Files
evidencija-rezija/mailgun-webhook/.env.example
Knee Cola 7aeea9353d feat: implement MailGun webhook service for logging email events
Implemented a production-ready TypeScript/Express.js service to receive
and log MailGun webhook events (delivered, failed, opened, clicked, etc.).

Key features:
- Webhook endpoint (POST /webhook) with comprehensive event logging
- Full TypeScript type definitions for all MailGun event types
- Prometheus metrics integration for monitoring
- Health check endpoint (GET /ping)
- Comprehensive Jest test suite with 87.76% coverage
- Docker containerization with build scripts

Removed template/example code:
- All SQL/MSSQL dependencies and related code
- Example auth router and middleware
- PRTG metrics support (simplified to Prometheus only)
- Unused middleware (CORS, IP whitelist, request parsing/validation)
- Template documentation (kept only MailGun webhook API spec)

The service is clean, minimal, and focused solely on receiving and
logging MailGun webhook events to the console.

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude Sonnet 4.5 <noreply@anthropic.com>
2026-01-02 20:56:22 +01:00

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# Environment Variables for MailGun Webhook Service
# Copy this file to .env for local development
# Server Configuration
PORT=3000
# Prometheus Monitoring
# Label that will mark the metric in Prometheus (default: package.json name)
PROMETHEUS_APP_LABEL=mailgun-webhook-service
# CSV definition of buckets for Prometheus/Grafana histogram
PROMETHEUS_HISTOGRAM_BUCKETS=0.1,0.5,1,5,10
# Debug Logging
# Enable debug output for specific namespaces
# Examples: server:*, app:*, or * for all
DEBUG=server:*,app:*
# MailGun Configuration (for future enhancements)
# Uncomment and configure when adding webhook signature verification
# MAILGUN_SIGNING_KEY=your-mailgun-signing-key
# MAILGUN_WEBHOOK_TIMEOUT=30000
# Security Configuration (optional)
# Uncomment to restrict webhook access to MailGun IPs only
# ALLOWED_IPS=209.61.151.0/24,209.61.154.0/24,173.193.210.0/24