Zobox

Zobox is a Zo-native, open-source inbox + sorter + router engine. It accepts arbitrary structured JSON messages with optional file attachments, stores them durably, and routes them according to configurable sorters.

Features

• Single ingestion endpoint: POST /messages with multipart or JSON support
• Filesystem-first storage: Envelopes in inbox/, attachments in files/, indexed by SQLite
• Type-driven sorters: Define types and sorters in zobox.config.toml
• Worker polling: GET /messages/next for building distributed subscribers
• Flexible routing: Send messages to webhooks, workers, or store locally
• Path templating: Control attachment storage with {channel}/{date}/{eventId}/{filename} patterns
• Multiple auth modes: Admin and read-only API keys via environment variables
• Lightweight: Bun/Hono server, easy to run as a Zo User Service or standalone

Quick Start

Get Zobox running locally in under 5 minutes:

1. Install Dependencies

bun install

Or with npm:

npm install

2. Set Up Environment

export ZOBOX_ADMIN_API_KEY="dev-admin-key"
export ZOBOX_READ_API_KEY="dev-read-key"

3. Initialize and Start

ZOBOX_ADMIN_API_KEY="dev-admin-key" bunx zobox init --base-dir /home/workspace/Inbox

This command:

• Creates the directory structure (inbox/, files/, db/, logs/)
• Copies example config files
• Runs database migrations
• Starts the server

Server listens on http://localhost:8787 by default.

4. Ingest Your First Item

curl -X POST "http://localhost:8787/messages" \
  -H "content-type: application/json" \
  -H "x-api-key: $ZOBOX_ADMIN_API_KEY" \
  -d '{
    "type": "update",
    "payload": { "text": "First idea" }
  }'

5. List Items

curl "http://localhost:8787/messages?limit=20" \
  -H "x-api-key: $ZOBOX_READ_API_KEY"

You should see your item in the response!

Development

Prerequisites

• Bun >= 1.1 (or Node.js >= 18)
• SQLite (included with Bun)

Setup

# Install dependencies
bun install

# Copy example config
cp config/zobox.config.example.toml /home/workspace/Inbox/zobox.config.toml

# Set environment variables
export ZOBOX_ADMIN_API_KEY="dev-admin-key"
export ZOBOX_READ_API_KEY="dev-read-key"
export ZOBOX_BASE_DIR="/home/workspace/Inbox"

Running

# Development mode (with hot reload)
bun run dev

# Production mode
bun run start

# Or directly
bun run src/server.ts

CLI Commands

# Initialize directory structure, copy configs, run migrations, and start server
bunx zobox init [--base-dir PATH] [--port PORT]

# Start server only (assumes init already done)
bunx zobox serve [--base-dir PATH] [--port PORT]

# Run migrations only
bunx zobox migrate [--base-dir PATH]

# Help
bunx zobox help

Note: The --base-dir flag always takes precedence over ZOBOX_BASE_DIR environment variable and any base_dir value in the config file.

Testing

# Run tests
bun run test

# Run tests in watch mode
bun run test:watch

# Lint and check code
bun run lint

# Lint and auto-fix issues
bun run check

Git Hooks

This project uses Lefthook for automated pre-commit and pre-push checks:

Pre-commit hooks (run in parallel):

• format: Auto-format code using Biome
• lint: Check code quality with Biome
• types: TypeScript type checking with tsc --noEmit
• test-related: Run tests when test files or source files change

Pre-push hooks:

• test-all: Run full test suite
• lint-strict: Strict linting with error-on-warnings

Hooks are installed automatically via the prepare script when you run bun install.

Customizing Hooks

To customize hooks for your local environment, copy the example:

cp .lefthook-local.yml.example .lefthook-local.yml

Then edit .lefthook-local.yml to skip expensive checks during fast iteration:

# Skip type checking and tests on commit (faster iteration)
pre-commit:
  commands:
    types:
      skip: true
    test-related:
      skip: true

Your local customizations won't be committed (.lefthook-local.yml is in .gitignore).

Project Structure

zobox/
  bin/
    zobox.ts              # CLI entrypoint
  src/
    types.ts               # TypeScript type definitions
    config.ts              # TOML config loader
    storage.ts             # SQLite + filesystem storage
    sorters.ts           # sorter and routing logic
    server.ts              # Hono HTTP server
  config/
    zobox.config.example.toml
    routes.example.json
  db/
    migrations/
      001_init.sql
  docs/
    API.md                 # API reference
    CONFIGURATION.md       # Configuration guide

Documentation

• API Reference: Complete HTTP API documentation with examples
• Configuration Guide: TOML schema, path templates, sorters, and route destinations

Zo Integration

Deploy Zobox as a Zo User Service:

1. Initialize Zobox (One-Time Setup)

ZOBOX_ADMIN_API_KEY="your-admin-key" bunx zobox init --base-dir /home/workspace/Inbox

This creates the directory structure, copies config files, and runs migrations. You can stop the server after initialization (Ctrl+C).

