Firebase hosting issues with assetlinks.json

[Kurczaak]

I am trying to host assetlinks.json file on my Flutter web app using GitHub actions and Firebase hosting. I successfully managed to achieve this in one of my projects. Unfortunately, when I copy-pasted the configuration to my other project, it does not work. I have tried multiple solutions like:

• Creating assetlinks.json in GitHub actions both in web, and/or build/web folders
• Deploying web folder with ./well-known/assetlinks.json file
• Verifying the content of build./well-known/assetlinks.json file before deployment (It's always correct)
• Adding "dynamicLinks": true in my firebase.json rewrites section
• Adding "appAssociation": "NONE"/ "appAssociation": "AUTO" in my firebase.json
• Verifying the content in browser, postman and https://developers.google.com/digital-asset-links/tools/generator.
  I feel like I've tried every possible solution. What's more concerning is that I literally copied the setup of one project into another. However, this works perfect when I host the app using 'firebase deploy' in my terminal

[REQUIRED] Environment info

firebase-tools: 13.14.2

Platform: macOS

[REQUIRED] Test case

Host a new Flutter Web App using Github actions with the following config:

firebase.json
{ "hosting": { "public": "build/web", "ignore": [ "firebase.json", "**/.*", "**/node_modules/**" ], "headers": [ { "source": "/.well-known/assetlinks.json", "headers": [ { "key": "Content-Type", "value": "application/json" } ] } ], "rewrites": [ { "source": "/.well-known/assetlinks.json", "destination": "/.well-known/assetlinks.json" } ] } }

firebase-hosting-merge.yml
`name: Deploy to Firebase Hosting on merge
'on':
push:
branches:
- main
permissions:
checks: write
contents: read
jobs:
build:
name: Build
runs-on: ubuntu-latest
steps:
- name: 📚 Git Checkout
uses: actions/checkout@v4
- name: 🐦 Setup Flutter
uses: subosito/flutter-action@v2
with:
channel: "stable"
flutter-version: 3.24.1

  - name: 🛠️ Build the application
    run: flutter build web

  - name: ⬇️ Archive Production Artifact
    uses: actions/upload-artifact@master
    with:
      name: build
      path: build/web

deploy:
name: "Deploy"
runs-on: ubuntu-latest
needs: build
steps:
- name: 📚 Checkout repo
uses: actions/checkout@v4
- name: ⬇️ Download Artifact
uses: actions/download-artifact@master
with:
name: build
path: build/web

  - name: 🎯 Deploy to firebase
    uses: FirebaseExtended/action-hosting-deploy@v0
    with:
      repoToken: '${{ secrets.GITHUB_TOKEN }}'
      firebaseServiceAccount: '${{ secrets.FIREBASE_SERVICE_ACCOUNT_YOUR_PROJECT }}'
      projectId: your-project-id
      channelId: live`

[REQUIRED] Steps to reproduce

1. Create a new Flutter app
2. Create a new Firebase project
3. Run firebase init and setup Hosting with GitHub actions
4. Replace the content of firebase-hosting-merge.yml and firebase.json with your data
5. Add web/.well-known/assetlinks.json file according to the generator https://developers.google.com/digital-asset-links/tools/generator.
6. Push changes to main branch, running github actions
7. Visit your-domain.com/.well-known/assetlinks.json

[REQUIRED] Expected behavior

your-domain.com/.well-known/assetlinks.json returns a valid assetlinks.json file

[REQUIRED] Actual behavior

your-domain.com/.well-known/assetlinks.json returns []

[joehan]

Hey @Kurczaak - I'm not very familiar with assetlinks.json, but one possible cause here would be that the "**/.*" pattern in firebase.json#hosting.ignore is causing .well-know/assetlink.json to be ignored. If you remove that pattern (or move assetlink.json to another folder that doesn't begin with .), does it work as expected?

[Kurczaak]

The file needs to be in "./well-known" directory so I deleted the "**/.*" pattern in firebase.json#hosting.ignore. Unfortunately, it didn't solve the problem

[ready4sea]

@Kurczaak Have you ever found a solution to this issue ?

[Lerobindesbois]

This a very problem, is impossible to migrate DyanamicLink firebase :-( Because is impossible to update file in my projet flutter -> web/.well-known/assertlink.json