Self-hostable CRM template for WhatsApp — shared inbox, contacts, sales pipelines, broadcasts, and no-code automations. Fork it, brand it, host it.
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Arnas Donauskas b013861160
feat(api): invitation create + peek + redeem endpoints
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>
2026-05-31 17:32:46 +03:00
.github test: foundational Vitest suite for security + critical pure logic 2026-05-18 16:06:02 +03:00
public feat(inbox): WhatsApp-style doodle background in the chat area 2026-05-22 10:06:34 +03:00
src feat(api): invitation create + peek + redeem endpoints 2026-05-31 17:32:46 +03:00
supabase/migrations feat(api): invitation create + peek + redeem endpoints 2026-05-31 17:32:46 +03:00
.editorconfig chore: contributor experience — CoC, templates, Dependabot, editor configs 2026-04-20 21:16:21 +03:00
.env.local.example feat(templates): submit-to-Meta endpoint + component-based form builder 2026-05-29 15:34:58 +02:00
.gitignore fix(webhook): require META_APP_SECRET, fail closed 2026-04-20 18:54:52 +03:00
.prettierignore chore: contributor experience — CoC, templates, Dependabot, editor configs 2026-04-20 21:16:21 +03:00
.prettierrc chore: contributor experience — CoC, templates, Dependabot, editor configs 2026-04-20 21:16:21 +03:00
AGENTS.md Initial commit from Create Next App 2026-04-16 17:52:39 +03:00
CHANGELOG.md feat(api): invitation create + peek + redeem endpoints 2026-05-31 17:32:46 +03:00
CLAUDE.md Initial commit from Create Next App 2026-04-16 17:52:39 +03:00
components.json feat: initial commit 2026-04-16 17:53:27 +03:00
CONTRIBUTING.md chore: rename product to "CRM Template for WhatsApp" 2026-05-06 11:52:11 +03:00
eslint.config.mjs Initial commit from Create Next App 2026-04-16 17:52:39 +03:00
LICENSE chore: OSS metadata + LICENSE + SECURITY + complete env example 2026-04-20 20:41:14 +03:00
next.config.ts security: baseline response headers (CSP report-only + OWASP set) 2026-04-20 19:24:41 +03:00
package-lock.json feat(dashboard): adopt Tremor for charts — first integration 2026-05-31 14:42:10 +03:00
package.json feat(dashboard): adopt Tremor for charts — first integration 2026-05-31 14:42:10 +03:00
postcss.config.mjs Initial commit from Create Next App 2026-04-16 17:52:39 +03:00
README.md docs: add Deploy on Hostinger button to README 2026-05-19 17:04:25 +03:00
tsconfig.json Initial commit from Create Next App 2026-04-16 17:52:39 +03:00
vitest.config.ts test: foundational Vitest suite for security + critical pure logic 2026-05-18 16:06:02 +03:00

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.

Deploy on Hostinger

License: MIT CI Next.js 16 Supabase Stars

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:

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.