n8n-nodes-auth-service

Custom n8n community nodes for integrating with Auth Service — a self-hosted token authentication and authorization service.

What is Auth Service?

Auth Service is a self-hosted microservice that manages API tokens and authorization. It provides:

• Token management — create, edit, revoke tokens with granular per-zone permissions
• Zone-based authorization — define zones (e.g. orders, billing) with read/write/delete/all access levels
• Fast validation — validate tokens via a simple REST API (POST /validate)
• Admin dashboard — modern web UI with MFA protection
• Docker deployment — runs as a Docker container with Redis + SQLite/PostgreSQL

Quick Setup

# docker-compose.yml
services:
  redis:
    image: redis:7-alpine
    command: redis-server --requirepass changeme

  auth-service:
    image: ghcr.io/shlomiporush/auth-service:latest
    ports:
      - "8080:8080"
    environment:
      REDIS_URL: redis://:changeme@redis:6379
      ADMIN_API_KEY: your-secret-api-key
    depends_on:
      - redis

Start with docker compose up -d, then open http://localhost:8080 to set up your admin account.

For full documentation, see the Auth Service repository.

Nodes in this Package

| Node | Type | Description | |---|---|---| | Auth Service | Action | Full API access — validate tokens, manage zones & tokens | | Auth Webhook | Trigger | Webhook with built-in token validation (replaces Webhook + IF) |

Installation

Community Nodes (Recommended)

1. Go to Settings → Community Nodes in your n8n instance
2. Click Install a community node
3. Enter n8n-nodes-auth-service
4. Click Install

Manual Installation

cd ~/.n8n
npm install n8n-nodes-auth-service
# Restart n8n

Credentials

Add an Auth Service API credential in n8n:

| Field | Description | |---|---| | Base URL | Your Auth Service address (e.g. http://auth:8080) | | API Key | An API key from the Auth Service dashboard, or the ADMIN_API_KEY env var |

The credential is automatically tested on save by calling GET /tokens/ping.

Auth Service Node

Full API access to your Auth Service instance.

Operations

| Operation | Description | Required Scope | |---|---|---| | Validate Token | Check if a token is valid for a zone + permission level | (public endpoint) | | List Zones | Get all zones | zones:read | | Create Zone | Create a new zone | zones:write | | List Tokens | Get all tokens with their grants, status, and metadata | tokens:read | | Create Token | Create a new token with zone/level grants | tokens:write | | Edit Token | Update name, grants, active status, or expiration | tokens:write | | Delete Token | Delete a token permanently | tokens:write |

Example: Validate a token

Webhook → Auth Service (Validate Token) → IF (result == true) → Continue / Respond 403

Output:

{ "result": true }

Example: Automated setup

Trigger → Auth Service (Create Zone) → Auth Service (Create Token)

Auth Webhook Node

A webhook trigger that automatically validates tokens before executing the workflow.

Instead of building this:

Webhook → Auth Service (Validate) → IF (result) → Continue
                                  → IF (!result) → Respond 403

Use a single node:

Auth Webhook → Continue (token already validated)

Configuration

| Setting | Description | |---|---| | HTTP Method | GET, POST, PUT, PATCH, DELETE, HEAD | | Path | The full URL path after /webhook/ | | Auth Zone | Zone to validate against (dynamic dropdown) | | Auth Level | Read / Write / Delete / All | | Token Source | Authorization Header (Bearer) or Custom Header | | Custom Header Name | Header name when using Custom Header (e.g. X-Auth-Token) | | Respond | Immediately / When Last Node Finishes | | Response Code | HTTP status code to return on success (default: 200) |

How it works

1. A request comes in to the webhook URL
2. The node extracts the token from the configured source (Authorization header or custom header)
3. The token is validated against Auth Service (POST /validate with the configured zone + level)
4. Valid token → workflow executes, next node receives { headers, params, query, body }
5. Invalid/missing token → responds 403 Forbidden, workflow does NOT execute

Example: calling the webhook

curl -X POST https://your-n8n.com/webhook/my-api \
  -H "Authorization: Bearer tok_abc123" \
  -H "Content-Type: application/json" \
  -d '{"order_id": 42}'

API Key Scopes

API keys can be created in the Auth Service dashboard with granular scopes:

| Scope | Description | |---|---| | validate | Validate tokens via the API | | tokens:read | List tokens and zones | | tokens:write | Create, edit, delete tokens | | zones:read | List zones | | zones:write | Create zones |

The ADMIN_API_KEY environment variable always has full access to all scopes.

API Endpoints Used

| Endpoint | Method | Auth | Used By | |---|---|---|---| | /tokens/ping | GET | API Key | Credential test (no scope required) | | /tokens/zones | GET | API Key | Auth Service (List Zones), Auth Webhook (zone dropdown) | | /tokens/zones | POST | API Key | Auth Service (Create Zone) | | /tokens | GET | API Key | Auth Service (List Tokens) | | /tokens | POST | API Key | Auth Service (Create Token) | | /tokens/{id} | PATCH | API Key | Auth Service (Edit Token) | | /tokens/{id} | DELETE | API Key | Auth Service (Delete Token) | | /validate | POST | None | Auth Service (Validate), Auth Webhook |

License

MIT