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by Kai
Express.js authentication backend with JWT-based access tokens, refresh token rotation, and role-based access control. Features asymmetric RS256 signing with JWKS endpoint, SQLite persistence, device fingerprinting, and automatic cleanup of expired tokens. Includes registration, login, session management, and admin-only endpoints—ready to integrate with TypeScript applications requiring enterprise-grade auth.
TetreesAI backend API — a production-ready authentication and session management service built with Express.js and TypeScript. Features JWT-based access tokens with asymmetric RS256 signing, refresh token rotation, role-based access control (RBAC), device fingerprinting, and automatic cleanup of expired tokens.
/api/health endpoint for monitoringnpm install
npm run build
npm start
The server listens on port 9019 by default.
npm run dev
| Variable | Description | Default |
|---|---|---|
PORT | Server port | 9019 |
POST /api/auth/registerRegister a new user account.
Request:
{
"email": "user@example.com",
"password": "SecureP@ss123",
"roles": ["user"]
}
Response:
{
"data": {
"user": { "id": "uuid", "email": "user@example.com", "roles": ["user"] },
"access_token": "eyJhbGc...",
"refresh_token": "a1b2c3d4..."
}
}
POST /api/auth/loginAuthenticate user and receive token pair.
Request:
{
"email": "user@example.com",
"password": "SecureP@ss123"
}
Response: Same as register endpoint.
POST /api/auth/token/refreshRotate refresh token to obtain new access/refresh pair.
Request:
{
"refresh_token": "a1b2c3d4..."
}
Response:
{
"data": {
"access_token": "eyJhbGc...",
"refresh_token": "f6a1b2c3..."
}
}
POST /api/auth/token/revokeRevoke specific tokens or all user sessions. Requires Authorization: Bearer <access_token> header.
Request (revoke all):
{
"revoke_all": true
}
Request (revoke specific refresh token):
{
"refresh_token": "a1b2c3d4..."
}
Response:
{
"data": {
"message": "All tokens revoked"
}
}
POST /api/auth/logoutLogout current session. Blacklists access token and optionally revokes refresh token. Requires Authorization: Bearer <access_token> header.
Request:
{
"refresh_token": "a1b2c3d4..."
}
Response:
{
"data": {
"message": "Logged out successfully"
}
}
GET /api/auth/meGet authenticated user profile. Requires Authorization: Bearer <access_token> header.
Response:
{
"data": {
"id": "uuid",
"email": "user@example.com",
"roles": ["user"]
}
}
GET /api/auth/sessionsList all active sessions for authenticated user. Requires Authorization: Bearer <access_token> header.
Response:
{
"data": {
"sessions": [
{
"id": "session-uuid",
"device_fingerprint": "abc123def456",
"created_at": "2025-01-15T08:00:00.000Z",
"last_used_at": "2025-01-15T10:30:00.000Z"
}
]
}
}
GET /api/auth/jwksReturns JSON Web Key Set for token verification.
Response:
{
"keys": [
{
"kty": "RSA",
"kid": "primary",
"use": "sig",
"alg": "RS256",
"n": "0vx7agoebGcQ...",
"e": "AQAB"
}
]
}
GET /api/auth/publicPublic endpoint (no authentication required).
Response:
{
"data": {
"message": "This is a public endpoint"
}
}
GET /api/auth/admin-onlyProtected endpoint for admin role only. Requires Authorization: Bearer <access_token> header with admin role.
Response:
{
"data": {
"message": "Welcome, admin"
}
}
GET /api/healthHealth check endpoint.
Response:
{
"data": {
"status": "ok",
"timestamp": "2025-01-15T10:30:00.000Z"
}
}
POST /api/admin/cleanupTrigger immediate cleanup of expired tokens and revoked sessions.
Response:
{
"data": {
"expired_tokens_removed": 3,
"revoked_sessions_removed": 1,
"blacklisted_tokens_removed": 2,
"timestamp": "2025-01-15T10:30:00.000Z"
}
}
Spin up an isolated sandbox and run it server-side — no local setup.
The sandbox audition completed and the detected runnable path passed.
This Express backend / api completed archive review with strong static results. Structure, dependency manifests, documentation, functional source, and common risk patterns were checked by the Tetrees verification pipeline; runtime phases are stated separately.
Deterministic AVCP artifact review
Pipeline avcp-2026-08-04.1 · SHA-256 afb7953f4cf36ad5…
This version-scoped review deterministically inspects the submitted archive for structure, dependencies, documentation, functional source, and common malicious or high-risk signals. Build and test phases are reported as passed only after an isolated sandbox audition. It is not a guarantee of perfect security.
Reviewed Aug 4, 2026
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25 ratings
Dropped it into my stack and it just worked. Picked up this automation setup for a client workflow — No spaghetti — the folder layout is sane. Five stars, would recommend to my team.
Better than I expected. Picked up "Backend JWT Login Module" for a client workflow — Handles the edge cases I usually have to patch myself.
This is a keeper. TypeScript types are actually accurate, no fighting the compiler, and docs were clear enough that I never had to open an issue. Minor tweaks needed for my use case but nothing broke.
Genuinely impressed. Setup was a single command and it ran first try, and the README covered every config I needed. Minor tweaks needed for my use case but nothing broke.
Shipped with this same week. Picked up "Backend JWT Login Module" for a client workflow — No spaghetti — the folder layout is sane. Docking half a star only because I wanted a couple more examples.
Rock solid so far. Handles the edge cases I usually have to patch myself, and docs were clear enough that I never had to open an issue. Docking half a star only because I wanted a couple more examples.
Saved me a ton of time. Picked up "Backend JWT Login Module" for a client workflow — Components are cleanly separated and easy to extend. Will definitely check their other products.
Better than I expected. As someone who automates these all day, no spaghetti — the folder layout is sane.
Clean and well thought out. Dropped this automation setup straight into the workflow; the README covered every config I needed.
Punches well above its price. Dropped this automation setup straight into the workflow; the walkthrough got me running in minutes.
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