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Code Structure

This document outlines the structure of ReactJS.NET's code internally. If you are just a regular user of ReactJS.NET, you don't have to read it.


ReactJS.NET is split into several different dependencies (React.Core, React.Web, etc.). Ideally, the main "React.Core" assembly should have as few dependencies as possible. Dependencies with third-party libraries should be kept in separate assemblies unless they're required by core ReactJS.NET functionality (such as JavaScript engines)

Interfaces and Dependency Injection

ReactJS.NET uses TinyIoC for dependency injection. You shouldn't directly reference the concrete implementation of any class unless explicitly extending it. The core ReactJS.NET consists of the following interfaces:

  • IReactEnvironment - The core React environment. Handles loading of all the JavaScript files, converting JSX to JavaScript, and actually rendering components
  • IJavaScriptEngineFactory - Handles creation of JavaScript engines. Since the Internet Explorer engine is not thread-safe, a new engine will be created per-thread

To obtain an implementation of any of these interfaces in your own code, use the dependency resolver:

var environment = React.AssemblyRegistration.Container.Resolve<IReactEnvironment>();

Ideally this should be done as little as possible. Internally, ReactJS.NET code should use constructor injection except at the very root entry points.