auth0-integration 0.2.0

Auth0 client library for M2M token retrieval and JWT validation (RS256)
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# auth0-integration

A Rust service for Auth0 integration with JWT validation using RS256.

## Features

- Auth0 client credentials (M2M) authentication flow
- JWT token validation with JWKS key discovery
- Async HTTP server with Axum web framework
- Automatic token refresh and caching
- Configurable via environment variables

## Installation

Add to your `Cargo.toml`:

```toml
[dependencies]
auth0-integration = "0.1"
```

## Configuration

Set these environment variables:

- `AUTH0_DOMAIN` - Your Auth0 tenant domain (e.g., `your-tenant.us.auth0.com`)
- `AUTH0_CLIENT_ID` - Machine-to-machine application client ID
- `AUTH0_CLIENT_SECRET` - Machine-to-machine application client secret
- `AUTH0_AUDIENCE` - API identifier registered in Auth0
- `PORT` - HTTP server port (default: 8080)
- `RUST_LOG` - Tracing filter (default: `auth0_integration=debug,tower_http=debug`)

## Quick Start

```bash
# Copy and configure environment variables
cp .env.example .env

# Build the project
cargo build

# Run the server
cargo run
```

## Docker

```bash
docker compose up --build
```

## License

MIT