Multi-Tenant SaaS with Laravel: Automatic Data Isolation Using Global Scopes (No External Packages)

Short summary

A shared-database multi-tenant architecture for Laravel SaaS scales better than separate DBs per tenant. This tutorial implements data isolation using Laravel's GlobalScope trait and TenantContext singleton, with automatic tenant_id assignment and filtering. Includes Super Admin impersonation, read-only modes for maintenance, and tests to prevent cross-tenant data leaks.

• •Shared database with logical isolation scales better than separate DBs per tenant
• •Laravel GlobalScope trait automatically filters queries and assigns tenant_id
• •Tests and safety mechanisms prevent cross-tenant data exposure

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