variable substitution github actions for Angular config.json

Question

I have created an Angular app that uses RuntimeConfigLoaderService this service uses a config.json file which I want to update when I deploy my application.

I have created a deployment using github actions, the Action runs and shows the values were changed but when I open the app and display them they are empty

.

Looking at this, I seem to be doing the right thing, what am I missing:

Build file

name: Azure Static Web Apps CI/CD

on:
  push:
    branches:
      - main
  pull_request:
    types: [opened, synchronize, reopened, closed]
    branches:
      - main

jobs:
  build_and_deploy_job:
    if: github.event_name == 'push' || (github.event_name == 'pull_request' && github.event.action != 'closed')
    runs-on: ubuntu-latest
    name: Build and Deploy Job
    steps:
      - uses: actions/checkout@v2
        with:
          submodules: true
      - uses: microsoft/variable-substitution@v1
        with:
          files: './ClientApp/RetroArcadeMachines/src/assets/config.json'
        env:
          read_api_url: 'https://myReadUrl'
          write_api_url: 'https://myWriteUrl'
          write_api_url_auth: 'https://myWriteUrlAuth'
      - name: Build And Deploy
        id: builddeploy
        uses: Azure/static-web-apps-deploy@v1
        with:
          azure_static_web_apps_api_token: ${{ secrets.AZURE_STATIC_WEB_APPS_API_TOKEN_ASHY_ISLAND_0772CDD03 }}
          repo_token: ${{ secrets.GITHUB_TOKEN }} # Used for Github integrations (i.e. PR comments)
          action: "upload"
          ###### Repository/Build Configurations - These values can be configured to match your app requirements. ######
          # For more information regarding Static Web App workflow configurations, please visit: https://aka.ms/swaworkflowconfig
          app_location: "./ClientApp/RetroArcadeMachines/" # App source code path
          output_location: "dist/RetroArcadeMachines" # Built app content directory - optional
          ###### End of Repository/Build Configurations ######

  close_pull_request_job:
    if: github.event_name == 'pull_request' && github.event.action == 'closed'
    runs-on: ubuntu-latest
    name: Close Pull Request Job
    steps:
      - name: Close Pull Request
        id: closepullrequest
        uses: Azure/static-web-apps-deploy@v1
        with:
          azure_static_web_apps_api_token: ${{ secrets.AZURE_STATIC_WEB_APPS_API_TOKEN_ASHY_ISLAND_0772CDD03 }}
          action: "close"

Answer 1

My problem was that I had isDevMode() check in AppModule. I altered that to environment.production and everything work as expected