#Angular
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Microfrontends Architecture
17 min read • Published on • Last Updated OnLearn how to scale frontend development with microfrontends, enabling team autonomy, independent deployments, and domain-driven boundaries for large-scale applications.TLDRMicrofrontends break large frontend applications into smaller, independent pieces that can be developed, deployed, and scaled separately.Key BenefitsTeam Autonomy: Each team owns their microfrontend end-to-endTechnology Freedom: Teams can choose different frameworks (React, Vue, Angular, Svelte)Independent Deployments: Deploy without coordinating with other teamsDomain-Driven Design: Organized around business domains, not technical layersComposition StrategiesClient-Side: Browser assembly using Module Federation, Web Components, iframesServer-Side: Server assembly using SSR frameworks, Server-Side IncludesEdge-Side: CDN assembly using Cloudflare Workers, ESI, Lambda@EdgeIntegration TechniquesIframes: Maximum isolation, complex communication via postMessageWeb Components: Framework-agnostic, encapsulated UI widgetsModule Federation: Dynamic code sharing, dependency optimizationCustom Events: Simple publish-subscribe communicationDeployment & State ManagementIndependent CI/CD pipelines for each microfrontendLocal state first - each microfrontend manages its own stateURL-based state for sharing ephemeral dataCustom events for cross-microfrontend communicationWhen to ChooseClient-Side: High interactivity, complex state sharing, SPA requirementsEdge-Side: Global performance, low latency, high availability needsServer-Side: SEO-critical, initial load performance priorityIframes: Legacy integration, security sandboxing requirementsChallengesCross-cutting concerns: State management, routing, user experiencePerformance overhead: Multiple JavaScript bundles, network requestsComplexity: Requires mature CI/CD, automation, and toolingTeam coordination: Shared dependencies, versioning, integration testing