Row-Level Multitenancy in Rails: Building a Bulletproof Tenant Isolation Layer f

<p>Thirty commits across three repos, and the day split cleanly into two halves: standing a control plane up on a bare host, and fixing the things that were quietly wrong once it

<p>If your SaaS charges customers and also plugs into those customers' billing stack, you do not have one billing problem. You have two.</p> <p>You need to bill your own customer

<p>Building a B2B SaaS platform for transport companies, I faced a critical architectural decision: separate database per tenant or shared database with logical isolation?</p>

<p>A customer opens their dashboard and sees another company’s invoices.</p> <p>Nobody needed to break in. An endpoint returned data it should never have returned.</p> <p>That’s

<p>When you're building a multi-tenant SaaS, the first architectural question is usually: how do you keep tenant data isolated? The options range from separate databases per

<p>Multi-tenancy has three common implementations: a database per tenant, a<br /> schema per tenant, and a column on every row. For a SaaS that starts small and<br /> must stay