Deploy Flutter Applications through Amplify Hosting

amplify.yml

version: 1
backend:
  phases:
    build:
      commands:
        - npm ci --cache .npm --prefer-offline
        - npx ampx pipeline-deploy --branch $AWS_BRANCH --app-id $AWS_APP_ID --outputs-format dart --outputs-out-dir lib
frontend:
  phases:
    preBuild:
      commands:
        - echo "Installing Flutter SDK"
        - git clone https://github.com/flutter/flutter.git -b stable --depth 1
        - export PATH="$PATH:$(pwd)/flutter/bin"
        - flutter config --no-analytics
        - flutter doctor
    build:
      commands:
        - echo "Installing dependencies"
        - flutter pub get
        - echo "Building Flutter web application with WASM support"
        - flutter build web
  artifacts:
    baseDirectory: build/web
    files:
      - '**/*'
  cache:
    paths:
      - flutter/.pub-cache