firebase.json

{
  "hosting": {
    "public": "build",
    "ignore": ["firebase.json", "**/.*", "**/node_modules/**"],
    "rewrites": [
      {
        "source": "/api",
        "function": "api"
      },
      {
        "source": "/how-to/**",
        "function": "seo-seoRender"
      },
      {
        "source": "/research/**",
        "function": "seo-seoRender"
      },
      {
        "source": "/sitemap.xml",
        "function": "seo-sitemapProxy"
      },
      {
        "source": "/static/**",
        "destination": "/static/**"
      },
      {
        "source": "**",
        "destination": "/index.html",
        "headers": [
          {
            "key": "Access-Control-Allow-Origin",
            "value": "*"
          }
        ]
      }
    ],
    "headers": [
      {
        "source": "**/*.@(eot|otf|ttf|ttc|woff|font.css)",
        "headers": [
          {
            "key": "Access-Control-Allow-Origin",
            "value": "*"
          }
        ]
      },
      {
        "source": "**/*.@(jpg|jpeg|gif|png|svg)",
        "headers": [
          {
            "key": "Cache-Control",
            "value": "max-age=604800, s-maxage=3600"
          },
          {
            "key": "Access-Control-Allow-Origin",
            "value": "*"
          }
        ]
      },
      {
        "source": "static/**/*.@(js|css|map)",
        "headers": [
          {
            "key": "Cache-Control",
            "value": "public, max-age=31536000"
          },
          {
            "key": "Access-Control-Allow-Origin",
            "value": "*"
          }
        ]
      },
      {
        "source": "/service-worker.js",
        "headers": [
          {
            "key": "Cache-Control",
            "value": "no-cache"
          }
        ]
      }
    ]
  },
  "functions": {
    "predeploy": ["yarn workspace functions build"],
    "source": "functions/dist"
  },
  "emulators": {
    "ui": {
      "enabled": true,
      "port": 4001
    },
    "functions": {
      "port": 4002
    },
    "firestore": {
      "port": 4003
    },
    "hosting": {
      "port": 4004
    },
    "auth": {
      "port": 4005
    },
    "database": {
      "port": 4006
    },
    "storage": {
      "port": 4007
    },
    "pubsub": {
      "port": 4008
    }
  },
  "storage": {
    "rules": "firebase.storage.rules"
  }
}