firebase.json

{
  "firestore": {
    "rules": "firebase/firestore.rules",
    "indexes": "firebase/firestore.indexes.json"
  },
  "emulators": {
    "firestore": {
      "host": "0.0.0.0",
      "port": 8080
    },
    "functions": {
      "host": "0.0.0.0",
      "port": 5051
    },
    "storage": {
      "host": "192.168.0.10",
      "port": 5041
    }
  },
  "hosting": {
    "public": "webapp",
    "ignore": [
      "firebase.json",
      "**/.*",
      "**/node_modules/**"
    ],
    "rewrites": [
      {
        "source": "/app/invitation",
        "destination": "/app/invitation.html"
      }
    ]
  },
  "functions": {
    "predeploy": [
      "npm --prefix \"$RESOURCE_DIR\" install",
      "npm --prefix \"$RESOURCE_DIR\" run build"
    ],
    "source": "functions"
  },
  "storage": {
    "rules": "firebase/storage.rules"
  }
}