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---
title: Cleanse your Angular components of Route specific code
description: A tutorial shows how to move route-specific authentication logic out of Angular components and into Route Guards using AngularFireAuth. It walks through a...
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og:description: A tutorial shows how to move route-specific authentication logic out of Angular components and into Route Guards using AngularFireAuth. It walks through a...
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# Cleanse your Angular components of Route specific code

**[Firebase](https://daily.dev/sources/firebase-blog)** · 3 min read · 0 upvotes · 0 comments

## Summary

A tutorial shows how to move route-specific authentication logic out of Angular components and into Route Guards using AngularFireAuth. It walks through a signInWithRedirect example where redirect handling logic clutters a component's ngOnInit, then refactors it into a reusable CanActivate guard, resulting in a cleaner component with no Router dependency.

## Full article

daily.dev links to this article rather than hosting it. Read it at the original source: <https://firebase.blog/posts/2018/03/cleanse-your-angular-components>

## Questions this post answers

### How do I remove authentication redirect logic from my Angular login component?

Move the redirect handling code from the component's ngOnInit into an Angular Route Guard implementing CanActivate. The guard calls AngularFireAuth's getRedirectResult() and, if a user is returned, navigates to the target route (e.g. 'profile') and returns false; otherwise it returns true, allowing the current route to load normally. This removes the Router dependency and async logic from the component entirely.

_daily.dev surfaces practical Angular patterns like this for developers cleaning up component architecture._

### What does the canActivate method do in an Angular Route Guard used with Firebase auth?

canActivate determines whether a user is allowed to access a route by checking the result of AngularFireAuth's getRedirectResult(). If a redirect result contains a user, the guard navigates to a different route (such as 'profile') and returns false to block the original route; if no user is found, it returns true so the requested route loads as usual.

_developers wiring up Firebase auth flows follow patterns like this via daily.dev._

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---

Tags: [#typescript](https://daily.dev/tags/typescript), [#authentication](https://daily.dev/tags/authentication), [#angular](https://daily.dev/tags/angular), [#firebase](https://daily.dev/tags/firebase)

[View this post on daily.dev](https://daily.dev/posts/cleanse-your-angular-components-of-route-specific-code-wlzfbgfly)

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