firebase.json

{
  "hosting": [
    {
      "target": "prod",
      "public": "build/prod",
      "ignore": ["firebase.json", "**/.*", "**/node_modules/**"],
      "rewrites": [
        {
          "source": "**",
          "destination": "/index.html"
        }
      ]
    },
    {
      "target": "ppp",
      "public": "build/ppp",
      "ignore": ["firebase.json", "**/.*", "**/node_modules/**"],
      "rewrites": [
        {
          "source": "**",
          "destination": "/index.html"
        }
      ]
    },
    {
      "target": "dev",
      "public": "build/dev",
      "ignore": ["firebase.json", "**/.*", "**/node_modules/**"],
      "rewrites": [
        {
          "source": "**",
          "destination": "/index.html"
        }
      ]
    }
  ],
  "firestore": {
    "rules": "./config/firebase/firestore.rules",
    "indexes": "./config/firebase/firestore.indexes.json"
  },
  "emulators": {
    "functions": {
      "host": "localhost",
      "port": "8585"
    }
  }
}