Writing
#nestjs
2 articles tagged nestjs.
Idempotent WhatsApp Webhooks in NestJS: Receiving Messages You Can't Process Twice
How Matcha handles inbound WhatsApp Cloud API webhooks in NestJS — a verify-token handshake, HMAC signature checks, and a unique index that makes a retried delivery a no-op.
nestjswebhooksintegrationbackend
Ports and Adapters in NestJS: A Domain That Doesn't Know About Mongo
A deep-dive into hexagonal architecture in Matcha's NestJS backend: ports, Symbol() tokens, and one repository with two interchangeable adapters.
nestjsarchitecturehexagonalddd