angular / angular/angularfire

collectionData doesn't allow angular app to become stable with angular 17 and ssr (getDocs does)

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#3,496 2 comments 2 reactions 0 assignees View on GitHub
Dominant language
TypeScript
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Description

### Version info

**Angular:**
17.0.9

**Firebase:**
10.7.1

**AngularFire:**
17.0.1

**Other (e.g. Ionic/Cordova, Node, browser, operating system):**
Windows

### How to reproduce these conditions

GitHub repo to clone as needs SSR to reproduce
https://github.com/pdela/testing-ng17-ssr

**Steps to set up and reproduce**

Clone the repo
install dependencies
npm run start

### Expected behavior

Angular app to become stable in reasonable time (millis)

### Actual behavior

The problem is that firebase prevents angular app to become stable in client, thus hydration process doesn't start, except after waiting for around 120 seconds

Edit:
Unfortunately I still have this problem in the demo above and in another project ( using angular 17.3.x and firebase 10.11.x) and this time using getDoc method.
I'm pretty sure the problem is originated in firestore SDK, as the 2 pending macrotasks that blocks angular being stable point to a setTimout inside firestore source code.

Contributor guide

Open the contributing guide

Research direction

Clone the linked reproduction repository, install its dependencies, and run npm run start. Compare the collectionData and getDoc/getDocs cases while observing the pending Firestore macrotasks that delay Angular stability and hydration. Done means the SSR app becomes stable promptly and hydration starts without the roughly 120-second wait.

Written by the indexing model from the issue text.

Assessment

Tech stack
angular, firebase, typescript
Domain
cloud, frontend
Issue type
Bug
Difficulty
4/5
Estimated time
3-5 days
Activity status
Stale
Clarity
Mostly clear
Newbie friendliness
25/100

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