Learn how to design scalable systems with principles like separation of concerns, encapsulation, and loose coupling.
Organize by responsibility. Each module should handle only one function.
/modules/auth/
/modules/api/
/modules/ui/
Hide implementation details. Expose only necessary interfaces.
Minimize direct dependencies between components for better flexibility.
DirectClassReferenceInterfaceImplementation
Combine simple modules to create complex solutions.
search =
api + ui +
auth
Core provides common infrastructure while plugins add functionality.
core/
plugins/authentication/
plugins/payment/
Share code between applications via remote module references.
// webpack.config.js
shared: {
'react': { singleton: true }
}
Dynamic module loading system with dependency resolution.
class ModuleLoader {
constructor(modules) {
this.modules = modules;
}
async load(moduleName) {
console.log(`Loading ${moduleName}`);
return this.modules[moduleName]();
}
}
Use events or middleware for cross-module messaging.
// Event-based
EventBus.on('file-upload', (data) => {
console.log('File event received:', data);
});
EventBus.emit('file-upload', { progress: 80 });
Use semantic versioning. Increment versions based on changes.
1.0.0 - initial version
1.1.0 for features
Keep interfaces and dependencies well-documented for clarity.