Comprehensive Guide to Multitenancy in Elixir

The article by Mateusz Osiński delves into the powerful concept of multitenancy for Elixir applications, which allows a single software instance to serve multiple tenants—isolating their data yet sharing infrastructure. It discusses different types of multitenancy setups, such as shared database with shared or separate schemas, and separate databases. The article provides detailed examples of implementing multitenancy using schema prefixes in Ecto, foreign keys, and leveraging the Triplex library. It illustrates how to create isolated environments for tenants while managing operations centrally, making it particularly suitable for scalable, secure, and personalized experiences in SaaS and cloud-based services. Real-world code snippets and migration commands are shared to help developers implement these patterns effectively in Elixir projects.