firebase.json

{
  "functions": {
    "predeploy": ["npm --prefix \"$RESOURCE_DIR\" run lint"],
    "source": "functions"
  },
  "hosting": {
    "public": "build",
    "ignore": ["firebase.json", "**/.*", "**/node_modules/**"]
  },
  "emulators": {
    "functions": {
      "port": 5001,
      "host": "127.0.0.1"
    },
    "ui": {
      "enabled": true
    },
    "auth": {
      "port": 9099,
      "host": "127.0.0.1"
    },
    "firestore": {
      "port": 8080,
      "host": "127.0.0.1"
    },
    "database": {
      "port": 9000,
      "host": "127.0.0.1"
    },
    "hosting": {
      "port": 5000,
      "host": "127.0.0.1"
    },
    "pubsub": {
      "port": 8085,
      "host": "127.0.0.1"
    },
    "storage": {
      "port": 9199,
      "host": "127.0.0.1"
    }
  },
  "storage": {
    "rules": "storage.rules"
  },
  "database": {
    "rules": "database.rules.json"
  },
  "firestore": {
    "rules": "firestore.rules",
    "indexes": "firestore.indexes.json"
  },
  "remoteconfig": {
    "template": "remoteconfig.template.json"
  }
}