Resrender

Resrender is a lightweight, open-source rendering engine designed to turn resource-oriented data into user interfaces. It treats data as resources with identity and state, and aims to minimize re-rendering by applying fine-grained updates when resource fields change. The project supports both client-side and server-side rendering and strives for a predictable, small runtime footprint.

Core concepts include declarative resource templates, adapters that translate API data into resource models, and a rendering pipeline that separates data fetching, transformation, and output. Resrender supports incremental rendering, streaming SSR, and hydration of server-rendered markup to enable interactivity without full rehydration.

Architecturally, resrender provides a core runtime and a set of adapters. The runtime maintains a resource graph, performs fine-grained diffing on resource state, and updates the output via a lightweight virtual rendering layer. Adapters handle REST, GraphQL, or custom data sources, while templates describe UI mappings for resource properties.

Usage typically involves installing the library, registering adapters for data sources, and defining resource templates that map properties to UI fragments. Rendering can be triggered by state changes or events, and output can be mounted in the DOM or rendered on the server for hydration. The project generally uses a permissive license and supports plugins to extend functionality.

Resrender is used for applications that manage complex resource data and require efficient updates. It differentiates itself with fine-grained diffing and a modular architecture, and aims for straightforward integrations with existing frameworks through adapters or wrappers. Development focuses on performance, accessibility, and an approachable API.