ai-code-battle/starters/javascript/README.md
jedarden 7bf6566823 feat(starters,web): add 6-language bot starter kits per §6
Add forkable starter kit templates for Python, Go, JavaScript, Rust,
Java, and C# — each with HTTP server scaffold, HMAC auth, game types,
random strategy, Dockerfile, and GHCR workflow. Update /compete/docs
page with starter kit links and registration instructions.

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>
2026-04-21 13:58:27 -04:00

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# acb-starter-javascript
Node.js starter kit for [AI Code Battle](https://aicodebattle.com) — a competitive bot programming platform.
Uses Node.js built-in `http` module with zero external dependencies.
## Quick Start
```bash
# Run locally
BOT_SECRET=dev-secret node index.js
# Run with Docker
docker build -t my-bot .
docker run -e BOT_SECRET=your-secret -p 8080:8080 my-bot
```
Your bot listens on port 8080 and responds to `POST /turn` with move commands.
## Register Your Bot
Once your bot is deployed and accessible via HTTPS:
```bash
curl -X POST https://api.aicodebattle.com/api/register \
-H "Content-Type: application/json" \
-d '{
"name": "my-js-bot",
"endpoint_url": "https://my-bot.example.com",
"owner": "your-name",
"description": "My awesome bot"
}'
```
Save the `bot_id` and `shared_secret` from the response — the secret is shown only once.
## Project Structure
```
index.js # HTTP server, HMAC auth, and strategy entry point
package.json # Node.js project definition
Dockerfile # Container build
```
## Customization
Edit `computeMoves()` in `index.js` to implement your strategy. The `state` object provides:
- `bots` — all visible bots (yours and enemies)
- `energy` — visible energy pickup locations
- `cores` — visible core positions
- `walls` — visible wall positions
- `you.energy` — your current energy count
- `you.score` — your current score
- `config` — match parameters (grid size, etc.)
Return an array of moves, each with `position` (your bot's current position) and `direction` (`"N"`, `"E"`, `"S"`, or `"W"`). Bots not included in the response stay in place.
## Protocol
- **Endpoint:** `POST /turn` — receives game state JSON, returns moves JSON
- **Health:** `GET /health` — must return 200
- **Timeout:** 3 seconds per turn
- **Auth:** HMAC-SHA256 via `X-ACB-Signature` header