencies)
- Contains Entities, Value Objects, Repository Interfaces (Ports), and Services. │ └── src/
- **Dependencies**: Pure Rust only (no I/O, no heavy frameworks). │ ├── entities.rs # User entity
│ ├── value_objects.rs # Email, Password, OIDC newtypes
- **`template-infra`**: The adapters layer. │ ├── repositories.rs # Repository interfaces (ports)
- Implements the Repository interfaces defined in `template-domain`. │ └── services.rs # Domain services
- Content is heavily feature-gated (e.g., `sqlite`, `postgres`, `broker-nats`).
├── infra/ # Infrastructure adapters
- **`template-api`**: The application entry point (Driving Adapter). │ └── src/
- Wires everything together using dependency injection. │ ├── auth/ # Auth backends (OIDC, JWT)
- Handles HTTP/REST/gRPC interfaces. │ └── user_repository.rs
## Getting Started ├── api/ # HTTP API layer
│ └── src/
### Prerequisites │ ├── routes/ # API endpoints
│ ├── config.rs # Configuration
- Rust (latest stable) │ └── state.rs # Application state
- `cargo-generate` (`cargo install cargo-generate`)
├── .env.example # Configuration template
### Creating a New Project └── compose.yml # Docker Compose for local dev
Use `cargo-generate` to scaffold a new project from this template:
```bash
cargo generate --git https://github.com/your-org/k-template.git
``` ```
You will be prompted for: ## Development
1. **Project Name**: The name of your new service.
2. **Database**: Choose between `sqlite` (default) or `postgres`.
The template will automatically clean up unused repository implementations based on your choice.
### Running Tests ### Running Tests
```bash ```bash
# Run all tests # All tests
cargo test cargo test --all-features
# Run tests for a specific feature (e.g., postgres) # Domain tests only
cargo test -p template-infra --no-default-features --features postgres cargo test -p domain
``` ```
## Configuration & Feature Flags ### Database Migrations
This template uses Cargo features to control compilation of infrastructure adapters. ```bash
# SQLite
sqlx migrate run --source migrations_sqlite
| Feature | Description | Crate | # PostgreSQL
|---------|-------------|-------| sqlx migrate run --source migrations_postgres
| `sqlite` | Enables SQLite repository implementations and dependencies | `template-infra`, `template-api` |
| `postgres` | Enables PostgreSQL repository implementations and dependencies | `template-infra`, `template-api` |
| `broker-nats`| Enables NATS messaging support | `template-infra` |
### Switching Databases
To switch from the default SQLite to PostgreSQL in an existing project, update `Cargo.toml`:
**`template-api/Cargo.toml`**:
```toml
[features]
default = ["postgres"]
# ...
``` ```
**`template-infra/Cargo.toml`**: ## License
```toml
[features]
default = ["postgres"]
# ...
```
## Architecture Guide MIT
### Adding a New Feature
1. **Domain**: Define the Entity, Value Objects, and Repository Interface in `template-domain`.
2. **Infra**: Implement the Repository Interface in `template-infra`.
- **Important**: Wrap your implementation in a feature flag (e.g., `#[cfg(feature = "my-feature")]`).
3. **API**: Wire the new service in `template-api/src/main.rs` or a dedicated module.
### Vendor Isolation
All external dependencies (SQLx, NATS, etc.) should stay within `template-infra` or `template-api`. The `template-domain` crate should remain agnostic to specific technologies.