2. Create User Service

Configure in Zo:

• Label: zobox
• Type: http
• Local port: 8787
• Entrypoint: bunx zobox serve
• Workdir: /home/workspace/Inbox

3. Set Environment Variables

Add to your Zo service configuration:

• ZOBOX_ADMIN_API_KEY (required)
• ZOBOX_READ_API_KEY (optional, recommended)

Your Zobox service will start automatically with Zo.

API Overview

See docs/API.md for complete documentation.

Core Endpoints

• POST /messages: Ingest messages (JSON or multipart with attachments)
• GET /messages: List messages with filtering and cursor pagination (response key: items)
• GET /messages/next: Worker polling for unclaimed messages
• POST /messages/:id/ack: Acknowledge item processing
• GET /health: Health check

Authentication

# Admin key (full access)
x-api-key: YOUR_ADMIN_KEY

# Read key (read-only)
x-api-key: YOUR_READ_KEY

# Or Bearer token
authorization: Bearer YOUR_KEY

Configure in zobox.config.toml:

[auth]
admin_api_key_env_var = "ZOBOX_ADMIN_API_KEY"
read_api_key_env_var  = "ZOBOX_READ_API_KEY"
required = true

Ingest Examples

JSON only:

curl -X POST "http://localhost:8787/messages" \
  -H "content-type: application/json" \
  -H "x-api-key: YOUR_ADMIN_KEY" \
  -d '{"type":"update","payload":{"text":"Hello"}}'

JSON + base64 attachments:

curl -X POST "http://localhost:8787/messages" \
  -H "content-type: application/json" \
  -H "x-api-key: YOUR_ADMIN_KEY" \
  -d '{
    "type":"post",
    "payload":{"title":"My post"},
    "attachments":[{"filename":"photo.jpg","mimeType":"image/jpeg","base64":"..."}]
  }'

Multipart with files:

curl -X POST "http://localhost:8787/messages" \
  -H "x-api-key: YOUR_ADMIN_KEY" \
  -F 'event={"type":"post","payload":{"title":"My post"}}' \
  -F '[email protected]'

Configuration

See docs/CONFIGURATION.md for complete guide.

Types and Sorters

Define types in zobox.config.toml:

[types.update]
description = "Generic status update"
channel = "Updates"

[sorters.updates]
type = "update"
files_path_template = "{baseFilesDir}/Updates/{date}/{eventId}/{filename}"
append_to_file = "/home/workspace/Inbox/updates.md"
destination = "store_only"

Path Templates

Control where attachments are stored using tokens:

• {baseFilesDir}: Base files directory
• {channel}: Item channel
• {date}: ISO date (YYYY-MM-DD)
• {eventId}: Item UUID
• {timestamp}: Sanitized timestamp
• {filename}: Final filename

Example: {baseFilesDir}/{channel}/{date}/{eventId}/{filename} Renders: /home/workspace/Inbox/files/Updates/2025-11-22/550e8400.../photo.jpg

Filename Strategies

• original: Keep original filename
• timestampPrefix: Prefix with 20251122T123456_
• eventIdPrefix: Prefix with item UUID
• uuid: Replace filename with new UUID

Route Destinations

Define routing in routes.json:

{
  "destinations": {
    "store_only": {
      "kind": "noop"
    },
    "publish_to_worker": {
      "kind": "http",
      "url": "http://localhost:9000/zobox/messages",
      "method": "POST",
      "enabled": true
    }
  }
}

Reference in sorter:

[sorters.posts]
type = "post"
destination = "publish_to_worker"

Storage Layout

Given base_dir = "/home/workspace/Inbox":

/home/workspace/Inbox/
  zobox.config.toml
  routes.json
  inbox/
    YYYY-MM-DD/
      <message-id>.json   # Message envelopes
  files/
    <channel>/
      YYYY-MM-DD/
        <item-id>/
          <filename>        # Attachments
  db/
    zobox.db              # SQLite index
    migrations/
      001_init.sql
  logs/                    # Reserved for future use

SQLite Schema

Table messages:

• id, type, channel, created_at
• file_path, file_dir
• attachments_count, has_attachments
• subscribed_by, subscribed_at
• summary (reserved for future previews)
• tags (JSON string)

Indexes on created_at, type, channel, has_attachments, tags for fast queries.