Understanding vue lifecycle integration helps you work with single-spa confidently. Here you will learn the core ideas behind vue lifecycle integration, see working code, and pick up best practices used on real teams.
Vue Lifecycle Integration Overview
Vue Lifecycle Integration lets you structure single-spa work so it stays readable, testable, and easy to scale. Instead of ad-hoc code, you follow a clear pattern that other developers can recognise immediately.
The key is to keep vue lifecycle integration focused and predictable. Start from the minimal example here, then layer in only the complexity your feature actually needs.
export async function bootstrap(props) {
// one-time setup
}
export async function mount(props) {
// render the app into props.domElement
}
export async function unmount(props) {
// tear down and clean up
}
Every single-spa application exports bootstrap, mount, and unmount lifecycle functions.
Start from a minimal Vue Lifecycle Integration example and grow it only as needed.
Keep configuration explicit so Vue Lifecycle Integration behaves the same in every environment.
Name things clearly so teammates understand your Vue Lifecycle Integration at a glance.
Add tests around Vue Lifecycle Integration early to lock in expected behaviour.
Single-SPA Cheatsheet
Core single-spa APIs related to vue lifecycle integration.
API
Example
Purpose
registerApplication
registerApplication({ name, app, activeWhen })
Register a micro frontend
activeWhen
activeWhen: ['/checkout']
Route ownership
start
start()
Begin routing
bootstrap
export async function bootstrap()
One-time setup
mount
export async function mount(props)
Render the app
unmount
export async function unmount(props)
Clean up the app
import map
systemjs-importmap
Locate app bundles
How Vue Lifecycle Integration Works in Single-SPA
Vue Lifecycle Integration is part of how single-spa lets multiple applications — even in different frameworks — coexist on one page. A root config registers each app and controls when it is active.
Every single-spa application exports bootstrap, mount, and unmount lifecycle functions.
A root config registers apps and calls start().
Each app exports bootstrap, mount, and unmount lifecycles.
activeWhen decides which routes each app owns.
Import maps resolve each app's bundle at runtime.
Practical Guidance for Vue Lifecycle Integration
For reliable micro frontends, vue lifecycle integration should isolate failures and keep shared state minimal. Let each team own its app end to end while agreeing on a few shared contracts.
Concern
Recommendation
Isolation
One app's crash should not break others
Shared state
Prefer shared utility modules over globals
Routing
Keep activeWhen rules explicit and non-overlapping
Deployment
Release via import-map updates per app
Common Mistakes
Skipping error handling and edge cases when wiring up vue lifecycle integration.
Leaving vue lifecycle integration untested, so regressions slip into production.
Over-engineering vue lifecycle integration before you actually need the extra flexibility.
Ignoring documentation, which makes vue lifecycle integration hard for the next developer to change.
Key Takeaways
Vue Lifecycle Integration is a core part of working effectively with single-spa.
Start small and keep vue lifecycle integration focused on a single responsibility.
Apply consistent patterns so vue lifecycle integration scales across your project.
Test and document vue lifecycle integration to keep it maintainable over time.
Pro Tip
When you get stuck on vue lifecycle integration, reduce it to the smallest reproducible example first — most single-spa issues become obvious once the noise is gone.
You now understand vue lifecycle integration in single-spa and how to apply it in real projects. Next, continue with Vue Router Integration to keep building your skills.