Third-Party Integrations & WhatsApp Automation
Connect WhatsApp Business API, Stripe/Razorpay payments, CRMs, and resilient webhook pipelines.
Fixed milestone scope • No hourly surprises • Direct GitHub delivery
For omnichannel customer messaging, legacy ERP integrations, custom webhooks, and complex automated billing.
Why Typical Approaches Fail & How We Engineer It
Real engineering discernment: diagnosing root failure modes and engineering resilient solutions instead of generic AI wrappers.
Manual customer notifications, dropped payment webhooks, and out-of-sync CRMs waste dozens of staff hours weekly and lead to lost customer trust and dropped revenue.
We build resilient integration pipelines. Every webhook is cryptographically verified (HMAC), processed idempotently with deduplication keys, queued via BullMQ with exponential backoff retries, and logged with dead-letter queue (DLQ) alerts.
Technical Architecture Blueprint
[WhatsApp Cloud API / Stripe Gateway]
│ (HMAC Signature & Idempotency Key)
▼
[Edge Webhook Receiver] ──▶ Cryptographic Signature Verification
│
▼
[BullMQ Redis Queue] ──▶ Concurrency Throttling & Exponential Retries
│
├─▶ Success ──▶ [PostgreSQL Transaction Update] ──▶ WhatsApp Notification
│
└─▶ Failure ──▶ [Dead-Letter Queue (DLQ)] ────────▶ Sentry Alert & Auto-RetryExact Deliverables & Scope
Clear scope boundaries eliminate surprises. Here is exactly what is delivered in a standard sprint versus what is handled under custom scope.
- WhatsApp Business API or Stripe/Razorpay webhook integration
- Cryptographic webhook signature verification and idempotency logic
- Retry queues with BullMQ and dead-letter alert logging
- Admin test suite and sandbox verification
- •Multi-channel messaging across WhatsApp, SMS, Telegram, and Email
- •Complex bidirectional legacy SAP/Salesforce ERP synchronization
Technologies Implemented in This Service
How This Sprint Is Executed
Discovery & Code Audit
Understand your product goals, inspect your existing codebase or requirements, and define a clear milestone roadmap with fixed deliverables.
Rapid Prototype & Validation
Build and validate a working prototype or targeted fix to test assumptions, AI response quality, and API contracts early with your team.
Implementation & Hardening
Refine business logic, implement caching and error handling, optimize database queries, and test edge cases thoroughly with regression tests.
Production Handover & Support
Deploy to production, integrate with your existing stack, and provide complete documentation, tests, and code walkthroughs.
Frequently Asked Questions About This Sprint
How do you handle duplicate webhooks from Stripe or WhatsApp?
We record idempotency keys in Redis/PostgreSQL within a transaction. If a duplicate webhook arrives, it is acknowledged instantly without re-executing billing or messaging logic.
Ready to Build Third-Party Integrations & WhatsApp Automation?
Tell me about your tech stack and target timeline. I review requirements and provide a clear milestone scope within 24–48 hours.
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