Build a Query Builder in React 19 with Server Components and Server Actions

React 19's Server Components and Server Actions enable building dynamic query builders with server-side filtering logic, reducing client bundle size and complexity. The tutorial demonstrates integrating Syncfusion Query Builder with Next.js App Router to create a product filtering system where users build complex AND/OR queries visually, predicates are serialized and sent to server actions for evaluation, and results render in a table—all while keeping heavy logic off the client.