firebase.json

{
  "functions": {
    "source": "functions",
    "predeploy": "npm --prefix \"$RESOURCE_DIR\" run build"
  },
  "hosting": [
    {
      "target": "development",
      "public": "dist",
      "ignore": ["firebase.json", "**/.*", "**/node_modules/**"],
      "redirects": [
        {
          "source": "**",
          "destination": "https://www.fukushihoken.metro.tokyo.lg.jp/iryo/kansen/corona_portal/index.html",
          "type": 301
        }
      ],
      "rewrites": [
        { "source": "/g-mark", "function": "gMark" },
        { "source": "**", "destination": "/index.html" }
      ]
    },
    {
      "target": "staging",
      "public": "dist",
      "ignore": ["firebase.json", "**/.*", "**/node_modules/**"],
      "redirects": [
        {
          "source": "**",
          "destination": "https://www.fukushihoken.metro.tokyo.lg.jp/iryo/kansen/corona_portal/index.html",
          "type": 301
        }
      ],
      "rewrites": [
        { "source": "/g-mark", "function": "gMark" },
        { "source": "**", "destination": "/index.html" }
      ]
    },
    {
      "target": "production",
      "public": "dist",
      "ignore": ["firebase.json", "**/.*", "**/node_modules/**"],
      "redirects": [
        {
          "source": "**",
          "destination": "https://www.fukushihoken.metro.tokyo.lg.jp/iryo/kansen/corona_portal/index.html",
          "type": 301
        }
      ],
      "rewrites": [
        { "source": "/g-mark", "function": "gMark" },
        { "source": "**", "destination": "/index.html" }
      ]
    }
  ]
}