PR 4 of the multi-user accounts series. Lands the link-only
invitation flow — admin generates a shareable URL, copies it,
sends it via any channel. No email service needed.
API surface
- GET /api/account/invitations — list pending (admin+)
- POST /api/account/invitations — create (admin+)
- DELETE /api/account/invitations/[id] — revoke (admin+)
- GET /api/invitations/[token]/peek — public, rate-limited per-IP
- POST /api/invitations/[token]/redeem — authenticated, rate-limited per-IP
Token lifecycle
- POST returns the plaintext token + share URL exactly ONCE in
the response. We store only the SHA-256 hash. There is no
endpoint that resurfaces it; if the admin dismisses the dialog
without copying, the only recourse is to revoke and re-issue.
- Peek and redeem take the plaintext token in the URL path, hash
it in TS via `hashInviteToken`, and look up by `token_hash`.
Two new SECURITY DEFINER RPCs back the cross-RLS work
(migration 019):
- `peek_invitation` — anonymous read. Returns a uniform JSON
envelope: `{ ok, account_name, role, expires_at }` or
`{ ok: false, reason: not_found|used|expired }`. The route
forwards verbatim so the join page can branch cleanly.
- `redeem_invitation` — authenticated. Locks the invite row
`FOR UPDATE`, validates expiry/usage, refuses if the caller is
already in a shared account OR their personal account has any
domain rows (checked across all 11 user-creatable parent
tables), then atomically moves profile.account_id +
account_role, stamps the invitation accepted, and deletes the
orphan personal account. Single transaction.
Error contract
- 22023 (invalid_parameter_value) → 400 — not_found / used / expired
- 42501 (insufficient_privilege) → 401 — caller not authenticated
- 23505 (unique_violation, reused) → 409 — caller's account has data,
or they're already a
member of the inviter's
account / another shared
account
Rate limiting
- Two new buckets in `RATE_LIMITS`: invitationPeek (30/min/IP)
and invitationRedeem (10/min/IP). Belt-and-braces against
token enumeration even though 256-bit entropy makes it
theoretical. Uses the existing fixed-window in-memory limiter.
Why no peek-then-redeem two-step on the server
- Peek is read-only and idempotent; redeem locks `FOR UPDATE` so
two concurrent redemptions can't both win. The peek result is
cosmetic ("show me what I'm joining"); the actual write
happens entirely inside the redeem RPC's transaction, so a
TOCTOU between peek and redeem just means the user sees the
same `{ ok: false, reason }` on the next render.
Verification
- `npm run lint` → 0 errors (same 20 pre-existing warnings)
- `npm run typecheck` → clean
- `npm test` → 366/366 pass
- `npm run build` → succeeds; the 4 new routes register as ƒ
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
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|---|---|---|
| .github | ||
| public | ||
| src | ||
| supabase/migrations | ||
| .editorconfig | ||
| .env.local.example | ||
| .gitignore | ||
| .prettierignore | ||
| .prettierrc | ||
| AGENTS.md | ||
| CHANGELOG.md | ||
| CLAUDE.md | ||
| components.json | ||
| CONTRIBUTING.md | ||
| eslint.config.mjs | ||
| LICENSE | ||
| next.config.ts | ||
| package-lock.json | ||
| package.json | ||
| postcss.config.mjs | ||
| README.md | ||
| tsconfig.json | ||
| vitest.config.ts | ||
wacrm — CRM Template for WhatsApp
Self-hostable CRM template for WhatsApp® — shared inbox, contacts, sales pipelines, broadcasts, and no-code automations. Fork it, brand it, host it.
The marketing site and self-host docs live in a separate repo: ArnasDon/wacrm-site (wacrm.tech). This repo is the product — clone or fork it to run your own CRM.
What you get out of the box
- Shared inbox on the official WhatsApp Business API — multiple agents working one number, per-conversation assignment, status, and notes.
- Contacts + tags + custom fields, CSV import, deduplication.
- Sales pipelines (Kanban) with deals linked to conversations.
- Broadcasts with Meta-approved templates, delivery + read tracking, per-recipient variable substitution.
- No-code automations — triggers on inbound messages, new contacts, keywords, or schedule; conditional branches, waits, tags, webhooks. Visual builder.
- Real-time dashboard — response times, daily volume, pipeline value, cross-module activity feed.
- Account management — email, password, avatar, global sign-out.
Why fork this?
This is a template, not a product. Forking means you get:
- Full ownership — your code, your Supabase project, your domain, your data. No SaaS lock-in, no seat pricing, no trust dance.
- Full customisation — add the fields your team needs, remove the modules you don't, redesign anything. The stack is boring on purpose (Next.js + Supabase + Tailwind) so the learning curve is short.
- Zero ops to start — Hostinger Managed Node.js deploys a fork in a few clicks. No Docker, no Kubernetes, no infra team needed.
- Real security primitives — token encryption (AES-256-GCM), RLS on every table, HMAC-verified webhooks, CSP, rate limiting, CI typecheck/build on every PR.
Not a framework. Not an SDK. A concrete, working CRM you can stand up in an afternoon and make yours.
Quick start
# Fork on GitHub first: https://github.com/ArnasDon/wacrm → Fork
git clone https://github.com/<your-username>/wacrm.git
cd wacrm
npm install
cp .env.local.example .env.local # fill in Supabase + Meta creds
npm run dev
Open http://localhost:3000. You'll be redirected to /login (or
/dashboard if already signed in).
Documentation
Full self-host documentation — Supabase migrations, WhatsApp Business API config, and production deploy — lives at wacrm.tech/docs (source: ArnasDon/wacrm-site).
Key pages:
- Getting started
- Supabase setup
- WhatsApp setup
- Environment variables
- Deploy on Hostinger
- Architecture
- Troubleshooting
Stack
- App — Next.js 16 (App Router), React 19, TypeScript, Tailwind v4.
- Data — Supabase (Postgres + Auth + Storage + RLS).
- WhatsApp — Meta Cloud API (official WhatsApp Business API).
Contributing
This is a template, not a collaborative product — the expected flow is
fork → customise → deploy, not upstream contribution. Bug reports
and security issues are welcome; feature PRs often belong in your fork
rather than here. Details in
CONTRIBUTING.md and
.github/SECURITY.md.
License
MIT. Fork it, brand it, host it.