DEVELOPER GUIDES

WhatsApp API tutorials for developers

Implement real integration workflows using RelayWA's QR-linked WhatsApp Web sessions. This is not Meta's official Cloud API. The API endpoint reference remains in documentation.

9 min read · Verified 2026-10-11

Node.js WhatsApp API: Send Messages and Verify Webhooks

A real Node.js HTTP client and signed event receiver, with fixture-based tests, for QR-linked WhatsApp sessions.

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10 min read · Verified 2026-10-11

Laravel WhatsApp API: Transactional Order Notifications

A server-side Laravel order notification flow with secure session credentials, idempotent sends and an event receiver.

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10 min read · Verified 2026-10-11

WhatsApp API QR Code and Session Troubleshooting Guide

A practical QR pairing and reconnection decision tree tied to RelayWA session states, API results and safe operational recovery.

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For accurate current request fields and webhook headers, use the API reference. Follow WhatsApp account policies and message only opted-in recipients.