brewlog/README.md

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# B{rew}log
**B{rew}log** is a self-hosted coffee logging platform for tracking your roasters, roasts, brews,
cafes and brewing gear.
The application is distributed as a single Rust binary that powers both an HTTP server and a
command-line client for the API. There is a web frontend built with [Tailwind CSS](https://tailwindcss.com/)
that enables client-side reactivity with [Datastar](https://data-star.dev/).
<!-- prettier-ignore-start -->
> [!NOTE]
> This project was built with significant assistance from Github Copilot. I used it as a test-bed
> for trying out newer agentic coding workflows, and to get some basic experience with Datastar,
> which had attracted my attention.
<!-- prettier-ignore-end -->
## Basic usage
B{rew}log ships as one executable. You decide whether it acts as a server or a client.
### First-time setup
On first start, you must set an admin username and password via the `BREWLOG_ADMIN_USERNAME` and `BREWLOG_ADMIN_PASSWORD` environment variables:
```bash
BREWLOG_ADMIN_USERNAME="admin" BREWLOG_ADMIN_PASSWORD="your-secure-password" brewlog serve
```
This creates the admin user in the database. On subsequent starts, the environment variables are not required.
### Authentication
Brewlog supports two authentication methods:
1. **Web Frontend**: Session-based authentication via login page
2. **CLI/API**: Token-based authentication via Bearer tokens
#### Web Authentication
1. Start the server and browse to the frontend
2. Click "Login" in the navigation bar
3. Sign in with username `admin` and your password
4. You're now authenticated and can create/update/delete records
#### CLI/API Authentication
First, create an API token:
```bash
brewlog create-token --name "my-cli-token"
# You will be prompted for username and password.
# Alternatively, you can provide them via flags:
# brewlog create-token --name "my-cli-token" --username admin --password secret
# Username: admin
# Password: ********
#
# Token created successfully!
# Token ID: nye9BDqnLL
# Token Name: my-cli-token
#
# ⚠ Save this token securely - it will not be shown again:
#
# dEadB3efDeadb33fdeadb33F...
#
# Export it in your environment:
# export BREWLOG_TOKEN=dEadB3efDeadb33fdeadb33F...
```
Export the token and use it for all CLI commands:
```bash
export BREWLOG_TOKEN="dEadB3efDeadb33fdeadb33F..."
export BREWLOG_URL=http://localhost:3000
# Now all write operations work
brewlog add-roaster \
--name "Radical Roasters" \
--country "UK" \
--city "Bristol" \
--homepage "https://radicalroasters.co.uk"
brewlog add-roast \
--roaster-id "deadbeef" \
--name "Chelbesa Lot 2" \
--origin "Ethiopia" \
--region "Gedeo" \
--producer "Chelbesa Cooperative" \
--process "Washed" \
--tasting-notes "Blueberry, Jasmine"
```
#### Token Management
```bash
# List your active tokens
brewlog list-tokens
# Revoke a token
brewlog revoke-token --id abc123
```
#### API Usage
For direct API access, include your token as a Bearer token:
```bash
curl http://localhost:3000/api/v1/roasters \
-H "Authorization: Bearer dEadB3efDeadb33fdeadb33F..." \
--json '{"name":"Radical Roasters","country":"UK"}'
```
**Note**: All read operations (GET requests) are public and don't require authentication. Only write operations (POST/PUT/DELETE) require authentication.
## Installation
At present, the only way to use `brewlog` is to build it from source:
```bash
git clone https://github.com/jnsgruk/brewlog.git
cd brewlog
cargo build --release
```
The resulting binary lives at `target/release/brewlog`.
During development you can run directly:
```bash
cargo run -- serve
```
## Testing
The project includes a number of unit and integration tests, all of which can be executed with `cargo`:
```bash
cargo test
```