firebase.json

{
  "firestore": {
    "rules": "firestore.rules",
    "indexes": "firestore.indexes.json"
  },
  "functions": {
    "predeploy": [
      "npm --prefix \"$RESOURCE_DIR\" run lint",
      "npm --prefix \"$RESOURCE_DIR\" run build"
    ],
    "source": "functions"
  },
  "hosting": [
    {
      "target": "music-restapi",
      "public": "public",
      "ignore": [
        "firebase.json",
        "**/.*",
        "**/node_modules/**"
      ],
      "rewrites": [
        {
          "source": "/api/**",
          "function": "api"
        }
      ]
    },
    {
      "target": "music-app",
      "public": "dist/music-app",
      "ignore": [
        "**/.*"
      ],
      "headers": [
        {
          "source": "*.[0-9a-f][0-9a-f][0-9a-f][0-9a-f][0-9a-f][0-9a-f][0-9a-f][0-9a-f][0-9a-f][0-9a-f][0-9a-f][0-9a-f][0-9a-f][0-9a-f][0-9a-f][0-9a-f][0-9a-f][0-9a-f][0-9a-f][0-9a-f].+(css|js)",
          "headers": [
            {
              "key": "Cache-Control",
              "value": "public,max-age=31536000,immutable"
            }
          ]
        }
      ],
      "rewrites": [
        {
          "source": "**",
          "destination": "/index.html"
        }
      ]
    }
  ],
  "emulators": {
    "hosting": {
      "port": "5002"
    },
    "firestore": {
      "port": "8080"
    }
  }
}