Developer Guides
Guides on localhost tunneling, local webhook debugging, ngrok alternatives, and secure HTTPS tunnels for modern development teams.
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Stripe Connect Webhooks: The Local Testing Guide
Test Stripe Connect webhooks locally. Account events, the connected-account header, deauthorization handling — what regular Stripe guides leave out.
Test the OpenAI Realtime API Locally Over a Tunnel
Test the OpenAI Realtime API on localhost with a WebSocket-friendly HTTPS tunnel. Ephemeral tokens, browser-side connections, and the debugging tricks that help.
Test Twilio Webhooks Locally: Full Guide
Test Twilio webhooks locally for SMS, voice, and messaging callbacks. Use a secure HTTPS tunnel to inspect payloads and validate signatures on localhost.
Vite + Tunnel: HMR That Actually Works
Run Vite behind a localhost tunnel for HTTPS, mobile testing, and live HMR. Fix the allowedHosts gotcha and the WebSocket HMR drop in one config change.
Webhook Replay: Debug Without Re-triggering
Webhook replay resends captured callbacks to your local handler without re-triggering upstream events. Debug faster with request history and one-click replay.
Webhook Retries and Idempotency Without Tears
Webhook providers will deliver the same event twice. Treat it as a feature, not a bug. Practical patterns for idempotent handlers, dedup keys, and replay-safe code.
Webhook Signature Verification, Without the Mystery
Most webhook signature failures aren't crypto bugs. They're parsing bugs. Real fixes for HMAC, timing-safe comparison, replay attacks, and raw-body handling.
Is Localhost Tunneling Safe? Security Guide
Localhost tunneling is safe when you use HTTPS, expose only intended ports, and audit your tunnel client. Learn security best practices for development tunnels.
How to Test OAuth Callbacks Locally
Test OAuth callbacks on localhost with a secure HTTPS tunnel. Configure redirect URIs for Google, GitHub, and Auth0 without staging deploys.