Taking a Lovable prototype to a production application with real integrations, payments and a domain.
8 min read
Public configuration can identify an application, but private API keys must stay in server-side secrets or edge functions. Define the boundary before connecting an external API.
Deployment errors become easier to fix when build output, environment variables, routes and the published domain are treated as separate layers. Reproduce the issue from a clean build before changing unrelated code.
Put private API keys and privileged workflows behind backend functions. The browser can call a controlled endpoint, but it should never receive a secret that grants access to another service.
Stripe in Lovable: the browser starts checkout, but the backend should trust the webhook to decide whether an order or subscription is active.
Production readiness means the app remains understandable and recoverable when users, providers and networks behave unexpectedly. Security, observability, backups and error states matter as much as the happy path.
Webhooks, transactional email and domains are operational integrations. Verify signatures, use a sending domain, handle retries and test DNS from the public internet before calling the project live.
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