Architecting IAM for Microservices

* Architecting IAM for Microservices: Why Identity Should Be a Platform Layer * Managing identity and access in modern applications is more than just authentication—it’s becoming a critical platform concern. When building microservices or multi-tenant SaaS platforms, IAM (Identity and Access Management) is no longer a peripheral feature—it’s a core piece of infrastructure that affects security, scalability, and developer velocity. At Aswar.io, we’ve been exploring practical patterns for architecting IAM in a microservices ecosystem. Our goal is to simplify Keycloak provisioning and IAM management, so teams can focus on building features instead of reinventing identity infrastructure. * 1️⃣ Why IAM Becomes Complex in Microservices * In monolithic apps, authentication and authorization often sit inside the application. Once you start splitting functionality across services, this approach breaks down: Multiple services need to validate tokens and enforce permissions. Shared session manage