wacrm/docs/environment-variables.md
Arnas Donauskas 7148c209a0
docs: end-to-end self-host setup guide
Adds docs/ with a reading-order flow that covers:
  - getting started (fork, install, run locally)
  - supabase setup + migrations
  - whatsapp business api + webhook wiring
  - environment variable reference
  - hostinger vps deploy walkthrough
  - automations cron scheduling
  - troubleshooting for the common issues

Rewrites the top-level README as a pointer into docs/ instead of the
create-next-app boilerplate.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
2026-04-19 20:52:08 +03:00

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3.4 KiB
Markdown

# Environment variables
All runtime configuration lives in `.env.local` during development and in
your host's environment settings in production. `.env.local.example` is a
minimal template; the table below is the full reference.
## Required
| Variable | Where to find it | Notes |
| --------------------------------- | -------------------------------------------------------------------- | --------------------------------------------------------------------- |
| `NEXT_PUBLIC_SUPABASE_URL` | Supabase → Project Settings → API → **Project URL** | Public. Shipped to the browser. |
| `NEXT_PUBLIC_SUPABASE_ANON_KEY` | Supabase → Project Settings → API → **anon / public** key | Public. Relies on RLS for safety. |
| `SUPABASE_SERVICE_ROLE_KEY` | Supabase → Project Settings → API → **service_role** key | **Secret.** Bypasses RLS. Used by webhook + admin routes only. |
| `ENCRYPTION_KEY` | Generate: `node -e "console.log(require('crypto').randomBytes(32).toString('hex'))"` | 64 hex chars (32 bytes, AES-256-CBC). **Rotating breaks existing tokens.** |
## Recommended
| Variable | Purpose |
| ---------------------- | ---------------------------------------------------------------------------------------- |
| `META_APP_SECRET` | Meta → App Settings → Basic → **App Secret**. Enables `X-Hub-Signature-256` verification on incoming webhooks. |
| `NEXT_PUBLIC_SITE_URL` | Canonical public URL (e.g., `https://crm.example.com`). Used for absolute URLs, sitemap, OG images. |
## Optional
| Variable | Purpose |
| --------------------------- | -------------------------------------------------------------------------------------------------------- |
| `AUTOMATION_CRON_SECRET` | Shared secret that protects `GET /api/automations/cron`. Required if you schedule the automations drain. See [automations-and-cron.md](./automations-and-cron.md). |
## Sample `.env.local`
```bash
# Supabase
NEXT_PUBLIC_SUPABASE_URL=https://abcd1234.supabase.co
NEXT_PUBLIC_SUPABASE_ANON_KEY=eyJhbGciOi...
SUPABASE_SERVICE_ROLE_KEY=eyJhbGciOi...
# Encryption — DO NOT change after first deploy
ENCRYPTION_KEY=3f9c0a7e4d8b2f1a6c5e8d4b9f0a2c6e8d4b9f0a2c6e8d4b9f0a2c6e8d4b9f0a
# Public URL + Meta webhook signing
NEXT_PUBLIC_SITE_URL=https://crm.example.com
META_APP_SECRET=abcdef0123456789...
# Automation cron
AUTOMATION_CRON_SECRET=generate-a-long-random-string
```
## Security checklist
- Never commit `.env.local`. The repo already ignores it.
- On Hostinger / any VPS, set env vars via the platform's **Environment**
panel rather than writing them into a tracked file on disk.
- Rotate `SUPABASE_SERVICE_ROLE_KEY` if it leaks — Supabase lets you
regenerate it under Project Settings → API.
- Treat `ENCRYPTION_KEY` like a database master key. Losing it means
connected WhatsApp accounts must reconnect; rotating it means the same.
## Next step
[Deploy on Hostinger →](./deployment-hostinger.md)