Two technical guides outline key components for building SaaS applications. The first explains how Extract‑Transform‑Load (ETL) processes connect data from disparate SaaS tools such as Salesforce, Stripe, Zendesk and Slack. It clarifies the roles of OLTP (online transaction processing) databases for fast, record‑by‑record operations, OLAP (online analytical processing) data warehouses for large‑scale analysis, and the emerging HTAP (hybrid transactional/analytical processing) approach that attempts to combine both functions.
The second guide details a practical Stripe integration for Next.js 15, covering a single shared Stripe client, creation of checkout sessions for subscriptions, and the critical use of webhooks to reliably record payment outcomes on the server side rather than relying on browser redirects.
Entities
ETL (Extract‑Transform‑Load) · HTAP (Hybrid Transactional/Analytical Processing) · Next.js · SaaS · Stripe